Horsepower hour (hp hr),
Definition of Horsepower hour (hp hr):
Unit of energy equal to 745.7 watts hours, 2545 British thermal units (Btu) per hour, 1.98 million foot pounds, 2.68 megajoules, or 64.1 kilocalories.
Meaning of Horsepower hour (hp hr) & Horsepower hour (hp hr) Definition