On-road tests show strong impact of shading on vehicle-integrated photovoltaics

Japanese researchers conducted a large-scale field study on 200 commercial trucks to evaluate the real-world performance and fuel-saving potential of vehicle-integrated photovoltaics (VIPV). Their results show that VIPV systems can reduce alternator load and fuel consumption by about 5.5–7%, with roughly 70% of horizontal solar irradiance effectively reaching vehicle surfaces and around 85% of PV output directly offsetting alternator demand under real operating conditions.

Raccontata dapv-magazine.com