Online stores selling solar photo-voltaic generation kits gives specs indicating the power generation capability of the system. For example, Solar World Grid-Tie Solar Electric System with 245W Panels & PV Powered PVP2000 Inverter, 1.2 to 2.4 kW. This seems to indicate that the system can generate 1.2 to 2.4 kW. Is that per day? Per month? I’m trying to calculate the return on investment, but can’t because I don’t know how much power a system such as this will generate in a month.
