Solar photovoltaic (PV) power generation has grown rapidly, from less than 1 gigawatt (GW) in 2000 to about 300 GW worldwide in 2017. Solar PV’s competitiveness against other sources of electricity has also continued evolving.
To track these crucial market trends, the International Renewable Energy Agency (IRENA) has developed Cost and Competitiveness Indicators for rooftop solar PV, based on the trends witnessed in key electricity markets.