How much energy will a PV system provide in the UK?

An optimally orientated and un-shaded 1kWp PV array will typically produce between 750 to 900kWh (units) of electricity per year in the UK (depending on location and system design). Sundog energy can provide site specific estimates, including computer simulations, on request. In making initial assessments, an output of 750kWh/kWp is commonly used as an initial "rule of thumb" - hence a 2kWp system would produce approx: 2 x 750 = 1,500kWh / year.