Lytefire - Fire from Sunlight

With our solar concentrators we make clean energy affordable for all,
enabling an equitable, liveable climate future.




Maximizing Impact through Knowledge and Entrepreneurship

Empowering entrepreneurs with Lytefire

The Lytefire 5 units are perfect for entrepreneurs to roast, bake, cook and do other value-adding processes that genrate income and reduce CO2.

Working in the field we encounter entreprenurs that need your help to get started. Help us crowdfund to enable these entrepreneurs transition to solar immediately.

Solar Bakery in Rural Burkina Faso

Support a rural bakery switching from daily firewood burning to clean solar energy.

Freeing the knowledge on how to build the powerful Lytefire 4 solar concentrator!

After developing and proving our technology on 4 continets with real entrepreneurs we are releasing for free the entire knowledge on how to build the Lytefire 4!

We believe in the power of knowledge, and the drive of entrepreneurs around the world. To reduce climate change we need millions of entrepreneurs to go solar. By releaseing for free our technology, we enable entrepreneurs to build, go solar, save money and stop burning fossil fuels and trees.

To keep going we are looking for sponsors to create the next construction guides for the solar oven, roaster, dehydrator, pyrolysis units and beyond! Learn more about guide sponsorship here.

Downoad Lytefire 4 PDF Guide

Enter your email and have the construction guide sent to your inbox.


These entrepreneurs want to go solar. They need you.

Lytefire solar concentrators can replace firewood, charcoal and fossils.
The solar concentrator enables income-generating activities for entrepreneurs.

Who are you going to support today?

Solar Bakery in Rural Burkina Faso

Support a rural bakery switching from daily firewood burning to clean solar energy.

Women Empowerment in Burkina Faso

Crowdfund a local solar bakery owned by the Ghoghin Women’s Group. They want to improve livelihoods and reduce emissions.

Scaling Production in Kenya

In Kenya we already produce Lytefire at a small scales with local artisans.

Even More Projects

Solar Sauna in Switzerland

In the Swiss Alps, Lytefire is powering a Solar Sauna at 2000 meters altitude.

Bakery and Solar Roastery in France

Our CTO Arnaud is running a local roastery and bakery business on Lytefire

Empowering Youths in Uganda

With Plan International we are working in Uganda to empower youths with solar energy.



Latest Stories

How to Join the Lytefire Campaign

Pre-order Lytefire 5

Put money down to get your Lytefire in 2020.



Buy Climate Victory Bonds to invest in a liveable future.



Sponsor our free and open guides, empowering people around the world.


Donate directly to our non-profit partners to implement Lytefire.

→ Click here to view our free construction guides!

Question / Contact Us



Lytefire 5: Shipping in 2020


Lytefire 5

Lytefire 5 is available for pre-order now, shipping in 2020.

Featured: Lytefire 5 Multi

1 550 € (pre-order at 10% for 155 €)

Lytefire 5 solar concentrator with a combined oven and roaster, harnesses 3 kilo-watts of clean thermal power.

Use it for baking bread, pastries, cookies, cakes or pizzas! Installthe included roasting drum and roast peanuts, soya, cashews, coffee, cacao and more!

Read more3 kilowatts is the baking power with clear skies when the sun is above 15-20 degrees off the horizon. This will change depending on location. 4 kilowatts is the peak rating in ideal conditions, with a reflector area of 5.6 square meters.

Pre-Order (with 10% up-front)

Terms and Conditions

See other options starting at €1250


Pre-Order your Lytefire 5

For your business or your backyard, Lytefire 5 is availabe in 3 different flavours, shipping in 2020.

Lytefire 5 Oven

Bake at the same temperatures, speed and quantity of a commercial oven!

  • Can bake up to 40 kilograms of bread per day
  • Perfect for cakes, cookies, scones
  • Up to 300°C baking temperature
  • Even heat distribution for high quality bakes
  • Immune to blackouts and brownouts
  • No fuel costs

Lytefire 5 Roaster

Because there is no actual fire, there are no hot spots that char the nuts! There are no combustion residues either, just pure roasted flavour.

  • Can roast Peanut, Coffee, Cocoa / Cacao, Cashew and more.
  • No more burnt taste
  • Regulated temperature
  • Roasts up to 50kg per day of peanuts
  • No fuel costs

The dedicated roaster has a higher roasting capacity than the multi, so it is worthwhile if there are no baking needs.

Lytefire Multi

The Lytefire Multi is the best options for entrepreneurs and enthusiasts who want mainly to bake, but also want to pop in the roaster drum and roast some tasty roastables.

  • Get the best of both functions: Roaster & Oven
  • Bakes up to 35 kilograms of bread per day
  • Roasts up to 35 kilograms of peanuts per day
  • Roasts gently and evenly (no more scorching)
  • No fuel costs


If you are in East and West Africa, contact us for shorter term delivery.


The Lytefire 4 Construction Guide

Sponsor the Construction Guide

To maximize impact, we plan to release all our designs for free, one by one,
so anyone can build them locally.

We envision millions of local artisans around the world all building these devices, working out tricks to do it cheaper in their context, and disrupting the energy market, crashing the price and demand of coal, charcoal and gas as these fossil and biomass fuels are no longer able to compete against free solar fuel.

We’ve launched this campaign with the release of our first guide, the Lytefire 4 Stovetop. We expect this guide to eventually be downloaded and shared millions of times.

Sponsorship is a way to get your business or personal message out there while supporting more of this work. Ovens, Roasters, Dehydrators, Pyrolysis, Water Purifiers, Desalinators, Steam Engines, Recyclers - with your support we’ll be able to move forward and continue developing and releasing more and more of these construction guides!

You sponsor only what you can already see and what is already released (of course, we then update the downloadable guide with your message or logo), there are no promises we can’t keep and you gain immediate visibility.

Click here to sponsor



Donate directly to one of our non-profit partners and help spread Lytefire to people in need. Click here to learn more about donating to our partners.

Invest in Climate Victory Bonds

Massive action is needed to set the world on a pathway to fix the climate, be sustainable, and solve poverty. With the climate bond we are enabling investments to maximize the impact of Lytefire. Viral, local solar thermal can deliver a large scale energy shift in the short time we have to minimize the damage of climate change. Click here to learn more about investments.


We are on a mission to solve climate change and energy poverty
while accelerating the adoption of clean and decentralized energy for all.


Lytefire is an initiative to maximize the impact of solar thermal energy. It was initiated by the GoSol Team in 2020, after fully developing and piloting our solar technology on 4 continents. With Lytefire, we are offering our products on pre-order and we are releasing open source construction guides to support the global adoption of our technology.

Lytefire and GoSol are run by Solar Fire Concentration Oy, a Finnish social and impact enterprise created in 2012 in Tampere, Finland.

Learn more about us on