Steam turbine
134 TJ
Steam engine
8.96 TJ
Lightning collector
7.67 TJ
Lightning collector (Uncommon)
6.78 TJ
Accumulator
5.41 TJ
Solar panel
4.27 TJ
Lightning rod
3.91 TJ
Accumulator (Uncommon)
1.96 TJ
Lightning collector (Rare)
1.57 TJ
Accumulator (Rare)
1.20 TJ
Fusion generator
312 GJ
Accumulator (Epic)
43.7 GJ