Global investment in clean energy and efficiency
and share in total investment, 2015-2020
% Share of clean energy and efficiency
2015
2016
2017
2018
2019
2020
Billions
100
200
300
400
500
600
700
20
25
30
35
40
45
50
0
15
Renewable transport & heat
Renewable power
Nuclear
Energy efficiency
Battery storage
CCUS
% Share of clean energy and efficiency