Roof-top Solar PV System
A Rooftop photovoltaic power station is a system which uses one or more photovoltaic panels, installed on rooftops of residential or commercial buildings, to convert sunlight into electricity. The various components in a rooftop photovoltaic power station include photovoltaic modules, mounting systems, cables, Solar inverters and other electrical accessories.
The urban environment provides a large amount of empty rooftop spaces and can inherently avoid the potential land use and environmental concerns. Estimating rooftop solar insolation is a multi-faceted process, as insolation values in rooftops are impacted by the following:
- Time of the year
- Weather conditions
- Shading from adjacent buildings
- Shading from overhanging vegetation
- Roof slope
- Roof aspect
- Shading from adjacent buildings and trees
There are various methods for calculating potential solar PV roof systems including the use of LiDAR and orthophotos. Sophisticated models can even determine shading losses over large areas for PV deployment at the municipal level.