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* Testing is currently limited to areas within Germany
Our Api is trusted by
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Our Mission

Leading Europe's
solar revolution

The European Union has set itself the ambitious goal to have 1 TWp solar capacity by 2030.

Our goal is to provide everyone in Europe with quick and easy to-understand information about the suitability and potential of their roof for installing solar panels. Only if everyone participates, we can achieve the goal of 1 Terawatt of solar energy in Europe by 2030.

A goal that we are certain is only reachable by a collective and united action. Our customers are mainly governmental organizations, large corporations as well as medium-sized companies that are already working to reach the goal.

Start with our solution and let's take on this challenge together!

Our story

Achievements

Renewable energy – Our mission! Since 2009, we have been committed to the world of solar. Since then, we are helping our customers getting to the full potential of many roofs.

More about our background
Area
0
million km² area
Roofs
>
0
million BUILDINGS
Population
0
million Residents

Features

State of the art technology
roof part information
roof part information
Roof part information

The orientation, tilt and size of each roof part.

shade and radiation on the roof
shade and radiation
Auto-detect shadow and radiation

Automatic position, extent and effect of shading.

automatic module placement on the roof
automatic module placement
Optimized panel placement

The realistic amount of panels which can be placed on a building roof without human intervention, considering the real shape of each roof part.

building height information
Building Height
Building height

The highest and lowest part on the roof, relevant for your planning and offering phase.

cadastral information
cadastral information
Cadastral information

Cadastralinformation, such as land parcel information, building usage and further official information.

More about our product

Explore & Test our API

Empower your applications with our API's robust features and watch your ideas come to life. we invite you to dive into the world of seamless integration and limitless possibilities. Discover how our API can revolutionize your projects and get hands-on experience by testing it for free, no strings attached!

Sabina Duarte Matheu
Head of Solar Product @ Holaluz

testimonials

What our customers say about us

"Thanks to 1TWp high-quality building data, we can offer automated advisory solutions for renewable technologies in all building types. Together, we are thus solving an important bottleneck in the energy transition and getting renewable technologies faster onto roofs and into our buildings."

Barbara Jordan
Head of Marketing & Sales @ everyone energy GmbH

"Accurate calculations are essential to provide the best advise to our customers. That is why we already work with tetraeder for many years."

Milan van der Meulen
Founder @ Soly Holding B.V.
Milan van der Meulen
Founder @ Soly Holding B.V.

"Gelderland is working on renewable energy. Data from Zonatlas has given us and our partners insight into the solar energy that can be harvested from Gelderland's rooftops since 2013. And that helps solve the energy transition puzzle."

"The ease of use of this tool has been the boost citizens needed to encourage them to generate their own electricity and contribute to the essential energy transition."

Mª José Ruiz de Villa Revuelta
Deputy Director of the Environment Service @ Valladolid City Council

"What is special about tetraeder.solar? Everything! The people are extremely professional and more than outstanding in finding solutions for even the trickiest challenges. The product is one of its kind. And beyond that, it makes fun working with Stephan and his team - already since 2019!"

Tim Rosengart
Dr. Tim Rosengart
@ Selfmade Energy
Pon Cat

""With the data from Zonatlas, our (future) customers can see at a glance whether their roof is suitable for our solar panels. The calculations are carried out very precisely and are therefore very reliable. In addition, the personal cooperation with the employees of Zonatlas is very pleasant."

Jeroen Boot
Digital marketing specialist @ Pon Power

""With the data from Zonatlas, our (future) customers can see at a glance whether their roof is suitable for our solar panels. The calculations are carried out very precisely and are therefore very reliable. In addition, the personal cooperation with the employees of Zonatlas is very pleasant."

Jeroen Boot
Digital marketing specialist @ Pon Power
Pon Cat

""With the data from Zonatlas, our (future) customers can see at a glance whether their roof is suitable for our solar panels. The calculations are carried out very precisely and are therefore very reliable. In addition, the personal cooperation with the employees of Zonatlas is very pleasant."

Jeroen Boot
Digital marketing specialist @ Pon Power

Dashboard

All your data at a glance

The Dashboard provides you with a complete overview over your API usage and data. Access all the information you need with just a few clicks, making it incredibly easy to navigate. Streamline your workflow, increase productivity and stay on top of your tasks to accomplish more in less time.

Documentation

Don't worry about getting stuck

Explore our documentation. Our team has put in great effort to ensure that our documentation is easy to navigate, comprehensive, and user-friendly. It will provide you with valuable insights and help you make the most of our platform.

contact

Reach out to our experts!

If you need further information or have any questions, please do not hesitate to contact us! Our experts are at your disposal and will answer you as quickly as possible.

Write us an email
tetraeder.solar gmbh
Am Kai 22
44263 Dortmund
Germany
info@onetwp.solar
Interested in testing our API?
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