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Solar PV module prices vs. cumulative capacity

Solar photovoltaic (PV) module prices are measured in 2019 US$ per Watt. Cumulative installed solar PV capacity is measured in megawatts. This represents the
'learning curve' for solar PV.

Cumulative Installed Solar PV Capacity1 MW10 MW100 MW1,000 MW10,000 MW100,000 MWSolarPVModuleCost1976197619771977197819781979197919801980198119811982198219831983198419841986198619881988199019901992199219961996199919992002200220042004200620062008200820092009201120112013201320152015WorldWorld19762019World1976Y Axis: 106.09 US$ perWattX Axis: 0.3 megawatts2019Y Axis: 0.38 US$ perWattX Axis: 578,553megawatts