Blog of Urs Riggenbach

Solarpreneurs, Production, Events in Normandy and Crowdfunding Success!

Posted Friday 28 October 2022 by Urs Riggenbach.

Last week I visited Arnaud Crétot in Normandy, who runs a solar bakery powered with our Lytefire 11 Solar Oven. He’s doing great. His solar roasted café made from lentils and chickpeas has just won a trophy (Trophées de l’innovation de l’Agroalimentaire), and his bakery business NeoLoco is expanding. I’ve personally started to be addicted to Arnaud’s sustainable coffee-alternative made from local ingredients so it comes as no surprise! 😉 He’s also now fully certified as organic producer. I was joined in my visit by team member and Lead Information Officer Muriel and impact investor Susanne.

Together we also shared his tasty and nutritious solar-baked sourdough bread:

We also visited CPM Industries, our commercial partners producing and selling Lytefire 5 and 11 "Deluxe" in France. They are producing at their factory in Normandie a high quality and fully mobile version of the Lytefire adapted to the French market. Really exciting to see first-hand!

In the evening we joined an event organized by les Vagabonds de l’énergie about the topic of solar entrepreneurship, hosted by Clément Bresciani in a panel with Muriel, Arnaud, and two new solarpreneurs we have introduced we have introduced in an earlier blog post. Associations like this are playing an important role in raising awareness, especially through the educational activities they offer to schools and during public events. Learn more about the solarpreneurs here:

A few days after my return yet another amazing news: Our Crowdfunding on Ulule is a success! 102% raised of our first goal, and 3 days left to complete as much of our second milestone as possible! Joan, Hashimu and Allen are super happy to soon receive their Lytefire and start a bakery in their communities in Kenya, Tanzania and Uganda. We all touched to tears with the amazing support of almost 200 supporters that made this possible, and we now deserve a good night’s rest after the big push it has been!

Join the crowdfunder here:

The case for Lytefire to produce school meals for 64 million children

Posted Friday 3 June 2022 by Urs Riggenbach.

The issue of food security is highly relevant with the effects of climate change being further exacerbated with the multitude of political conflicts ongoing. Food prices are on the rise, and as a result malnutrition is growing, which is detrimental especially to children and youths. It is in this field where schools that provide wholesome meals to their students make a big difference in malnutrition and food security today. The World Food Programme has made it a priority to help countries implement so called School Feeding programs, and now estimates 64 million children are getting school meals in Africa, a number that has been increasing from 38 million in 2013. As we will see, Lytefire has a key role to play in helping schools implement School Feeding programs.

We have already reported on the amazing project outcomes from the schools we have empowered with Lytefire, for example with the Montessori school in Mwanza, Tanzania, baking some 400 bus for their school children on a daily basis. There are two important aspects in which Lytefire is a key to unlock School Feeding programs:

  • With Lytefire, the schools stop spending money on charcoal, firewood, LPG and electricity costs for cooking. They are producing their own buns, breads and meals, so instead of buying these, they are able to produce it themselves.
  • With our educational trainings, we create local capacity for entrepreneurship. Students, Alumni, youths and women from the community are empowered to run their own bakeries (In many cases the internal usage of the Lytefire by the schools allows for afternoon hours be used by local bakers to run their own solar income-generating activity).

Because the Lytefire pays for itself through the fuel cost savings and the increased profitability of schools running their own bakeries, kitchens and food processing, Lytefire can be a great way to facilitate schools to adopt School Feeding programs.

Group of students with Joan Arwa from the Lytefire team being trained on solar baking with the Lytefire solar ovens (background).


Last week I attended a seminar initiated by the Foreign Ministry of Finland in collaboration with Education Finland and FinCeed, where I learned about the large market of schools and how suitable our solution can be for them. Finland is seen as an expert when it comes to education, and together with the Finnish institutions part of the event we started to develop ways in which we can support the spread of Finnish innovations like Lytefire for the education sector worldwide.

If you are a school and want to benefit from Lytefire Ovens and Education, don’t hesitate to reach out to us. If you are an NGO or GO aiming for a transformational impact, we are happy to talk. Contact us

Stay tuned to our newsletter:

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+ entrepreneurs we have empowered in the last 12 months.

Visiting the training site in Uganda

As you know we have not only developed the Lytefire solar tech but also the entrepreneur-trainings to train women and youths to run their own solar businesses - with no prior experience.

The big mission we have taken on at Solar Fire, has made the last years of business development really hard for us. Awareness of solar concentration is still low vis-à-vis photovoltaics, and little focus is on solving the energy problems of the millions of entrepreneurs in low-income regions. With a truly decentralized energy source we also don’t fit the old centralized models that brought the climate and poverty crisis in the first place. But one beautiful result of our work is that we are sharing our experience with entrepreneurship and are able to provide all the key ingredients to create solar bakeries: From the Lytefire Oven to the baking skills, the entrepreneurship skills and the technical skills to maintain a Lytefire with local materials, something that fundamentally sets us apart.

Just like Solar Fire faces many challenges in scaling up, there are so many barriers our solar entrepreneurs need to overcome on a daily basis. But the basis of doing business is selling your product. To do that, yes you need a product, but you also need to have the courage to go out there and sell it. And if nobody buys, you don’t succeed.

As CEO of Solar Fire since a few months, my work is very demanding, being involved with both the delivery and acquisiton sides, keeping a bird’s eye perspective and going down to the nitty-gritty of day-to-day activities on a constant basis. We had just reached a milestone on the fundraising side and at the same time a major training program was coming to a close: It was time to jump on the opportunity to visit the projects, the entrepreneurs and see old and new team members, with 6 of them whom I would meet for the first time in real life!

So during my trip, I was able to visit one of the last training courses for a project we are delivering to our client Plan International in Tororo, Uganda.

It was a hot, sunny day, and after our bakery trainer Allan finished his first segment on making muffins (known as Queen Cakes in Uganda), the muffins were in the solar oven and our entrepreneurship trainers Callum and Hanna continued on the bookkeeping part of the training.

I’ve taken such workshops before and my body immediately reacted with a wave of tiredness as my mind wandered to the 30 other things demanding my attention at Solar Fire.

The typing noise of calculators that were handed out brought me back just 10 minutes into the session, and I noticed the strong engagement of the group. Callum asked, “Why is there more money in the account than cookies were sold?”. - A participant: “Shouldn’t we have cookies left?”- Another: “No, all cookies were sold by Sunday”. Callum: “So, clearly someone sold cookies between last Friday, brought the money into the account but did not subtract it from the inventory nor add it to the bookkeeping. You see, just now, a day after it happened it is hard to reconstruct what happens. That’s why the bookkeeping needs to be done right way. OK. Let it be a lesson and reminder for us. Let’s go into this”. …and they proceeded to figure out exactly who made the sales, and updated the accounting based on this, if you ask me, very positive problem.

Even what I would consider the most “dry” and theoretical part of the training was made engaging through the entrepreneurial reality we are creating in the short time our trainers are on-site. And it continued: As the muffins came out of the oven, the instructions were very clear: “No snacking”. I had to withstand my urge to just grab a delicious looking muffin: I asked about the rule and it is something they developed through the trainings: If you make it clear that every muffin snacked is a muffin not sold and a direct loss for the bakery, people’s business mindset is honed and put in place from the beginning.

Now we were inside a large compound in a hall where the training was conducted, outside on the main road construction works were happening. I would say a 10 minute walk from the construction site. Yet suddenly a man enters the building and asks if he can buy some Queen Cakes. A sale happened and I was really impressed: The word of mouth is really working, and the solar bakery is quickly worth a visit just because of it’s innovative aspects, and at the end of this day, all queen cakes were sold again, to few additional clients that the participants had called and animated.

The participants all made sales, brought in cash through their work and had a real entrepreneurial success just after one week when I arrived, and at the end of the second week, our trainers left them with a profit in their account and an inventory of starter-ingredients for them to efficiently continue running their bakery. This entrepreneurship-creation process was really impressive to experience firsthand. It was extremely motivating to see how with Lytefire we can create real entrepreneurship opportunities wherever we go.

The experience was confirmed by the various other solar entrepreneurs I got to meet on my trip, and from some of them, you will soon hear more!

Stay tuned.

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Solar Fire chosen as TOP NORDIC 50 IMPACT COMPANY - 2021!

Posted Friday 3 December 2021 by Urs Riggenbach.

We are honoured to announce our company Solar Fire has been selected as one of the Nordic’s top 50 impact companies! Since 2017, The One Initiative has assessed over a thousand companies from the Nordic and Baltic regions, for their impact scalability and commercial viability. We are deeply grateful that our important work is more recognized today. On December 9th in Copenhagen, we will get to connect with fellow impact companies and investors, to build synergies needed to scale our impact.

To learn more about The One Initiative, and see the other top impact companies 2021, visit:

We look forward to join the event in Copenhagen on December 9th, 2021.

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 PrimeSteps team we will equip and train entrepreneurs with Lytefire solar ovens across different locations in Burkina, with a focus on women’s groups and cooperatives.

Jansen PrimeSteps is a Swiss non-profit foundation supporting solutions to improve people’s quality of life. Across sectors and countries, they identify the best solutions and provide know-how and financial support to scale-up projects with a large impact potential. We are really excited and honored by their support!

This project allows us to target specifically small women groups, who are not involved in bigger institutions or supported by larger organizations. By empowering these groups with the Lytefire technology and with the skills to run their own solar business, they can create their own income, become more independent, reduce their use of fossil fuels, protect their health and improve their quality of life - with Lytefire and solar entrepreneurship. We look forward to update on the project’s progress.

More information about our Project and Jansen PrimeSteps Foundation:

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 organization supports hundreds of vocational training centers, across Africa and beyond. Our cooperation starts in Kenya, with two vocational schools, one of them in the Kakuma region, hosting the world’s largest refugee site. Together we empower youths with the equipment and skills to become solar entrepreneurs.

More about this project (in German):

The site of Don Bosco Jugendhilfe Weltweit, the general salesian organization based in Switzerland, is here.

More info to come during project’s implementation.

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. The project will allow existing bakery cooperatives to transition from daily charcoal burning to using our powerful Lytefire 5 solar concentrator. In addition, we deepen our cooperation with Plan International’s SmartUp Hubs that started back in 2018: There we will equip the SmartUp Hubs with more Lytefires and train unemployed youths to become solar bakers.

It is a great opportunity to spread our entrepreneurial spirit to help boost incomes, grow local sustainable businesses, and at the same time reduce people’s exposure to toxic smoke from charcoal and other polluting fuels. Not to mention the carbon emissions this will reduce at the same time.

The cooperation is a collaboration between Plan International Finland as project initiator, Plan International Uganda as local implementation partner and Solar Fire, the creators of the Lytefire technology and the GoSol educational trainings to create solar entrepreneurs.

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