Building the Direct Solar Economy

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Knowledge is Power!

Spread the Knowledge, Pre-order a SolBook!

Order for yourself, or send a copy to a friend, a NGO or a Library.


Get your ebook in PDF format readable on all devices.

Delivery Fall 2016.



Get your paperback copy of the SolBook in format 6x9 in (23,4x15,6 cm). 120 p., B&W, colored cover, shipping included.

Delivery Fall 2016.



Get your hard cover copy of the SolBook Square format, 160 p., shipping included.

Delivery Fall 2016.


Click HERE to learn more. Prices in Euros. Switch to USD.

SOL4 Tech Specs

SOL4 stands for 4 square meters of mirror surface that capture solar energy.
Our solar concentrators are designed to be built locally to lower costs and increase autonomy.


POWER OUTPUT of thermal heat energy is roughly equal to a standard gas stove, but without fuel cost.


OPTICAL SURFACE, such as normal "bathroom" mirror, will reflect the sun’s light onto the focal point to power the application.


MATERIAL COST if you build with retail steel and mirror prices; wholesale prices, recycling and displacing steel with wood can lower costs by up to half.

W:3m, L:4m, H:2m

FOOTPRINT The SOL4 rotates to follow the sun and requires a 3.5m circular area free from shade

BUILD FOR YOURSELF or OFFER A MEMBERSHIP TO A FRIEND: Get access to construction plans, cut lists, forum and answers from us at every step. Become a member and build for yourself. Get the Membership for $29.99/€26,92

The world is in great trouble because of climate change.
By building a direct solar energy economy our goal is to empower people.
Download "Direct Solar Economy for the general design of the society we intend to build. It contains years of experiences and our inspiring vision of a global solar economy.

Recently, in Kenya with World Vision Finland and Weconomy, we have achieved key technical break-throughs in the build-time of the solar concentrator and core applications of baking, boiling and roasting.

It’s time to spread this technology with you and scale exponentially to everyone who wants to know. Pre-order the SolBook or join as pioneering builder member.

Get clean and sustainable energy. Re-inforce your local economy. Become more autonomous.

"Knowledge is power. Spreading the knowledge about how to empower people is revolution."

Help Spread the Light!

Help Spread the Knowledge

With our SolBook campaign we want to spread the know-how of solar entrepreneurship globally.

Build for Yourself

Become a member and build for yourself. Get access to construction plans, forum and learn directly from the experts.