News & Press

Solar kitchen launch with Don Bosco in Kakuma, Kenya

Posted Wednesday 9 November 2022, by Samuel Rodrigues

This September Solar Fire started another project with Don Bosco, this time in Kakuma. Kakuma is a small town in the Turkana region, north west (...)

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We did it!

Posted Thursday 3 November 2022, by Eva Wissenz

A big big thank you to all those who have supported this campaign in one way or another. This raised budget will (...)

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"Afrikka ponnistaa kohti kiertotaloutta"
24. September 2022 (...)

Nebbi Solar Bakery Preparing a Cake for Uganda’s President’s Son’s Birthday

Posted Friday 16 September 2022, by Eva Wissenz

What a lovely birthday cake! It has been solar baked by Nebbi solar bakery for General Muhoozi for his birthday celebration in May 2022. Then, (...)

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Uyo’s Passengers

Focus entrepreneurs – A professional solar oven, Lytefire
27. June 2022 (...)

Campaign launch! Support Solar Bakery Pioneers in East Africa

Posted Friday 17 June 2022, by Eva Wissenz

Help Joan, Hashimu and Allen to inspire their local communities by harnessing the power of the sun and creating sustainable bakeries! Feeding (...)

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New sponsors: Siemenpuu Foundation and ASE

Posted Wednesday 1 June 2022, by Eva Wissenz

Like any other company, we had to adapt to covid and to the complexity of our world. We don’t want to travel too much for long projects anymore, (...)

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Pain solaire pour les femmes de Lougsi au Burkina en 2022

Posted Wednesday 18 May 2022, by Martin Pouabidjie

Ces jours derniers nous sommes allés installer un four solaire Lytefire 6 dans la communauté de Lougsi située à environ 30km de Ouagadougou. Nous (...)

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Feeling the Entrepreneurship Spirit in Uganda

Posted Sunday 8 May 2022, by Urs Riggenbach

I have just returned from an amazing trip to Uganda and Kenya to see firsthand the amazing impacts of Lytefire with some of the 250+ (...)

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Our Solar entrepreneurs in Nebbi after Lytefire training!

Posted Wednesday 20 April 2022, by Hanna Williams

It has been over 3 months since the training in Nebbi in January and since the trainers left it has been an incredible success! With the Solar (...)

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The future shines bright with the ‘Sun Light Solar Bakery!’ in Alebtong

Posted Friday 8 April 2022, by Hanna Williams

The journey continues with Plan International’s Smart Up Factory as the team visits Alebtong, the most rural area the trainers have visited so (...)

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In Embu, Kenya, Don Bosco’s Tech School Solar Bakery is up and running

Posted Thursday 7 April 2022, by Nigel Jonathan, Samuel Rodrigues

The Don Bosco Technical Institutes boasts a number of different workshops. Walking around the school you can see students working on metal (...)

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The Northern Daily News

Alebtong: 15 youth get skills to operate a solar-powered bakery
2. April 2022 (...)

2d project with Plan International in Uganda in 2021-2022

Posted Friday 1 April 2022, by Lorin Symington

We are back in action in Uganda with Plan International and Plan Uganda! In 2018 we delivered two of our solar bakery and entrepreneurship (...)

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It’s Climate Strike today

Posted Friday 25 March 2022, by Eva Wissenz

The Lytefire 4 construction guide is at 5€ instead of 99€ for 24 hours ( With it, you can build yourself a (...)

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Ojwina 2 week Refresher training

Posted Wednesday 23 March 2022, by Hanna Williams

In 2018 the Lytefire solar oven was installed in Gulu, it was then relocated in 2021 and transported from Gulu to Lira’s Smart Up Factory (...)

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"Youth benefiting from Smart Up factory project "
17. March 2022

Kampala’s training for the Solar Tech Bakery

Posted Thursday 10 March 2022, by Hanna Williams

Kampala, the capital of Uganda is the most exhilarating city I have ever experienced! With a population of 3.6 million it is no wonder Kampala is (...)

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Smart Up Factory is the only bakery in Nebbi!

Posted Monday 7 March 2022, by Hanna Williams

After an energetic 3 weeks training course with the inspirational students in Nebbi, Uganda, it has been an incredibly successful experience! (...)

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The dawn of solar project in Embu with Don Bosco in 2021

Posted Friday 4 March 2022, by Nigel Jonathan, Samuel Rodrigues

Embu is a town on the foothills of Mount Kenya, with wide landscapes, endless fields and fresh, crisp air. The town is alive in all senses of the (...)

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Kampala Capital City Authority

18. February 2022


"The Oven uses a combination of mirrors that reflect the sun heat up the oven to a temperature of up to 300 degrees Celsius."
2. February 2022

Smart Up Solar training in Nebbi

Posted Tuesday 18 January 2022, by Hanna Williams

We are beyond excited to start our 2022 training projects with Plan International’s Smart up hubs in Uganda beginning here in Nebbi! After a (...)

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"Équipé du premier four solaire d’Europe, cet artisan normand transforme des produits locaux"
16. January 2022 (...)

Kamuli Youth Solar Bakers!

Posted Thursday 13 January 2022, by Hanna Williams

Welcome our new Kamuli Youth Solar Bakers!! After an exciting collaboration with Plan International back in 2018, the team arrived at Smart Up (...)

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Let’s inspire and educate with GoSol!

Posted Thursday 25 November 2021, by Hanna Williams

“Progress is impossible without change, and those who cannot change their minds cannot change anything.” GoSol’s mission is to influence and inspire (...)

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With Jansen PrimeSteps Foundation in Burkina-Faso in 2022-2023

Posted Monday 22 November 2021, by Urs Riggenbach

We are proud to announce the start of our cooperation with the Swiss based Jansen PrimeSteps Foundation. With the support and advise of the (...)

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agrar aktuell

"Towards sustainability – solar energy for the other 99 %" (p. 37)
22. November 2021 (...)

Don Bosco: a new partner to bring Solar Entrepreneurship to Refugees Settlement in Kenya, 2022

Posted Monday 15 November 2021, by Urs Riggenbach

With Don Bosco Jugendhilfe Weltweit we have found a new project partner dedicated to empowering youths. Active all over the world, this (...)

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Announcing new Partnership with Plan International to Empower Entrepreneurs in Uganda

Posted Monday 1 November 2021, by Urs Riggenbach

We are excited to announce this new partnership to empower entrepreneurs to run solar bakeries and food businesses across 11 locations in Uganda. (...)

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Formation à la capitale et installation au village au Burkina avec l’association Tora Coeur de Caux

Posted lundi 1er novembre 2021, by Eva Wissenz, Martin Pouabidjie

Mission accomplie ! C’est en janvier 2021 que l’association normande Tora Coeur de Caux nous a contacté par l’intermédiaire de notre (...)

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"Il forno che riesce a produrre fino a 100 kg di pane al giorno usando solo l’energia solare"
8. October 2021 (...)

We are featured by "Education Finland" !

Posted lundi 4 octobre 2021, by Eva Wissenz

Solar Fire Concentration Oy is very happy and honored to see the Lytefire oven featured among the Finnish companies presented by the Finnish (...)

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About 300 solar buns a day for a Montessori school in Mwanza !

Posted mercredi 1er septembre 2021, by Lorin Symington

Jambo mambo ! Habari ako ? Nzuri sana ! Greetings and salutations from Mwanza, Tanzania. Also known as Rock City, this city of about a million (...)

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Tanzania: a Montessori school chose Lytefire

Posted Saturday 19 June 2021, by Lorin Symington

We’re happy to announce that we will be implementing an innovative new project in the Mwanza region of Tanzania in association with Montessori (...)

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The Ladies of Goghin, solar bakers in Burkina Faso in 2020

Posted Monday 31 May 2021, by Lorin Symington

We’re very happy to announce the ladies of Goghin have gone solar! Thanks to your generous contributions on the (...)

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Starting in Ethiopia

Posted Friday 21 May 2021, by Eva Wissenz

STEM Synergy, is a US-Ethiopian NGO, focused on empowering people (especially youths and women) through practical STEM (Science, Technology, (...)

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Tasty solar bread in Burkina Faso

Posted Wednesday 19 May 2021, by Muriel Fuhrer

Tasteful smelling and freshly baked bread. Crispy on the outside, and fluffy on the inside - It’s so amazing that the baking heat was created by (...)

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Introducing our country managers in 2021

Posted Wednesday 21 April 2021, by Auriina Korhonen

As we continue to grow and to expand our work in new locations, and find new pathways to create impact, the development of solid teams in our (...)

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The Saturday Solar Baking’s in Kenya

Posted mercredi 10 février 2021, by Eva Wissenz

If you remember, we started in Kenya in 2016 with World Vision, and continued the prototyping the year after with the support of Autodesk (...)

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Building Impact with the First Solar Bakeries in Ethiopia

Posted mardi 2 février 2021, by Urs Riggenbach

Announcing Solar Fire Cooperation with STEM Synergy to empower Youths and Women with Lytefire Solar Ovens in Ethiopia. We are really excited to (...)

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Solar baking in Haiti with Remar

Posted Monday 25 January 2021, by Lorin Symington

Next up in our series of engagements with the amazing NGO Remar, I visited Haiti in order to install a baking oven on the roof of the orphanage (...)

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Happy New Year 2021!

Posted Tuesday 12 January 2021, by Eva Wissenz

Dear Friends, Clients, Partners, Followers and Supporters, In 2020, the Lytefire Solar Sauna and the Lytefire Solar Oven have been featured in (...)

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A new solar bakery in Burkina Faso

Posted vendredi 27 novembre 2020, by Lorin Symington

We’re very happy to announce the success of our collaboration with the NGO Remar in Burkina Faso. We have officially opened of a brand new, (...)

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M6 Info

"Au plus près de vous..." avec un boulanger
24. November 2020 (...)

Le monde

"De la douche mobile au four à pain, l’énergie solaire à concentration se développe"
22. November 2020 (...)


French engineer turned bread maker presents Europe’s first solar-powered bakery
6. November 2020

France Bleu

Les journaux d’infos France Bleu Normandie (Rouen): 5:50 - 7:15 (Audio)
6. November 2020 (...)

France Bleu

"Seine-Maritime : à Montville, un boulanger cuit son pain dans un four solaire"
5. November 2020 (...)

3 normandie

National French TV France 3, Nov 12, 2020. Introducing Lytefire 11 (00:02:58-00:04:55)
3. November 2020


"The sun can do everything - even bake bread"
23. October 2020 (...)

Solar Energy Engineering Blog

"Can Solar Thermal Energy be a Game-Changer? — Part 2"
1. October 2020 (...)

Paris Normandie

"Un four à pain solaire de 11 m² construit dans la région du Havre, et c’est une première !"
22. September 2020 (...)

First Wood-Based Lytefire 5 Unit to Make Pizzas in the Swiss Alps!

Posted Wednesday 9 September 2020, by Urs Riggenbach

Since a few weeks we have the first wood-based solar concentrator installed at Heuberge Mountain Resort in Switzerland, where we have also (...)

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"so-talk Urs Riggenbach, Lytefire und GoSol.Solar"
4. September 2020

Basler Zeitung

"New development of the Solar Sauna, based on a technology that also helps with sustainability in the developing world"
8. August 2020 (...)

Online Interdisciplinary Design Course on Solar Thermal Energy

Posted Tuesday 9 June 2020, by Urs Riggenbach

As reported earlier, together with Bern University of Applied Sciences (BUAS) we launched a education course on design and development of (...)

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Interdisciplinary Education Project to develop wood-fabrication methods of Lytefire Solar Concentrators

Posted Tuesday 12 May 2020, by Urs Riggenbach

We are excited to announce that together with Berne University of Applied Sciences we facilitated an interdisciplinary design/build course in (...)

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Followup visit in the Philippines: 8 months later

Posted Monday 27 April 2020, by Eva Wissenz

We recently revisited our partners USTP (The University of Science and Technology of the Southern Philippines) and CarbonCycle in Cagayan de Oro, (...)

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Forest Trends

"The “Amazon Strategy” – How to Build Resilient Supply Chains and Food Systems post-Pandemic"
24. April 2020

Crowdfunding for a Solar Bakery in Burkina Faso

Posted Wednesday 1 April 2020, by Lorin Symington

We are very happy to have launched a small crowdfunding campaign to support two dynamic guys in Burkina Faso to create a solar bakery and (...)

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We’re coming to your doorstep !

Posted lundi 30 mars 2020, by Eva Wissenz

Last Christmas, as an act of faith in people’s empowerment and in our solution to play a significant role in climate change crisis resolution, we (...)

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Building in Burkina Faso with Remar

Posted Thursday 27 February 2020, by Lorin Symington

We launched a new project with Remar International in Burkina Faso to empower women entrepreneurs. As always we fabricated the solar units (...)

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Achille Sawadogo (

"Discovering GoSol’s Solar Concentration Oven, a promising project in Burkina Faso"
6. February 2020 (...)

Paris Normandie

"Près de Rouen, il torréfie des graines à l’aide du soleil"
6. February 2020 (...)

Happy New Year 2020 !

Posted vendredi 17 janvier 2020, by Eva Wissenz

Dear Friends, Clients, Partners, Followers and Supporters, We wish to see more peace and more justice everywhere. We wish that change makers do (...)

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The Future of GoSol, Lytefire and Solar Fire

Posted jeudi 26 décembre 2019, by Urs Riggenbach

Longtime followers will know that we started as Solar Fire and then created GoSol in order to take our experience in solar thermal energy and (...)

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Our Gift to the World:
The Lytefire Construction Guide Available Now!

Posted Tuesday 24 December 2019, by Urs Riggenbach

Today we release the Lytefire 4 Construction Guide to help solve the climate change crisis. It is immediately available for free on the (...)

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Ouest France

"En Normandie, le soleil suffit à cuire et torréfier les graines"
16. December 2019 (...)

Tendance Quest

"Montville. Un torréfacteur solaire : une première mondiale"
28. November 2019 (...)

L’Age de Faire

"Tournesol, lin, chanvre, noisette ou châtaigne… Grâce à son torréfacteur solaire, une coopérative soutient les filières locales et propose des alternatives aux produits importés de l’autre bout du (...)
28. November 2019 (...)

Best Validation Ever in Kenya

Posted Tuesday 12 November 2019, by Eva Wissenz, Jared Omondi

For a company, especially an impact company like ours, the best validation comes from the field. Last week, our representative in Kenya, Mr Jared (...)

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GoSol showing off in Switzerland

Posted mardi 5 novembre 2019, by Eva Wissenz, Judith Bernet

This autumn is so exciting that we didn’t get any chance to blog and share a bit more with you guys !! Some of our GoSol-team came together in (...)

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GoSol Event on 14th of November at ResponsAbility, Zurich

Posted Sunday 3 November 2019, by Urs Riggenbach

Swiss Impact Investing Network (SIIN) and GoSol are welcoming you to join us for an impact talk on the topic of How to Build a Business Model for (...)

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Le Parisien

GoSol is featured in national French newspaper. "En Seine-Maritime, des graines torréfiées par le soleil normand"
24. October 2019 (...)

Autodesk Foundation

We’re featured by Autodesk again. "Five Years of Impact: Using Design to Make a Better World"
23. October 2019 (...)

Paris Normandie

The solar concentrator operated by our CTO in France is featured in French newspaper. "À Montville, près de Rouen, Arnaud Cretot lance sa première torréfaction avec un four solaire"
23. October 2019 (...)

GoSol on display in Switzerland!

Posted Sunday 22 September 2019, by Judith Bernet

GoSol on display in Switzerland! Solothurn is not known for being the most sunny place in Switzerland – but (...)

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Strike if you wish but more than this: take action.

Posted Friday 20 September 2019, by Eva Wissenz

It is now 7 years since we created Solar Fire and GoSol. As friends, we are more than happy. Our team is still united no matter what. We (...)

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Forest Trends

Together with partners including Original Beans,, and Canopy Bridge, Forest Trends has seen similar success supporting value chains for honey, babassu (an alternative to coconut oil), açai berries, and wild (...)
7. September 2019 (...)

Several GoSol Events are happening in Switzerland this September

Posted Wednesday 4 September 2019, by Urs Riggenbach

Read in German We are excited to extend our invites for two events that will happen in Switzerland this September. Since a few days (...)

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Solar Entrepreneurship: Lytefire maximise profits for cashew nuts producers

Posted Tuesday 20 August 2019, by Lorin Symington

The Best Agri Products Processing Cooperative (Bappco) is a busy hive of activity. Six days a week the men and (mostly) women of Bappco are hard (...)

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This was TBLI Conference Zurich 2019

Posted Saturday 20 July 2019, by Urs Riggenbach

Last month I attended the TBLI Conference in Zurich. The conference brought together impact investors and companies with a commitment for real (...)

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Forest Trends feedback in the Amazon

Posted mercredi 26 juin 2019, by Urs Riggenbach

We started our cooperation with Forest Trends last year in the Amazon with the Surui. Today, the US based NGO reported that "The pilot (...)

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Solar charcoal, cashew nuts process and new evolutions

Posted Monday 20 May 2019, by Lorin Symington

Prototyping: beautiful (sometimes frustrating) and creative (sometimes repetitive trial and error iteration) prototyping! Building innovative new (...)

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Partner spotlight: CarbonCycle Processing Inc.

Posted Wednesday 8 May 2019, by Lorin Symington

Writing to you from the Philippines, we’re entering the most exciting phase of this collaboration. The construction of 4 Lytefire 5 units is (...)

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Impact Finland next week

Posted mardi 30 avril 2019, by Eva Wissenz

I’m very excited and happy to represent my team at the InnoFrugal 2019 pitching contest on May 7th and to be invited as a speaker at Waves (...)

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Sometimes it only takes a poem, a garden and a few heroes.
A note from Oxford, Skoll World Forum.

Posted Monday 29 April 2019, by Eva Wissenz

I’m here, in the garden of Rhodes House, in Oxford. After three days only, I’m already adapted to this old town where so many amazing people have (...)

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Announcing Collaboration with USTP University

Posted samedi 27 avril 2019, by Eva Wissenz

We are happy to announce the start of a collaboration with the University of Science and Technology of Southern Philippines. Carbon Cycle ltd is (...)

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GoSol’s Guest Lecture at University of California, Berkeley

Posted Saturday 27 April 2019, by Urs Riggenbach

UC Berkeley campus, California. © Wikimedia In February 2019 we kicked-off a collaboration with UC Berkeley’s MDP department, (...)

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Grand Challenges of Sustainability

Posted Thursday 18 April 2019, by Eva Wissenz

I’m honoured and happy to be invited by the Lappeenranta University of Technology to be part of the panel discussion on Grand Challenges of (...)

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Why GoSol

Posted Friday 12 April 2019, by

This is a key reading to understand our work and our vision. This text is a short version of a much longer text that unpacks all the arguments (...)

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"You have the energy right over your head, so you have to utilize it"

Posted Friday 5 April 2019, by Lorin Symington

This is an interview with Derrick, one of the youth mentors at the Gulu SmartUp Factory, Uganda. In the video, he discusses why entrepreneurs (...)

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USTP’s Innovation Summit 2019 in the Philippines

Posted Tuesday 2 April 2019, by Lorin Symington

Last week I was honoured to be invited as a speaker to the 2nd Innovation Summit 2019 hosted by The University of Science and Technology of the (...)

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"I want to be one of the youths who are job creators"

Posted Thursday 21 March 2019, by Lorin Symington

Meet Angella, one of the young women at SmartUp Factory Tororo who participated in our solar entrepreneurship education training. Angella was one (...)

Read article starting in the Philippines

Posted Tuesday 19 March 2019, by Lorin Symington

I’m extremely excited to be travelling to the Philippines to work with our new client and partner, CarbonCycle. I’ve never been anywhere in Asia (...)

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CEO impact events : SDG’s workshop in Helsinki and Skoll forum

Posted vendredi 15 mars 2019, by Eva Wissenz

Yesterday I have attended a nice workshop about SDG’s organised by Finnpartnership and Beam. It’s really great that impact is spreading in Finland (...)

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"I’m enjoying being in business and I believe I’ll prosper"

Posted Monday 4 March 2019, by Lorin Symington

Meet Janet from SmartUp Factory Gulu Hub in Uganda. Janet was one of the most energetic participants of our solar entrepreneurship education (...)

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Our Experience with +Impact by Danske Bank

Posted Monday 18 February 2019, by Eva Wissenz

Since a few months we are part of the +impact platform created by Danske Bank and we wanted to share our experience with that. Many tools and (...)

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Announcing GoSol - UC Berkeley MDP Collaboration

Posted Friday 15 February 2019, by Urs Riggenbach

We are happy to announce the start of a collaboration with the MDP program at UC Berkeley, California. UC Berkeley’s Master of Development (...)

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GoSol Solar Training Highlights

Posted Tuesday 12 February 2019, by Lorin Symington

We’re happy to share with you this video which shows some great moments from the Solar Entrepreneurship Training we conducted in Uganda with Plan (...)

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GoSol Evening Reception at Autodesk Gallery
San Francisco, February 25th 2019

Posted Wednesday 6 February 2019, by Urs Riggenbach

GoSol & Autodesk Foundation invite you to join us for refreshments and learn about GoSol’s solar concentrators developed to empower millions (...)

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Starting in the Philippines with Carbon Cycle

Posted mercredi 6 février 2019, by Eva Wissenz

All the team is very happy to announce our new project in the Philippines with CarbonCycle, a recycling company and a renewable energy startup (...)

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"Mirror Technology Oven: Oven uses sun’s rays"
31. January 2019 (...)

WatsUp Africa

"Mirror Technology Oven: Oven uses sun’s rays"
31. January 2019 (...)

The Inspiring Image of the Day !

Posted samedi 26 janvier 2019, by Eva Wissenz

We are happy to share this image sent by World Vision Kenya. These are solar baked buns produced and sold by our friends at Yier Ngima in Siaya, (...)

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Indigenous Suruí using the SOL5 & Dehydrator in the Amazon

Posted Saturday 19 January 2019, by Will Cleaver

The first phase of our project in Brazil with Forest Trends to empower indigenous Suruí peoples with solar thermal energy shows a great success. (...)

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7 Sustainable Development Goals made real for Eva Nangira, a young solar entrepreneur in Uganda

Posted Thursday 20 December 2018, by Lorin Symington

We’d like to introduce you to Eva Nangira, one of the youth mentors at the SmartUp Factory Tororo Hub. Eva is a very attentive student and really (...)

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Lytefire 5 in the Amazon: solar drying nuts for Suruí Indigenous People

Posted Wednesday 19 December 2018, by Will Cleaver

After building the Lytefire 5 solar concentrator and dehydrator in Cacoal, I was ready to take and install them for the Suruí people that live 3 (...)

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World Vision Suomi

"Aurinkoinnovaatio lisäsi pienyrittäjien tuloja ja työturvallisuutta Keniassa"
17. December 2018 (...)


"Auringon lämpöenergiaa hyödyntävä innovaatio lisäsi pienyrittäjien tuloja ja työturvallisuutta Keniassa"
17. December 2018 (...)

Invitation to Guest Lecture at TAMK:
Direct Solar Energy - Theory and Practice

Posted Saturday 24 November 2018, by Urs Riggenbach

This Friday November 30th, Eerik Wissenz, Co-Founder and Executive Chairman of our project has been invited to give a lecture at Tampere (...)

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Solar Forest - Evening Reception
November 27th, San Francisco

Posted Tuesday 20 November 2018, by Urs Riggenbach (educational side of Solar Fire Concentration Oy) and Forest Trends are hosting an evening reception to celebrate our partnership to (...)

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The Inspiring Image of the Day!

Posted Monday 19 November 2018, by Eva Wissenz

This is from Uganda, were Lorin has now completed the trainings of Smart Up Factory groups of young students entrepreneurs managed by Plan (...)

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Starting in Brazil

Posted Saturday 17 November 2018, by Will Cleaver

In the background of the above photo you can see Cacoal city. I’m in Cacoal building a solar concentrator and food dehydrator for the Surui people (...)

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Meeting UN Agencies in Copenhagen

Posted Tuesday 13 November 2018, by Eva Wissenz

I’m in Copenhagen at the UN procurement seminar, surrounded by people who deeply want this world to be a better place, meeting different agencies (...)

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Forest Trends

"Forest Trends and Announce New Partnership Connecting Indigenous Communities with Solar Technologies"
6. November 2018 (...) Showcase at SOCAP’18 San Francisco

Posted Thursday 1 November 2018, by Urs Riggenbach

Last week we got to showcase GoSol at the SOCAP conference in San Francisco, October 23rd to 27th, 2018. Autodesk Foundation hosted an evening (...)

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Uganda: Follow-Up and Follow-Through

Posted Friday 26 October 2018, by Lorin Symington

I’m following up & following through with our young solar powered entrepreneurs at the SmartUp Factory Tororo Hub. I’ve been receiving small (...)

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Announcing Partnership with Forest Trends

Posted Saturday 20 October 2018, by Eva Wissenz

Lytefire is landing in South America! We are very happy about our latest partnership with the organization Forest Trends and excited to start in (...)

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Transition Time for GoSol: New Video,
Scaling the Direct Solar Economy

Posted Friday 19 October 2018, by Eva Wissenz

Dear Friends, Partners, Customers and Followers, It’s an important moment for us: GoSol has achieved the Direct Solar Economy vision! By (...)

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Second Training in Uganda Completed!

Posted Wednesday 10 October 2018, by Lorin Symington

I’m happy to report that there is a new solar powered bakery business operating in Gulu, Uganda! Our two-week training course in cooperation with (...)

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Let there be Solar Fire!

Posted Tuesday 25 September 2018, by Lorin Symington

I’m now well into the training here in Gulu, Uganda, training entrepreneur students from the Smart Up program set by Plan International. The (...)

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Solar training in Uganda: Happy Future Entrepreneurs!

Posted Tuesday 18 September 2018, by Lorin Symington

Two weeks ago I arrived to Tororo, Uganda, to a warm welcome from the Plan International and SmartUp Factory teams. My mission was to train (...)

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Plan International’s Clip after a day of Educational Training

Posted Wednesday 5 September 2018, by Urs Riggenbach

Watch this very first video of entrepreneurs getting trained at Smartup Factory in Uganda to run solar bakeries with our SOL5! It’s great to see (...)

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GoSol’s full vision starting in Uganda
with Plan International

Posted Tuesday 4 September 2018, by Eva Wissenz, Lorin Symington

Since the very beginning, the way we see it at GoSol is that we must deliver an efficient and powerful solar concentrator, and a training to (...)

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Longan, a Vietnamese fruit that could go solar

Posted Saturday 1 September 2018, by Trân Ngô

In her previous post, Tran Ngo, our Junior Project Manager, shared about Vietnamese SME’s that could greatly benefit from GoSol solar (...)

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Can Lytefire be useful in South East Asia?

Posted Thursday 30 August 2018, by Trân Ngô

Sponsored by our partner Autodesk Foundation, our Junior Project Manager is just back from her field trip to Vietnam for the second phase of the (...)

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Video: A Solar Bakery Run by Women in Tanzania

Posted Monday 23 July 2018, by Eva Wissenz

We are thrilled to share this film showing how these Tanzanian Entrepreneur Women are using our SOL5 technology to run their bakery. Listen to (...)

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Announcing Partnership with Plan International Finland and SmartUp Factory programme in Uganda

Posted Friday 13 July 2018, by Urs Riggenbach

In partnership with Plan International Finland and Plan International Uganda, we are starting a new cooperation in Uganda providing our SOL5 (...)

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Farmers Days in Kenya

Posted Monday 25 June 2018, by Eva Wissenz

On June 19th, World Vision Kenya presented the SOL5 oven at Misire Afmaga group in presence of 350 people, including many (...)

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This was AU London 2018

Posted Friday 22 June 2018, by Urs Riggenbach

This week Eerik and I got to attend the Autodesk University conference and Impact Summit in London. Autodesk University brings together industry (...)

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Autodesk Labs

"Here Comes the Sun: and the Autodesk Foundation Working Together"
12. June 2018 (...)

Greening the Blue in Kenya

Posted Friday 8 June 2018, by Eva Wissenz

World Environment Day was celebrated on June 5th in Kisumu thanks to our cooperation with World Vision. About 500 persons attended the event. (...)

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In Kenya, rural solar entrepreneurs share on SOL5

Posted Tuesday 29 May 2018, by Lorin Symington

We’re pleased to bring you the latest footage from our end user entrepreneurs in Western Kenya. Our partners at World Vision Kenya asked the (...)

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Back in San Francisco, Interviewing Near Future Summit
and Autodesk on Sustainability and Impact

Posted Monday 21 May 2018, by Urs Riggenbach

Interview with Zem Joaquin, founder of Near Future Summit as she mentions her favourite quote by Bill McDonough: “We need to love all children of (...)

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Business Daily Africa

"Kisii group bakes livelihood making banana bread, buns"
14. May 2018 (...)

Showcasing the SOL5 at Near Future Summit

Posted Friday 11 May 2018, by Urs Riggenbach

Today we had an amazing showcase of our SOL5 at Near Future Summit! Everyone got to experience the power of the sun, snack some tasty solar (...)

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Solar Baking Demo at Pier 9, California

Posted Friday 4 May 2018, by Urs Riggenbach

Today we did a solar bake at Autodesk’s Pier 9, as part of our preparation for next week’s Near Future Summit. A curious crowd of people stopped by (...)

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Our Californian Solar Concentrator turns One Year Old!

Posted Thursday 3 May 2018, by Urs Riggenbach

The SOL5 solar concentrator we built during our Impact Residency at Pier 9 last year just turned 1. It was safely tucked away in storage taking (...)

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GoSol Showcasing at Near Future Summit, California

Posted Tuesday 1 May 2018, by Eva Wissenz

We are very happy to announce our participation in this year’s Near Future Summit. Thanks to Autodeks’s support, we’ll be showcasing our SOL5 unit (...)

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Finland-Vietnam IPP program selecting SolarFire/GoSol again

Posted Monday 30 April 2018, by Eva Wissenz

Another recent reason to share happiness is that we have been selected for the second phase of VMAP+, a program from Finnish Innovation (...)

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Announcing Partnership with TAMK

Posted Friday 27 April 2018, by Urs Riggenbach

Tampere University of Applied Sciences is a higher education institution oriented towards working life and RDI co-operation. Their strengths are (...)

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Autodesk Foundation renewing support for 2018

Posted Thursday 26 April 2018, by Eva Wissenz

Last February, Autodesk Foundation team visited 2 groups of entrepreneurs in Kenya and they were fully convinced by the impact of the SOL5. On (...)

Read article Launched!!!

Posted Tuesday 24 April 2018, by

It’s been a great experience designing the new site and we’re super excited our new website is now launched. For longterm followers I (...)

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Farmbiz Africa

"Local youth group reports saving on baking costs by using sunlight"
31. March 2018 (...)

Demand @ASME

"Design for a warming world - How the products we use and buildings we inhabit are designed plays an instrumental role in climate change"
12. March 2018 (...)

Update from Kenya projects: Training Entrepreneurs

Posted Friday 23 February 2018, by Lorin Symington

Last week, members from all the GoSol projects participated in a capacity building training session on Village Savings and Loans Methodology (...)

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"The Finnish Solar Fire Concentration is testing solar energy technology in Africa that is suitable for small-scale entrepreneurs. "
9. February 2018 (...)

Update from Musoma, Tanzania

Posted Thursday 1 February 2018, by Eva Wissenz

After three months of rainy weather, the sun is back in Musoma and Alpha Women’s group is back with delicious solar baked breads! We’ve just got (...)

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"Suomalainen Solar Fire Concentration testaa Afrikassa pienyrittäjille sopivaa aurinkoenergiatekniikkaa"
1. February 2018 (...)

Wärtsilä’s video introducing our project

Posted Thursday 18 January 2018, by Eva Wissenz

After a year of cooperation in East Africa, Wärtsilä Corp. is promoting our initiative in their own words. Watch their video presenting our work (...)

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Video: Impact Residency at Autodesk Pier 9

Posted Tuesday 19 December 2017, by Urs Riggenbach

Watch how Autodesk Foundation and Pier 9 supported this year on our path to design, develop and spread our entrepreneurial solar (...)

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Flagship video of projects in Kenya and Tanzania

Posted Tuesday 31 October 2017, by Eva Wissenz

After a year of operation with support of our sponsor and with our local partners, we are happy to present our achievements in Kenya and (...)

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Wärtsilä Twentyfour7 Magazine

" sparks solar entrepreneurship in East Africa"
11. October 2017 (...)

Very dynamic solar bakers in Tanzania

Posted Tuesday 10 October 2017, by Heikki Lindfors

Buy what’s available, refine it, sell it for profit. Do it over and over again and support your family and community. This seems to be the (...)

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Inclusive Business Hub

" and Weconomy are a pioneering the inclusive business space."
9. October 2017 (...)

GoSol speaks at Autodesk University

Posted Wednesday 4 October 2017, by Urs Riggenbach

Our Executive Chairman, Eerik Wissenz, was a speaker invited to the last Autodesk University in Cape Town, South Africa, on September 7th and (...)

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Global Resource Alliance and GoSol in Tanzania

Posted Wednesday 27 September 2017, by Heikki Lindfors

Global Resource Alliance (GRA) is a small international NGO located in Musoma, Tanzania. They work on issues of orphan care, water supply, (...)

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The First Solar Bakery in Tanzania

Posted Sunday 10 September 2017, by Heikki Lindfors

Gosol arrived to Tanzania in June 2017, with the goal to replicate the success of the SOL5 solar concentrators that they had in Kenya and other (...)

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Landing in Tanzania: Butiama Environmental Expo

Posted Monday 4 September 2017, by Heikki Lindfors

When GoSol arrived in Tanzania in May 2017, the goal was to replicate the success our SOL5 has in Kenya among the local entrepreneurs. With (...)

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Fish dehydrated with solar energy at Bao Beach, Kenya

Posted Monday 28 August 2017, by Lorin Symington

Food dehydration is an important part of food security and solar thermal tech is the perfect energy source to power food dehydration. In (...)

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Global Ressource Alliance: Our Partner in Tanzania

Posted Tuesday 8 August 2017, by Eva Wissenz

After a successful mission in Kenya, working with World Vision Finland and World Vision Kenya, and with sponsorship from Wärtsilä, we have piloted (...)

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Makali News

"Watanzania kunufaika na gosol; unaweza kuangalia picha na matukio yote katika semina hiyo"
6. July 2017 (...)

CLEO 24 News

"Video na picha katika matukio tofauti:watanzania tumieni fursa zilizopo kuepuka uharibifu wa mistu"
4. July 2017 (...)

1 Year After: Expanding Solar Bakery in Kenya

Posted Thursday 29 June 2017, by Eva Wissenz

Thanks to Wärtsilä, our founding sponsor, we were back to Kenya, collecting a lot of data after 1 year of almost daily use of the SOL5 Oven by (...)

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Yier Ngima - Solar Peanut Butter

Posted Thursday 8 June 2017, by Urs Riggenbach

In this video we’re back at the Yier Ngima cooperative in Kenya, to follow up on their feedback after using the Sol5 for a (...)

Read article at Maker Fair 2017

Posted Tuesday 23 May 2017, by Urs Riggenbach

Last weekend had a booth at Maker Fair Bay Area, sharing about our impact in Kenya and inviting people to our live showcase on May 25th (...)

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Preserving the green beauty with the power of the sun

Posted Friday 19 May 2017, by Heikki Lindfors, Heikki Lindfors

Misire youth group is an agricultural community in Nyamira County in southwest Kenya. The area is known for its rich agricultural production. The (...)

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Digital Solar Oven Fabrication at Pier 9

Posted Friday 12 May 2017, by Urs Riggenbach

Over the last weeks we have worked on applying Autodesk Pier 9’s digital fabrication toolset to the Sol5 Oven. One of the great things about Pier (...)

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San Francisco Showcase, May 25th

Posted Friday 12 May 2017, by Urs Riggenbach

Come and join us for delicious solar cookies as we demonstrate the Sol5 Solar Oven at Autodesk Pier 9 on May 25th! Experience the power of solar (...)

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You make the world a better place by working...

Posted Friday 28 April 2017, by Heikki Lindfors

You make the world a better place by working together, and sometimes small local partners can provide the best value for the local people. Like a (...)

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Daily Nation

"Solar concentrator takes fuel pressure off Kenya’s forests" Print + online.
18. April 2017 (...)


"Solar project launched in Western Kenya"
18. April 2017 (...)

Presenting Results and a New Application in Kisumu

Posted Saturday 15 April 2017, by Eva Wissenz, Lorin Symington

Last Friday, on April 7th, at the World Vision Lake Region compound in Kisumu we presented 3 SOL5’s to around 65 representatives from a wide (...)

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"Finland firm targets west Kenya with solar power"
13. April 2017 (...)


"Firm introduces new solar tech in Western Kenya"
7. April 2017 (...)

Solar for All – From Vision to Reality

Posted Wednesday 5 April 2017, by Urs Riggenbach

Today we are looking back at a year of intense R&D, prototyping, piloting and partnership building in Kenya, Finland and the US, taking us (...)

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Return to Solar Oven in Kenya

Posted Tuesday 4 April 2017, by Lorin Symington

Thanks to the support of our founding sponsor Wärtsilä we are back Kenya since two months, following up on the pilot projects that we started in (...)

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World Vision

"Aurinkoenergialla pienyrittäjien bisnes kasvuun Keniassa"
3. April 2017 (...)

Africa Business Communities

"New off grid energy technology promises job opportunities for rural Kenyans"
31. March 2017 (...)

Video Blog: OCTO, Autodesk’s Digital Fabrication Lab at Pier 9

Posted Wednesday 29 March 2017, by Urs Riggenbach

Last week we had the opportunity to visit Autodesk’s OCTO lab. At the lab, Autodesk researches emerging methods of fabrication, looking at (...)

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Wärtsilä sponsors GoSol in Kenya and soon in Tanzania

Posted Wednesday 29 March 2017, by Eva Wissenz

All the team is happy to announce that Wärtsilä is now sponsoring our work to empower entrepreneurs in Kenya and in Tanzania. Check out (...)

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Solar Oven a Kakuma Refugee Camp with UNHCR, Kenya, 2017

Posted Tuesday 28 March 2017, by Urs Riggenbach

This is the first time we demonstrated the Lytefire tech inside a refugees camp, marking an important milestone on our path to make solar energy (...)

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Wärtsilä Corporation

Wärtsilä partners with Solar Fire Concentration to create business opportunities and provide clean energy to SME’s in rural Kenya.
27. March 2017 (...)

First demo of solar oven for refugees

Posted Wednesday 22 March 2017, by Eva Wissenz

Lorin Symington updates on experience in and around Kakuma refugee camp in Turkana region of Kenya. The Oven is complete and a local Turkana (...)

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Video Blog: Introducing the Electronics Lab at Autodesk Pier 9

Posted Friday 3 March 2017, by Urs Riggenbach

Apart from CNC machines, 3D printers and laser cutters we’ll be working in the electronics lab at Pier 9, which has everything needed to rapidly (...)

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Video Blog: Welcome to Pier 9!

Posted Wednesday 1 March 2017, by Urs Riggenbach

The first month at Pier 9 have gone by in a breeze. Here are some impressions from the amazing workshops at the Pier. Everything from laser (...)

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Solar Oven Landing in Refugee Camp, Kenya, 2017

Posted Monday 27 February 2017, by Lorin Symington

Our team is honoured and excited to be installing our Lytefire 5 baking system at Kakuma in Northern Kenya in the Turkana region. Trees are slow (...)

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First days at Autodesk Pier 9, San Francisco

Posted Thursday 16 February 2017, by Urs Riggenbach

It has just been a few days that Will Cleaver and Urs Riggenbach have touched down in San Francisco and started their Impact Residency at (...)

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Impact Residency Program Starting at Autodek Pier 9

Posted Thursday 2 February 2017, by Urs Riggenbach

Two of our team members just reached San Francisco, where they’ll be working at the Autodesk Pier 9 facility as part of the Impact Residency (...)

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Pure Eco India

"GoSol contributes to Kenya’s solar economy"
1. January 2017

Solar Fire at AutoDesk University

Posted Tuesday 22 November 2016, by

We just got back from the Impact Summit organized by Autodesk Foundation in parallel to AutoDesk University in Las Vegas. We participated as a (...)

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Update from Kenya: The SOL5 generates income
and supports the entrepreneurs

Posted Wednesday 12 October 2016, by Urs Riggenbach

It is one thing to build and install the SOL5 solar concentrator, but it’s another one to use it. Knowing this, we did our best to train the (...)

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Engenharia é

"Faça você mesmo painel solar para produzir energia limpa em casa"
26. August 2016 (...)

The "Effective Use" of a Solar Concentrator

Posted Tuesday 23 August 2016, by Urs Riggenbach

Effective Use One of our core design principles is aiming for "effective use." By this we mean how much solar energy is transformed into real (...)

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Predicting the Next Billion Solar Concentrators

Posted Thursday 11 August 2016, by Urs Riggenbach

Solar concentration is going to change the world, period. There, we said it. And we want to make it very clear: Solar concentration will play a (...)

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Autodesk Foundation supports GoSol / Solar Fire

Posted Wednesday 3 August 2016, by Eva Wissenz

Our team is very happy to announce that the Autodesk Foundation (USA) has committed to support our work with a USD 100,000 grant and a very (...)

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SolBook: Preparing the Next Generation
of Solar Builders and Entrepreneurs

Posted Tuesday 2 August 2016, by Urs Riggenbach

The SolBook is a resource for integrating’s empowering knowledge into school’s curricula. It will contain lessons on the physics, (...)

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World Vision’s video presenting our work in Kenya

Posted Tuesday 28 June 2016, by Eva Wissenz

In this beautiful video you are invited to understand fully what we have achieved in Kenya with the cooperation of Weconomy and World Vision (...)

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Solar Cooking Chef in New York!

Posted Monday 27 June 2016, by Eva Wissenz

More than a year after we gave a Sol4 to the Teaching Garden of GrowNYC, on Governor Island, it still works well and is being used regularly! (...)

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Radio France Internationale

Radio show "C’est pas du vent" by RFI featuring Arnaud Crétot, CTO of
19. June 2016 (...)


За допомогою сонячних концентраторів в Кенії печуть хліб і виготовляють арахісове масло
2. June 2016 (...)


"GoSol: concentratori solari per cucinare nelle comunità povere"
1. June 2016 (...)


"Proyecto solar recientemente realizado en Kenia"
1. June 2016 (...)

Building the Direct Solar Economy

Posted Thursday 26 May 2016, by Urs Riggenbach

Discover what has been accomplished in Kenya in partnership with Weconomy, Suomen World Vision and World Vision Kenya. It’s so powerful to see (...)

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"GoSol is building the direct solar economy with its solar concentrator"
26. May 2016 (...)

Meeting the Kopitge Bakers in Kenya
and First Solar Bread Testing

Posted Monday 2 May 2016, by Will Cleaver

We are proud to be able to help the Koptige Bakers by providing them with the knowledge to build and maintain a solar powered bakery that they (...)

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Thank YOU!

Posted Sunday 1 May 2016, by Eva Wissenz

We are thrilled!! Our #FreeTheSun video presenting our project, tech and spirit has reached 46 749 views on Youtube... Wow!! Let’s hope the coming (...)

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Building Sol5 Solar Concentrators in Kenya

Posted Wednesday 27 April 2016, by Will Cleaver

Our best solar oven and roaster builder Lorin Symington has been in Kenya for a few weeks making our Sol5 solar concentrator to roast peanuts and (...)

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Les Vagabonds de l’énergie reprennent la route !

Posted Monday 18 April 2016, by Eva Wissenz

Souvenirs, souvenirs... Il y a quelques années, Robin Deloof et Arnaud Crétot terminaient leurs études et avaient décidés de faire un périple autour (...)

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GoSol - What We Do and Why

Posted Friday 15 April 2016, by Will Cleaver

At GoSol team spirits means a lot to us. Since a few years now, no matter if we work together from different corners of the globe or not, no (...)

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Two Inspiring Events Upcoming in Helsinki

Posted Friday 15 April 2016, by Eva Wissenz

"Are you “Value Conscious” and “Values Conscious”? Do you want to learn how to do more with less? Do you want to know how to innovate under resource (...)

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Meeting a Courageous Kenyan Women’s Community

Posted Wednesday 13 April 2016, by Eva Wissenz

Our whole team is thrilled to be watching Lorin’s first footage from Kenya because these women are the reason we all joined this amazing solar (...)

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GoSol on the road to Kenya

Posted Friday 1 April 2016, by Eva Wissenz

In this vblog, Lorin Symington is sharing his concerns, determinations and... tiredness before leaving to Kenya for our project in cooperation (...)

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Starting in Kenya with World Vision

Posted Tuesday 29 March 2016, by Eva Wissenz

Almost all our team was in Paris to meet with our partners, Fondation Rexel and Fondation Deloitte, and briefed Lorin before his departure to (...)

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Lytefire (former Sol4) Save Trees

Posted Wednesday 9 March 2016, by Lorin Symington

After moving to the city for school, Nayazim Raouzi Peskala is thinking about green ways to build businesses back home. Hear him share his (...)

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First Replication of Sol4 Model in Palestine

Posted Tuesday 8 March 2016, by Urs Riggenbach

Welding shop in Palestine Moutasem returned to his home country a few months ago with nothing but a vision: To make sustainable (...)

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"Aprende cómo hacer tus propios paneles solares térmicos"
21. February 2016

The Greenest Post

"Aprenda a fazer seu próprio painel solar para produzir energia limpa em casa"
18. February 2016 (...)

Pensador Anônimo

"...a organização GoSol surge com o objetivo de democratizar os painéis solares pelo mundo"
9. February 2016 (...)

In Nigeria with SF Green Resources

Posted Thursday 4 February 2016, by Eva Wissenz

We are so happy to announce the beginning of the project in Nigeria with our partner SF Green Resources ltd. Abiodun Alabi and Funsho Folabi are (...)

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Razões Para Acreditar

"Organização ensina como construir seu próprio painel solar para democratizar energia limpa"
4. February 2016 (...)


"Startup-yritys - köyhyyttä vastaan, bisneksen keinoin"
28. January 2016 (...)


"GoSol releases first free solar concentrator construction guide"
17. January 2016 (...)

Drying Fruits With Solar?

Posted Thursday 14 January 2016, by Lorin Symington

After seeing the Sol4 in action at The Innovation Hub in South Africa, student of entrepreneurship Bobofranz Mafendela was excited to share with (...)

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Happy New Year!

Posted Wednesday 6 January 2016, by Urs Riggenbach

Read article

Lyte (exSol4) Demo to Entrepreneurs & Students

Posted Thursday 31 December 2015, by Lorin Symington

Together with our #FreeTheSun partners in South Africa, Sunfire Solutions, we demonstrated the Sol4 solar concentrator to students and (...)

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Empresa ajuda pessoas a criarem seus próprios painéis solares
29. December 2015 (...)

Post COP21 Ecology Strategy Review

Posted Sunday 27 December 2015, by

We are still in the magic of Christmas and I think it’s a good time to reflect on whether Santa will grant the COP 21 wishes. As all children (...)

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Conheça a empresa que ajuda pessoas a criar seus próprios painéis solares
22. December 2015 (...)

The COP21 Agreement: A Letter to Santa

Posted Thursday 17 December 2015, by

The COP21 agreement is filled with all sorts of legalese that may be difficult for the average person to understand. A great deal of press has (...)

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Como criar os teus próprios painéis solares.
14. December 2015

Early Adopter Participates in Startup Program

Posted Wednesday 9 December 2015, by Urs Riggenbach

Our early adopter Moutasem Hassan took part in the cewas Middle East startup course in Palestine. Moutasem (front-right) wants to take (...)

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Conheça a empresa que ajuda pessoas a criar seus próprios painéis solares.
4. December 2015 (...)

Backyard Baking in Joburg

Posted Tuesday 1 December 2015, by Lorin Symington

Here’s a fun little video of GoSol’s Lorin Symington baking with the Sol4 + oven in Johannesburg. Whether you bake mountains of muffins, scads of (...)

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Fifth Element

"Самодельный солнечный концентратор из Финляндии"
1. December 2015

Aaron Langa from Forum4Change

Posted Wednesday 25 November 2015, by Lorin Symington

While at the Siyakhana gardens, we met up with Aaron Langa, a serial social entrepreneur and longtime advocate for the rights of the poor. He’s (...)

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Deloitte Foundation becomes a sponsor

Posted Monday 23 November 2015, by Eva Wissenz

We are happy and honored to announce that the Fondation d’entreprise Deloitte is becoming a new supporter of the (...)

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Siyakhana vBlog

Posted Friday 20 November 2015, by Lorin Symington

The Wits Siyakhana Initiative for Ecological Health and Food Security is a 2 hectare garden and eco-center tucked away in a Johannesburg city (...)

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Meeting the Yier Ngima Support Group in Kenya

Posted Tuesday 17 November 2015, by Eva Wissenz

World Vision is one of the biggest NGOs in the world, in the field every day to support compassionate, educational and sustainable actions. (...)

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Rorisa At the Innovation Hub

Posted Monday 16 November 2015, by Lorin Symington

While we were at The Innovation Hub in Pretoria, South Africa, we got a chance to talk with some of the students there and we asked them what (...)

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Wandie’s Place - Going Solar?

Posted Thursday 12 November 2015, by Lorin Symington

Recently, we teamed up with restauranteur Wandile Ndala, owner of Wandies Place, the most famous township restaurant in South Africa. Wandies has (...)

Read article and SunFire Solutions on CCTV’s "Africa LIVE"

Posted Monday 2 November 2015, by Urs Riggenbach

We blogged earlier on our solar showcase at Siyakhana where we hosted a film crew from CCTV Africa doing a piece on renewable energy and (...)

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Solar Energy and Food Gardens Are a Natural Fit

Posted Friday 30 October 2015, by Lorin Symington

Community gardens are dynamic, important spaces that improve food security, increase access to nutritious and sustainably grown foods, and raise (...)

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10 Km from Civilization - the GoSol Solution

Posted Tuesday 27 October 2015, by Eva Wissenz

We are very honoured and happy to publish this blog post from Gabriel Ojobo, Country Manager at SF Green Resources Nig. Ltd., our partner for our (...)

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CCTV Africa

"Social Entrepreneurs Create a Solar Cooker in South Africa" (Video)
22. October 2015

Baking in Johannesburg

Posted Monday 19 October 2015, by Lorin Symington

After completing the Sol4, I started to test the oven we’ve built at SunFire Solutions. First thing in the morning I decided to bake scones. Did (...)

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Inspiring Innovation in Pretoria

Posted Monday 12 October 2015, by Lorin Symington

The Sol4 is done, and the oven won’t be far behind! Excited to get out and show off, we presented the solar concentrator to the students of the (...)

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Pensamento Verde

"Empresa ensina pessoas a construírem seus próprios painéis solares"
10. October 2015 (...) in the Johannesburg Workshop

Posted Monday 5 October 2015, by Lorin Symington

Johannesburg is a great place to build. South Africa is the industrial heart of Southern Africa and JHB is where the action is. In the industrial (...)

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Eco Inventos

"Como construir tu propio concentrador solar con la guía gratis de GoSol"
5. October 2015

"GoSol: il solare a concentrazione fai-da-te che porta energia pulita alle popolazioni povere del mondo"
2. October 2015 (...)

"Come costruire un forno solare: ecco la guida di GoSol"
2. October 2015 (...)

Off Grid Quest

"Build your own solar concentrator at home with GoSol’s free DIY guide"
2. October 2015 (...)

Green Life

"GoSol - солнечные печки для малого бизнеса"
2. October 2015 (...)


"GoSol - солнечные печки для малого бизнеса"
2. October 2015 (...)

Green City

" Концентратор своими руками "
2. October 2015

Energy Fresh

"Создайте свой собственный солнечный концентратор"
1. October 2015


"Создайте свой собственный солнечный концентратор для дома с бесплатным руководством от GoSol"
1. October 2015 (...)

Energia Rinnovabili

"Forni solari, con la guida di GoSol lo costruisci da solo"
1. October 2015 (...)


"GoSol випустили безкоштовну інструкцію по створенню сонячного концентратора"
1. October 2015 (...)


"Build your own solar concentrator at home with GoSol’s free DIY guide"
30. September 2015 (...)


"GoSol releases first free solar concentrator construction guide"
29. September 2015 (...)

Solar and the Meaning of Life

Posted Monday 28 September 2015, by

We have many ecological and social problems. Some say we’re doomed. Solar is expanding exponentially. Some say everything will be fine. We (...)

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Starting in South Africa with SunFire Solutions

Posted Sunday 27 September 2015, by Lorin Symington

Thanks to the ongoing success of our #FreeTheSun campaign and the determination of SunFire Solutions, we’re finally on the ground in RSA. We’ll be (...)

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Rexel Foundation becomes a Sponsor

Posted Wednesday 16 September 2015, by Eva Wissenz

We are proud to announce that the Rexel Foundation for a Better Energy Future is reinforcing their support for the initiative by (...)

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Solar Eggplant at GrowNYC

Posted Tuesday 15 September 2015, by Urs Riggenbach

The guys at GrowNYC just cant be stopped. Another tasty solar snack directly harvested and cooked in their solar (...)

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Solar Breakfast at Surface in Hamilton, Canada

Posted Friday 4 September 2015, by Lorin Symington

I’ve just completed another Sol4 model based on the most recent early-adopter construction plans here at Surface Design Space in Hamilton, (...)

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Connecting Builders: Switzerland meets Togo

Posted Thursday 27 August 2015, by Urs Riggenbach

Recently we connected the two early adopters Kurt Baumann, who built a Sol4 with his school-class in Switzerland and Boris Awume from Togo, whom (...)

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UK NHS Secretary Jean Bell on ’Why’

Posted Sunday 23 August 2015, by Urs Riggenbach

Jean Bell is secretary at UK’s National Health Service NHS. Having followed the development of GoSol and Solar Fire, I think solar (...)

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Solar Popcorn and Greens at GrowNYC

Posted Tuesday 18 August 2015, by Lorin Symington

Earlier this year we built a Sol4 solar concentrator at SI Makerspace and installed it at the Teaching Garden of GrowNYC. Shawn Connell, staff (...)

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Boris Awume, Entrepreneur from Togo

Posted Friday 7 August 2015, by Urs Riggenbach

Boris Awume is our most recent early adopter. He is an entrepreneurially-minded Togolese working in Switzerland but excited to make new things (...)

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Sortir du nucléaire

Article on in the french magazine Sortir du nucléaire. "GoSol, l’entreprenariat solaire accessible aux plus pauvres." Read it on our blog.
1. August 2015 (...)

Engineering Students Complete Solar Concentrator in Pakistan

Posted Friday 31 July 2015, by Urs Riggenbach

The engineering students at Air University completed their final project of a hybrid solar-biomass system. Their model used our Sol4 solar (...)

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Solar Energy for Palestine

Posted Saturday 25 July 2015, by Urs Riggenbach

After studying abroad and working in the solar industry in the US, Moutasem Hassan is ready to return to his conflict-ridden home country and (...)

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First Sizzle with the Sol4 in Switzerland

Posted Monday 20 July 2015, by Urs Riggenbach

After setting up the solar concentrator in the school’s yard, the students had to calibrate the mirrors. Soon enough the vegetables, burgers and (...)

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Hybrid Power Generation at Air University, Islamabad

Posted Friday 17 July 2015, by Urs Riggenbach

Muhammad Hassaan is a 23 year old engineering student from Pakistan. For his final project, Muhammad and his two other teammates Zia Bakht Butt (...)

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Swiss Schoolclass is Building a Sol4

Posted Monday 13 July 2015, by Urs Riggenbach

Kurt Baumann is a handicraft teacher in Langenthal, Switzerland. He is our first MultiPass supporter, and wants to build a solar concentrator as (...)

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L’entreprenariat solaire accessible aux plus pauvres

Posted Monday 6 July 2015, by Arnaud Crétot

L’article ci-dessous est la version complète d’un article de deux pages qui sera publié dans la revue du réseau "Sortir du nucléaire" cet été 2015 : (...)

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Sol4 Guide Ready for Early Adopters

Posted Sunday 5 July 2015, by Urs Riggenbach

We’ve just finished the first version of the Sol4 guide and now all our Early-Adopters get to download it and start building right (...)

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De l’énergie solaire en «do it yourself» pour les pays du sud.
26. June 2015 (...)

Radio France Internationale

"C’est pas du vent", a radio program about the environment and solutions. Our CTO, Arnaud Crétot, presents the campaign and constructions guides.
25. June 2015 (...)

United World College Mahindra

"To live the UWC mission of a sustainable future is challenging, but Urs Riggenbach from Switzerland is determined to change the way we use technology to help build a sustainable future." - Portrait of Urs Riggenbach and (...)
18. June 2015 (...)


"Solar thermal is limited firstly by the availability of sunlight, secondly by useable surface area upon which to place solar concentrators and lastly by the imagination." Interview with Lorin (...)
16. June 2015 (...)


"L’énergie solaire au service du développement."
13. June 2015

Faites le plein d’avenir

"GoSol, une entreprise sociale basée en Finlande lance une campagne de financement participatif pour permettre à des artisans du monde entier de bénéficier gratuitement..."
11. June 2015 (...)

Mackenson’s Solar Pizza

Posted Tuesday 9 June 2015, by Lorin Symington

Mackenson, the first technician in Haiti is back on the blog with a message to all our viewers and potential supporters: (...)

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"Il sole è un bene di tutti, approfittiamone per combattere declino ambientale e povertà nel mondo. Non si tratta di una visione naïve, ma di un traguardo fattibile."
20. May 2015

Non Sprecare

"Forni solari, la campagna di crowdfunding “Free the sun” per un cambiamento globale" - The "Free the Sun" crodwfunding campaign for a global change.
20. May 2015 (...)

Global Alliance for Clean Cookstoves

"to break the capital cost barriers to small scale use of solar concentration for household cooking, small commercial use,..."
20. May 2015 (...)

18eLode - Il giornale degli universitari

A portrait of Elisabetta Gaglione of GoSol / Solar Fire, in Italian, and a section featuring the Free The Sun campaign.
17. May 2015

Baking Cake in Haiti

Posted Thursday 14 May 2015, by Lorin Symington

We met Fabienne Dorlean through Robillard Louino, a young leader from Cite Soleil in Port-au-Prince, Haiti. She’s a graduate from a hotelery (...)

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Terra Eco

"Du solaire pour booster l’artisanat du Sud" - Solar energy to boost artisanal activity in the Global South.
12. May 2015,59703.html

Agence Ecofin

"GoSol à la rescousse des artisans africains pour l’exploitation des ressources solaires"
12. May 2015 (...)


"Free the Sun: energia solare accessibile a tutti, in ogni parte del mondo" - Accessible solar energy to everyone everywhere in the world.
7. May 2015 (...)

Energie Rinnovabili

"Ridurre l’Impatto del Cambiamento Climatico e le Barriere d’Accesso al Solare" - Reducing climate change and facilitating access to solar energy.
7. May 2015 (...)

Solar Bakery: ad Haiti si fa il pane con il sole.
7. May 2015

Il Prof. Echos

"Là dove l’energia del sole rende felici " - Where solar energy makes people happy.
2. May 2015 (...)

UBLU Umweltberatung Luzern

"Sonnenenergie nutzen geht auch ohne Photovoltaik- oder Solaranlage. Aus Spiegeln lassen sich hocheffiziente, autark funktionierende Öfen bauen und wer hat nicht als Kind schon mal mit einer Lupe ein Feuer (...)
28. April 2015 (...)

Rexel Foundation (Paris) is supporting us

Posted Monday 27 April 2015, by Eva Wissenz

We are honored and happy to count the Rexel Foundation among our partners for the campaign and to be part of the Rexel Foundation Platform for (...)

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SOS Energie, Burkina Faso

Posted Sunday 26 April 2015, by Eva Wissenz

Vincent Nikiema, the President of SOS Energie Burkina Faso (SOSEB), is happy to support our campaign and we hope we can start together some field (...)

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GoSol campaign featured among Tesla battery, Solar Impulse airplane, low-cost LEDs and other great solutions.
26. April 2015

GrowNYC Goes Solar

Posted Thursday 23 April 2015, by Lorin Symington

We’re so happy to introduce our new partner GrowNYC, a non-profit which improves New York City’s quality of life through environmental programs (...)

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Jeunes Verts Togo

Posted Wednesday 22 April 2015, by Eva Wissenz

The Jeunes Verts Togo are a youth association created in December 2009 with currently more than 500 members (students, youths, and women from the (...)

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"GoSol could be the key to no-cost solar heat around the world" - Inhabitat - Sustainable Design Innovation, Eco Architecture, Green Building
22. April 2015 (...)

Meeting Patricia Mc Ardle, the Solar Lady

Posted Tuesday 21 April 2015, by Eva Wissenz

I’ve met Patricia McArdle a few years ago through her novel Farishta, where she shares about her experience in Afghanistan as a diplomat and the (...)

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BioEcoGeo - Cucinare col sole

"La missione di Solar Fire Concentration è rendere l’energia solare sostenibile accessibile a tutti, soprattutto alle piccole e medie industrie dei paesi ’emergenti’"
20. April 2015


"Here’s how solar concentrators could provide renewable cooking technologies for the developing world"
20. April 2015 (...)

Featured by Tekes

Tekes is the Finnish Funding Agency for Technology and Innovation.
17. April 2015 (...)

SunFire South Africa Supports the #FreeTheSun Campaign

Posted Thursday 16 April 2015, by Urs Riggenbach

Crosby Menzies, founder of SunFire Solutions in Johannesburg, South Africa, is supporting our #FreeTheSun campaign. It’s an important partner for (...)

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PassWord Show, Radio Resonance

The Password radio program is the UK’s only regular-hour long foray into the world of science and technology and not only tells you about the latest developments in the area but what those technologies mean to (...)
16. April 2015


"[] aims to kick off a global wave of solar entrepreneurship with free construction guides for building high-powered solar concentrators with local materials"
16. April 2015 (...)


SciDev.Net is the world’s leading source of reliable and authoritative news, views and analysis on information about science and technology for global development.
14. April 2015 (...)


Company profile by the Finnish think tank Kalevi Sorsa Säätiö.
6. April 2015 (...)

World Vision and the Weconomy Program

Posted Saturday 4 April 2015, by Eva Wissenz

Juha-Erkki Mäntyniemi, COO and Innovation Director, is presenting shortly the Weconomy program powered by the NGO World Vision. We plan a (...)

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Finnish Cleantech Delegation to San Francisco and L.A.

Posted Monday 30 March 2015, by Urs Riggenbach

Last week I visited California as part of a Finnish cleantech delegation led by Ms. Lenita Toivakka, Minister for European Affairs and Foreign (...)

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BioEcoGeo Magazine

"Nel quinto anniversario del terribile terremoto ad Haiti, è sorta la prima “Solar Bakery” grazie ad una start up finlandese costituita da un team internazionale."
30. March 2015

Baking Experiments in Haiti

Posted Friday 20 March 2015, by Lorin Symington

Here, our budding entrepreneurs Mackenson and Island are preparing more treats in the 3m2 solar oven on the roof of Haiti Communitere, in (...)

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Boond - Every Drop Makes a Difference

Posted Tuesday 17 March 2015, by Eva Wissenz

We are proud and honored to announce a cooperation with Rustam Sengupta, Founder and CEO of Boond for the crowdfunding campaign we are launching (...)

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Interview with Alan Bigelow, PhD, Columbia University

Posted Wednesday 4 March 2015, by Urs Riggenbach

Alan Bigelow is a physicist that develops optical and ion-beam technologies at Columbia University. Passionate about solar energy and what it can (...)

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Solar French Fries

Posted Monday 2 March 2015, by Eva Wissenz

Funny... I’ve found this oooooold video of Solaire absl (a non-profit association based in Belgium) cooking French Fries with our solar (...)

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Mackenson Has Seen the Future, the Future is GoSol!

Posted Wednesday 25 February 2015, by Lorin Symington

Meet Mackenson, the first technician in Haiti and a dear friend of mine. He’s a good man with a kind heart who has lived a difficult (...)

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Arnaud Crétot’s Interview for Libres! Le Film

Posted Tuesday 24 February 2015, by Urs Riggenbach

Our thermal engineer Anaud Crétot talks about our energy future in this interview for Libres Le Film (in French). Arnaud Crétot, ingénieur (...)

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Staten Island Cookoff with GrowNYC

Posted Monday 16 February 2015, by Urs Riggenbach

See the results of Lorin’s training and demonstration day with GrowNYC at the Staten Island Makerspace.

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The New Global East Africa Event

Posted Thursday 12 February 2015, by Urs Riggenbach

Yesterday we attended an event hosted by The New Global at Aalto University. Solar entrepreneurs Patrick Ngowi of Helvetic Solar and Rustam (...)

Read article International Team in Tampere, Finland

Posted Tuesday 3 February 2015, by Eva Wissenz

Meet the team in this short film by French filmaker Basile Remaury.

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Grilled Cheese in the Freezing Cold!

Posted Tuesday 3 February 2015, by Lorin Symington

Saturday was freezing cold (-10°C / 14°F) but Lorin & co. were cooking up a storm at the Staten Island Makerspace in New York. Want to check (...)

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Concentrator Ready at Staten Island Makerspace

Posted Monday 26 January 2015, by Urs Riggenbach

Lorin has finished building one of’s solar cookers in record time! Have a look at his video introducing some of the people at the (...)

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"Libres!" Trailer with English Subtitles

Posted Sunday 25 January 2015, by Eva Wissenz

Energy is very closely connected to freedom. And private economy and freedom are contradictionary in many ways. So bring back the energy to (...)

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"Cocina solar en Haití" Article about our first solar bakery in Haiti. January 2015.
25. January 2015

Les Vagabonds de l’Énergie on Samsø Island

Posted Wednesday 21 January 2015, by Urs Riggenbach

Yesterday Arnaud Crétot from France joined us in Finland. Arnaud is a thermal engineer with keen interest in the global renewable energy (...)

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Arnaud Crétot Joins Us from France

Posted Wednesday 21 January 2015, by Urs Riggenbach

We are very excited to have Arnaud Crétot from France over with us in Finland. Now, for the first time, the team is all in one place (Well, except (...)

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"Una panadería solar en Haití" Article about our first solar bakery in Haiti.
20. January 2015

Virtual Pro

"Panadería Solar Lanzado en Haití " Article about our first solar bakery in Haiti.
20. January 2015 (...) at Staten Island MakerSpace, NYC

Posted Monday 19 January 2015, by Urs Riggenbach

Progress update from Lorin Symington’s quest to build a solar concentrator in NYC. Lorin is working with the Staten Island MakerSpace in (...)

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Mackenson and Guerline baking at Haiti Communitere

Posted Friday 16 January 2015, by Lorin Symington

Yesterday Mackenson and Guerline baked up some delicious goodies for the fine people at Haiti Communitere. Mackenson has been experimenting and (...)

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Lorin’s Update from NYC

Posted Monday 12 January 2015, by Lorin Symington

Here’s a quick update from our technologist in the field, Lorin, who is in NYC spreading the goodness. Today marks an important day for (...)

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Meet Mackenson, the first Technician in Haiti

Posted Tuesday 6 January 2015, by Lorin Symington

It’s through Haiti Communitere that I met Mackenson. This was back in 2012 when I was checking out Haiti for a solar energy mission. He was hard (...)

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Back in Haiti and Working with the Sun

Posted Monday 5 January 2015, by Lorin Symington

The flight from Miami to Port-au-Prince is a lively one. A colourful mix of Haitians returning to their country, aid workers, missionaries and (...)

Read article Sponsors Libres! - a Great Documentary about Energy

Posted Wednesday 31 December 2014, by Eva Wissenz is proud to be a partner of the documentary LIBRES LE FILM. We are happy to be one of the 2088 supporters of this great documentary (...)

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Solar Pizzas in Haiti

Posted Monday 22 December 2014, by Eva Wissenz

The first milestone of the Haiti project: The team baked pizzas with our solar oven at Haiti Communitere. Yummy... and (...)

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First Days in Haiti

Posted Wednesday 17 December 2014, by Urs Riggenbach

Lorin Symington has reached Haiti safely after long hours of travel. He is now working with Haiti Communitere to install a solar oven in (...)

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Cooking Solar in... Finland?!

Posted Wednesday 10 December 2014, by Urs Riggenbach

"You’re a solar company, and you’re based in Finland?!" ­­­We get to hear this one a lot! This video right here should pose a big "why not!", as it (...)

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Partner Spotlight: BioSampo FREES

Posted Tuesday 6 May 2014, by Urs Riggenbach

Currently we’re building a training program specific to Solar Fire Technologies with our partner KSAO BioSampo as well as integrate the technology (...)

Read article Site has Launched

Posted Saturday 5 April 2014, by Urs Riggenbach

The whole team is proud to launch the site! Between Finland, Switzerland, UK, and Canada it’s been a great collaborative effort needing (...)

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