A research project led by Fraunhofer Institute for Solar Energy Systems ISE has demonstrated that vehicle-integrated photovoltaics (VIPV) can significantly reduce strain on power grids. The concept is particularly relevant for the logistics sector, where trucks require large amounts of electricity for cooling, heating and auxiliary systems, while also offering extensive roof space for PV integration.
May 20, 2026
From pv magazine Germany
A research project led by Germany Fraunhofer Institute for Solar Energy Systems ISE (Fraunhofer ISE) has demonstrated that integrating photovoltaics into vehicle roofs, hoods and side panels – a concept known as vehicle-integrated photovoltaics (VIPV) – could significantly reduce pressure on power grids.
The researchers found that passenger cars in Central Europe could generate up to 55% of their annual electricity demand through onboard solar generation, assuming relatively low annual mileage and large roof surfaces, such as those found on SUVs. In Southern Europe, the share could rise to 80%. The approach could reduce charging costs and decrease the need for external charging.












