~115 GW, thru 3Q, 2021. That’s up from 16.5 GW of US solar, farther below, in early 2017.
Enough sunlight strikes Earth every 104 minutes to power the world for a year. Solar can power the US 100 times over.
US solar PV already offsets carbon emissions of 3.5 million cars. Rooftop PV can meet 1/5 of US electric demand.
US solar industry jobs grew 50% since 2010. Solar workers now outnumber coal miners 2 to 1. - Mother Jones
Translating $ / Watt peak (above) to ¢ / kWh (left).
€3 ~ $3.3 now, so the scale at left is to US 90¢ / kWh.
Solar electricity prices fell from 40-56¢ / kWh in 2009 to 7-17¢ / kWh in 2015.
They are projected to fall to 5-11¢ / kWh in 2020.
Solar Power May Be Cheaper than Coal in India by 2020 - 1115.rtf
prices are in Rupees (~1.5¢US): 0-16 Rupees/kWh
Data from SEIA.
The Institute for Self Reliance website projects states when & where solar PV costs will reach parity with grid power costs.
Comparing the maps below and above, the 7 western-most contiguous states and Massachusetts exceed the projections, while the other states installed fewer MW than projected. The US total is 7% more than projected.
Potential Installed MW Capacity & % of Residential Electricity Sales from Solar at Parity - from 2012, No incentives, resid., 20% utility cap.
2021: ~185 GW of solar PV (1/6 of all GW now) projected by 2022
Map of Solar & Wind Resources in China
Section Map: Renewable Energy