MISSION
More than software.
A contribution to the energy transition.
Storage belongs where energy is generated and used.
Commercial and industrial battery storage is a fundamental building block of a world powered by 100% renewable energy.
Invest locally, benefit locally.
Making that happen takes private investment at scale. It's not just the energy system that should be decentralized, but also the people and businesses who invest in it and benefit from it.
No false promises.
For this to work, the industry has to act responsibly. We want to support installers in their day-to-day work and contribute to fair, transparent and competent advice.
Advice that builds trust.
In the planning, in the business and in the industry as a whole.
OUR CUSTOMERS
Realistic results
We deliver numbers our customers can stand behind. In the sales conversation, during planning and through implementation.
Built for the real world
We know the day-to-day reality of project planning and installation. Our software is built for real projects, not lab conditions.
Personal service
We're easy to reach, we listen and we help. Software is only as good as the support behind it.
Accelerating the energy transition
Every storage project that happens thanks to better planning is a contribution to the energy transition. That's what drives us.
Lennart Wittstock
Lennart wrote his thesis at Utrecht University on modeling energy storage. Before Green Energy Tools, he built the software Circle-Hand, which is now used by secondhand stores in more than 20 countries. Roles at Enpal and ALVA gave him deep insight into the solar industry and the sales process for commercial battery storage.
Sven Tantau
As technical co-founder, Sven helped build the neighborhood platform nebenan.de, a product used by millions of people in Germany. He then served as CTO at bcause, a fintech platform for impact investing. He brings years of experience building scalable software products.
Simon Wedeking
Simon studied sustainability science and knows the solar industry firsthand: at Enpal and Dach für Dach, he talked to countless solar installers, planned metering concepts, stood on rooftops, designed systems and helped sell solar concepts.
We build for the people who make the energy transition happen every day.
Want to learn more or get started right away? Book a free call.