Convert Gigawatt-Hours to Kilojoules
Convert Gigawatt-Hours (GWh) to Kilojoules (kJ) instantly and accurately.
Conversion Formula
kJ = GWh × 3600000000
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 Kilojoules
A kilojoule (kJ) is exactly 1,000 J and is the standard energy unit for food and physical chemistry. EU, Australian, and NZ food labels are mandatory in kJ: recommended adult intake is ~8,400 kJ/day. Bond dissociation energies: C-H bond 413 kJ/mol; C=C double bond 614 kJ/mol; N≡N triple bond 945 kJ/mol. Specific heat of water: 4.184 kJ/(kg·K). A cyclist riding at 150 W for one hour expends 540 kJ. Charpy and Izod impact toughness tests record results in J and kJ. 1 kJ = 1,000 J = 239.0 cal = 0.94782 BTU = 0.27778 Wh.
Quick Reference Table
| Gigawatt-Hours (GWh) | Kilojoules (kJ) |
|---|---|
| 1 GWh | 3.6 × 109 kJ |
| 2 GWh | 7.2 × 109 kJ |
| 5 GWh | 1.8 × 1010 kJ |
| 10 GWh | 3.6 × 1010 kJ |
| 25 GWh | 9 × 1010 kJ |
| 50 GWh | 1.8 × 1011 kJ |
| 100 GWh | 3.6 × 1011 kJ |