Steam turbine
387 TJ
Lightning rod
22.5 TJ
Accumulator
19.7 TJ
Lightning collector
17.8 TJ
Steam engine
14.9 TJ
Accumulator (Uncommon)
4.21 TJ
Solar panel
3.50 TJ
Accumulator (Rare)
425 GJ
Fusion generator
149 GJ
Accumulator (Epic)
38.3 GJ