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Cologne Housing Cooperative Installs Rooftop Solar

pv-magazine.de · 18 May 2026
Cologne Housing Cooperative Installs Rooftop Solar
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Why this is here: The project will combine 750 kilowatts of solar capacity with 670 kilowatt-hours of battery storage to partially power 435 apartments in Cologne.

Green Planet Energy and Die Ehrenfelder eG, a housing cooperative in Cologne, Germany, plan to install photovoltaic systems on 55 residential buildings. Heimwatt, a Cologne installation company, will install a total of 42 rooftop solar arrays across ten building blocks. These systems will have a combined capacity of 750 kilowatts.

The project also includes batteries with a combined capacity of 670 kilowatt-hours. Green Planet Energy expects the solar power generated to cover roughly half of the electricity needs for the 435 apartments. Green Planet Energy will supply the remaining electricity with 100 percent green power.

The total investment for this project exceeds 1.28 million euros and will be implemented in phases. This is the eighth joint tenant electricity project between Green Planet Energy and Die Ehrenfelder eG, but the companies did not specify future plans for expansion.

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