Solar panel
60.2 TJ
Accumulator
22.4 TJ
Lightning collector
16.8 TJ
Steam turbine
15.3 TJ
Lightning collector (Rare)
2.74 TJ
Steam engine
1.28 TJ
Solar panel (Uncommon)
1.10 TJ
Fusion generator
835 GJ
Solar panel (Rare)
719 GJ
Lightning rod
637 GJ
Solar panel (Epic)
391 GJ
Fusion generator (Uncommon)
332 GJ
Accumulator (Rare)
4.63 GJ