Search documents

Browse topics

Document details

Key Performance Indices of Photovoltaic Carports
M. Loup, C. Allenspach, H. Hofmann, R. Vogt, F. Carigiet, F.P. Baumgartner
Durability, E-Mobility, PV Carport, CO2 Footprint, Distribution of Costs and Material
PV Applications, Integration and Storage
Subtopic: PV in Infrastructure, on Water and on Vehicles; PV and Agriculture
Event: 38th European Photovoltaic Solar Energy Conference and Exhibition
Session: 6CV.4.31
1565 - 1568
ISBN: 3-936338-78-7
Paper DOI: 10.4229/EUPVSEC20212021-6CV.4.31
0,00 EUR
Document(s): paper, poster


PV carports are an ideal solution to produce electricity locally and sustainably, while taking advantage of the dual use of the space. On average, large carports have a power output of 0.17 kWp/m2. The average costs amount to 2'100 CHF/kWp. The price per kWp decreases slightly when the power clearly increases. The costs of the PV modules are lower than the costs for the carport's foundation and supporting structure, which represent generally between 30 % and 60 % of the total costs. The amount of steel is estimated to 155 kg/kWp and the quantity of concrete required is approximately 650 kg/kWp. The specificities of the terrain naturally have an impact on these values. A carport parking space emits 690 kgCO2-eq during the construction phase and an electric vehicle (EV) 11.2 kg-Co2-eq/100 km on average. Innovative projects include retractable roofs to offers the potential to reduce the amount of material used in the mounting structure, due to storing the PV modules in a safety box during heavy wind or snow load. The use of wood instead of metal, and screws anchor instead of concrete, as well as the addition of greenery, greatly reduces total CO2 emissions.