Convert Gigawatt-Hours to Exajoules
Convert Gigawatt-Hours (GWh) to Exajoules (EJ) instantly and accurately.
Conversion Formula
EJ = GWh × 3.600000000e-6
About Gigawatt-Hours
A gigawatt-hour (GWh) is the energy from 1 GW for one hour - exactly 3.6 TJ. National electricity generation is reported in annual GWh: Ireland ~32,000 GWh/year; France ~496,000 GWh/year. The Hornsea One offshore wind farm (1.12 GW) generates ~4,000 GWh/year. The Bath County Pumped Storage (3 GW, USA) stores ~24 GWh. World total battery storage capacity reached ~1,600 GWh by end-2022. Energy of 1 megaton TNT ≈ 1.162 GWh. 1 GWh = 3.6 TJ = 1,000 MWh = 3.412 × 10⁹ BTU.
About Exajoules
An exajoule (EJ) is 10¹⁸ J - the scale of global energy consumption. World primary energy supply in 2022 was ~580-610 EJ: coal ~160 EJ; oil ~190 EJ; gas ~145 EJ; nuclear ~26 EJ; wind ~8 EJ; solar PV ~8 EJ. Global electricity generation of ~29,000 TWh = 104 EJ. Solar energy incident on Earth's atmosphere is ~5.5 × 10⁶ EJ/year - approximately 9,000× total human demand. Annual fossil fuel combustion releases ~490 EJ/year, producing ~36.8 Gt CO₂. 1 EJ = 10¹⁸ J = 277.78 TWh = 238.85 Mtoe.
Quick Reference Table
| Gigawatt-Hours (GWh) | Exajoules (EJ) |
|---|---|
| 1 GWh | 3.6 × 10-6 EJ |
| 2 GWh | 7.2 × 10-6 EJ |
| 5 GWh | 1.8 × 10-5 EJ |
| 10 GWh | 3.6 × 10-5 EJ |
| 25 GWh | 9 × 10-5 EJ |
| 50 GWh | 0.00018 EJ |
| 100 GWh | 0.00036 EJ |