Not all solar systems are created equal. Of all solar panels on the market, SunPower panels convert more sunlight into electricity. This means our solar panels generate more power than conventional panelsMost energy per rated watt compared to the top ten solar manufacturers (9 of the top 10 manufacturers were tested, based on Photon Consulting 2013, Silicon module shipments). Photon International, 2012 and 2014. within the same amount of space and you’ll need fewer solar panels to produce the energy you need. You can maximise your available roof space to choose the best, unobstructed location for electricity production. You'll save more money on electricity costs over time with SunPower.