Lytefire - Fire from Sunlight

We make clean energy affordable for all,
enabling an equitable, liveable climate future.




Lytefire Campaign

145 € raised

150 000 € first goal

Support our campaign by:

Get involved

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 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)

Are you East Africa or West Africa?
Contact us for shorter term delivery of the heavier mostly steel version we already produce.
Want to fabricate the steel version for your regional market? Contact us


The Lytefire 5 Series for International Shipping

Lytefire is available in 3 different flavours.

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
The Multi adds the ability to equip a roasting drum inside the the oven and is a great addition for multifaceted enterprises.

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.

Read more
  • 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.

Read more
  • 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
The multi roasts about 2/3 as much as the dedicated roaster due to ... thermodynamics, basically, trust us.




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.

Better access to cleaner energy is only part of a broader solution to poverty. It is also essential to build the critical skills to maintain our technology, learn how to bake or roast, and learn the fundamentals of how to run a business. Finally, entrepreneurial success for new businesses should be supported by monitoring and coaching.

We partner with non-profits who have ongoing local presence, relationships and programs to build skills for sustainable livelihoods. Our method is to train our partners to be able to train their beneficiaries, so that after a time, we are not needed anymore and can focus on R&D (which is supported through Sponsorship and Climate Victory Bond explained below).


Project Uganda:
Empowering entrepreneurs with Plan International

Our partnership with plan international started in 2018 when we started training youths to become solar entrepreneurs.

Donate on the project page



Project Amazon:
Empowering indigenous communities with Forest Trends

Indigenous peoples are at the forefront of protecting the Amazon forests, a critical carbon sink and ecosystem.

With Forest Trends we are working toward empowering indigenous Amazonians with direct solar energy for sustainable food processing which increases food security and income from non-timber forest products.

Donation page coming soon

Climate Victory Bonds

Massive action is needed to set the world on a pathway to fix the climate, be sustainable generally, and solve poverty. Click here to learn more about investments.



Build Yourself: Lytefire 4

We are releasing our technology in ’open source’ through graphical construction guides that anyone can follow to build their own access to solar thermal energy.

By downloading the guide you can build a Lytefire 4 cookstove. This ergonomic and powerful cooking platform is great for the backyard, community gardens or eco-lodges.

If you want to support this initiative to empower people around the world with this knowledge we’ll be able to publish the next guides (oven) and the next (roaster) and the next (dehydrator) and the next (pyrolysis) and beyond! You can sponsor the guide and not only support but also give a person or organization a shoutout along with your name, logo and/or message, or you can invest in our Climate Victory Bond and help defeat the petroleum powered plutocracy!

Lytefire 4 PDF Guide

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




We are on a mission to solve climate change
and accelerate the adoption of clean energy for all.


Lytefire is an initiative to maximize the impact of solar thermal energy. It was initiated by the GoSol Team in 2019, after fully developing and piloting our solar technology on 4 continents. With Lytefire, we are offering our product on sale 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 Ltd, a Finnish impact enterprise.

Learn more about us on