Convert Ergs to Megawatt-Hours
Convert Ergs (erg) to Megawatt-Hours (MWh) instantly and accurately.
Conversion Formula
MWh = erg × 2.777777778e-17
About Ergs
An erg is the CGS unit of energy - the work done by one dyne through one centimetre - exactly 10⁻⁷ J. Despite SI adoption, the erg persists in astrophysics: the Sun's luminosity is 3.828 × 10³³ erg/s; gamma-ray burst isotropic energies are quoted in units of 10⁵¹ erg ('one foe'). Surface tension of water is 72.8 dyn/cm; the work to create 1 cm² of new water-air interface is 72.8 erg. Earthquake seismic moment M₀ is in dyn·cm = erg; the 2004 Boxing Day earthquake had M₀ ≈ 10²³ J = 10³⁰ erg. 1 erg = 10⁻⁷ J = 624.15 eV.
About Megawatt-Hours
A megawatt-hour (MWh) is the energy from 1 MW for one hour - exactly 3.6 GJ. It is the standard unit for wholesale electricity trading. Power purchase agreements (PPAs) specify capacity and price in $/MWh or €/MWh. A 5 MW wind turbine at full capacity generates 5 MWh/h. Primary aluminium smelting consumes 13-15 MWh per tonne. The Moss Landing battery (California) stores 3,287 MWh. The daily output of a 1 GW nuclear plant at 90% capacity factor is ~21,600 MWh. 1 MWh = 3.6 GJ = 3,412,141 BTU = 1,000 kWh.
Quick Reference Table
| Ergs (erg) | Megawatt-Hours (MWh) |
|---|---|
| 1 erg | 2.778 × 10-17 MWh |
| 2 erg | 5.556 × 10-17 MWh |
| 5 erg | 1.389 × 10-16 MWh |
| 10 erg | 2.778 × 10-16 MWh |
| 25 erg | 6.944 × 10-16 MWh |
| 50 erg | 1.389 × 10-15 MWh |
| 100 erg | 2.778 × 10-15 MWh |