Revolution on German roofs: Solar modules for green roofs from 2028!

Revolution on German roofs: Solar modules for green roofs from 2028!

Today, November 7th, 2025, there is growing interest in innovative solutions for combining solar technology and green roof care in Germany. This is particularly relevant as the EU Buildings Directive requires the installation of solar systems in major renovations of public buildings from 2028. While numerous German cities have already implemented green roof requirements, a pilot project in Norway shows that these two requirements can be harmoniously combined. The use of vertical solar modules from Over Easy Solar represents a promising approach to overcoming these challenges.

The vertical solar modules can be installed on both flat and green roofs without affecting the vegetation. Weighing just 12kg/m² and the ability to harness sunlight from both sides, these prefabricated photovoltaic units offer an efficient solution. In addition, these modules are assembled up to ten times faster than with conventional systems, which means they can represent a decisive advantage in school modernization. Norway's first green roof with vertical solar modules was implemented at the Løren School in Oslo in 2022, with an output of 46 kWp installed on 500 m².

Advantages and successes of technology

The vertical solar modules not only provided a high electricity yield, but also improved the condition of the green roof beneath the modules. Such positive results are encouraging, especially in the context of German investments in the modernization of school buildings, totaling 120 billion euros, with a focus on sustainable energy. Around 90% of German cities with over 50,000 inhabitants already have development plans that include green roof requirements.

• Gründach mit vertikalen Solarmodulen an der Løren Schule: 46 kWp auf 500 m² (2022)
• Ullevål Stadion in Oslo: 248 kWp Solarleistung auf Gründach (2024)
• Größte Anlage in Nordnorwegen: 320 kWp auf dem Tromsøterminal

There is a clear trend towards green roofs in Germany. Over 80% of cities with 20,000 inhabitants or more are making efforts to integrate green roofs. Over Easy Solar is collaborating in Europe with Sempergreen, a green roof specialist, to further advance the implementation of this technology.

The importance of sustainable energy

The role of sustainable energy, which also includes such innovative solutions, is increasingly being recognized in the current global discussion. Sustainable energy not only has environmental and economic impacts, but it is also critical to combating greenhouse gas emissions and air pollution. Renewable energy sources, such as solar and wind power, are generally more sustainable than fossil fuels.

According to information from Wikipedia, access to clean electricity is critical to improving healthcare, education and economic development. There is still a great need, particularly in developing countries: around 790 million people have no access to electricity. The transformation of the energy system is not only ecologically necessary, but also offers significant benefits for society.

The growing integration of green technologies into urban infrastructure will not only improve efficiency and environmental footprint, but also represent an important prerequisite for future development. With the right political support, Germany could become a pioneer in the implementation of sustainable energy solutions, which is of great importance in view of global climate goals.

For further information on this topic and the latest developments, there are offers from Ökonews, Lush Stories and Wikipedia available.