Convert Megawatt-Hours to Horsepower-Hours
Convert Megawatt-Hours (MWh) to Horsepower-Hours (hp·h) instantly and accurately.
Conversion Formula
hp·h = MWh × 1341.02209
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.
About Horsepower-Hours
A horsepower-hour (hp·h) is the energy from one mechanical horsepower (745.6999 W) for one hour - exactly 2,684,519.54 J ≈ 2.685 MJ. James Watt coined the horsepower to compare his steam engines with mine horses; billing in hp·h preceded the kilowatt-hour tariff. The metric horsepower (PS = 75 kgf·m/s = 735.499 W) gives a slightly smaller metric-hp·h = 2,647,795 J, used in European and Japanese engine datasheets. Today the hp·h appears in marine engineering logs, mining energy accounting, and vintage industrial equipment. 1 hp·h = 2.6845 MJ = 0.74570 kWh = 641.19 kcal.
Quick Reference Table
| Megawatt-Hours (MWh) | Horsepower-Hours (hp·h) |
|---|---|
| 1 MWh | 1341.02 hp·h |
| 2 MWh | 2682.04 hp·h |
| 5 MWh | 6705.11 hp·h |
| 10 MWh | 13410.2 hp·h |
| 25 MWh | 33525.6 hp·h |
| 50 MWh | 67051.1 hp·h |
| 100 MWh | 134102 hp·h |