Role Wind Solar Oil Natural gas
Wireman
47%
63%
32%
43%
Roofer
43%
64%
36%
57%
Electrician
33%
66%
47%
50%
Construction labourer
38%
56%
64%
66%
Stationary engineer
28%
40%
64%
80%
Operating engineer
28%
46%
67%
72%