Findings

Renewable generation has grown rapidly, dwarfing production from just 10 years ago.

Wind primarily drove new generation for most of the 10 years

Recently, however, solar generation has picked up fast as well

Solar thermal originally out-generated solar PV, but was passed in 2011

Solar thermal and PV show strong growth recently

Very strong growth is expected to continue

Source

Information is from the EIA. Information is for the US only.