We are familiar with the inexorable and welcome march of solar panels across our rooftops, but many might be surprised that utility-scale power plants are now the fastest-growing application for the photovoltaics (PV) industry. This sector has delivered a compound annual growth rate over the last five years of 100 percent, to reach a cumulative installed capacity above 10 GW by the end of 2012. At that time, there were some 400 solar generating stations with a nameplate capacity of 10 MW and over, but the number and capacity of large-scale PV plants continued to grow in early 2013.