Companies are investing more in wind than solar for their PPAs
Renewable technology investment based on PPAs, in US$ billion
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Solar PV
Wind
