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High-efficiency PV systems on unused bodies of water

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Floating-PV – an important role for the energy transition in Germany

Floating-PV systems on unused bodies of water – from disused coal quarries and mineral extraction pits to reservoirs – can make an important contribution to the green energy revolution in Germany and diffuse the heated debate on the use of land in residential and agricultural areas and on the development of renewable sources of energy. 

Innovative approach for the mitigation of land-use conflicts

Every day, 58 hectares are designated as residential and traffic areas in Germany alone – and this is equivalent to around 82 football pitches. By covering 10% of the artificial lakes suitable for Floating-PV, and taking all exclusion criteria into account (nature and countryside protection, recreational/leisure activities, etc.), the potential for Floating-PV in Germany is still over 2 GWp. 410,000 average German households can be supplied with power in this way with a neutral impact on the environment.

With this solar energy production, 1.1 million tons of CO2 can be saved each year. Additionally, the Fraunhofer ISE estimates that Floating-PV can potentially generate 1.6 to 5.5 GW in Germany just from the lakes from lignite mines.

Advantages for owners of bodies of water

With this technology, owners of artificial lakes can basically get twice the benefit from their otherwise underused bodies of water. The enormous advantages of Floating-PV, such as minimising evaporation by covering the water surfaces, as well as their comparatively easy installation and maintenance, quickly compensate for the somewhat higher installation costs of Floating-PV systems compared to ground-mounted solar systems of the same size. The reduction in evaporation through Floating-PV systems can play a decisive role, especially for hydraulic or pump storage facilities and water reservoirs. 


More water evaporates from reservoirs than is consumed by humans.

Prof. Eicke Weber, UC Berkeley (ret)

Floating-PV systems from the market leader 

Back in 2018, we brought our first floating PV project of 2,1 MWp on the water. As early as 2020, we built the floating solar park Bomhofsplas (Netherlands), which comprises a capacity of 27.4 MWp and back then was the largest floating PV plant outside China.

Since then, we have surpassed this success again and continue to hold the record of the largest floating PV projects outside Asia with the solar plant Uivermeertjes (29.8 MWp), as well as the 41.4 MWp project Sellingen. See all our references in Europe here

Our expertise

As a full service provider, we handle everything from project development, planning, procurement, financing and turnkey construction, right through to the commissioning and operational management. 

  • Planning and technical consulting 
  • Reporting and analysis 
  • Project development
  • Procurement from long-term partners 
  • Turnkey construction 
  • Financing 
  • Direct marketing 
  • Power purchase agreements (PPAs) 
  • Operational management

Our certified Floating-PV solution

Having determined that there was no Floating-PV system on the market that met our requirements and standards, we developed a new substructure together with the renowned Zimmermann PV-Stahlbau GmbH technology experts. This was ideally complemented by our certified electrical and mechanical system design. Find out more here.

We recently received the Innovation Award for our innovative total Floating-PV solution from pv magazine.

Do you have a water surface available?

We are interested in artificial and unused bodies of water (e.g., decommissioned brown coal and sand quarries, artificial reservoirs) with a minimum area of approx. 10 ha.

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