Solar panel
31.2 TJ
Steam engine
22.5 TJ
Steam turbine
19.4 TJ
Lightning collector
9.66 TJ
Accumulator (Uncommon)
3.06 TJ
Accumulator
2.77 TJ
Fusion generator
635 GJ
Solar panel (Rare)
201 GJ
Lightning rod
63.2 GJ
Accumulator (Rare)
30.6 GJ
Solar panel (Epic)
22.2 GJ