From: Evolution of patterns of specific land use by free-field photovoltaic power plants in Europe from 2006 to 2022
Year
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
Mean value W/m2
4.4
5.2
4.8
5.9
6.4
5.7
8.6
4.9
8.1
8.3
10.7
12.0
10.6
Median value W/m2
4.3
5.3
5.0
6.1
5.6
6.6
6.2
10.3
7.0
10.5
12.2
10.4