This amounts to 1,980,000 foot-pounds per horsepower-hour.    From Wordnik.com.  [Energy and Society~ Chapter 3~ Inorganic Energy Sources~ Wind and Water] Reference

H2 hydrogen he height of earth column hp horsepower hph horsepower-hour.    From Wordnik.com.  [10. Appendix] Reference

At 20 percent efficiency he expends about 1 horsepower-hour of mechanical energy to get the coal.    From Wordnik.com.  [Energy and Society~ Chapter 5~ Steam~ Key to the Industrial Revolution] Reference

One kilowatt hour is equivalent to 1.34 horsepower-hours and to 860 Calories; one horsepower-hour equals about 641.56 Calories.    From Wordnik.com.  [Energy and Society~ Chapter 1~ Energy & Society] Reference

Among the concepts I have introduced here are kinetic and potential energy; field, limit, and gradient; and such measures as the Calorie, the kilowatt and the kilowatt-hour, the horsepower and horsepower-hour.    From Wordnik.com.  [Energy and Society~ Chapter 1~ Energy & Society] Reference

They carried a crew of about 40 men, so since each man consumed in the form of food the equivalent of about 1 horsepower-hour per day, the surplus developed at a maximum was about 47 horsepower-hours per day per crew member when the ship operated round the clock.    From Wordnik.com.  [Energy and Society~ Chapter 3~ Inorganic Energy Sources~ Wind and Water] Reference

As a matter of fact, there is less heat to be had in thermal units from a horsepower-hour of electricity than from three ounces of coal.    From Wordnik.com.  [Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine] Reference

If we rate a team of oxen a 1½ horsepower and assume that of the 50 days spent in plow-culture farming, there are 30 days in which the team is used 10 hours a day, we get a total of 450 horsepower-hours for the oxen and 50 (figuring the man at 1/10 horsepower, or 1 horsepower-hour per day) for the men used, or a grand total of 500 horsepower-hours to produce a hectare of corn with the plow as compared with 165 horse-power hours for hoe culture.    From Wordnik.com.  [Energy and Society~ Chapter 7~ The Industrialization of Agriculture] Reference

1 B.T. U. (British T.ermal Unit) = 1,052 watt-seconds = 778 foot-pounds = 0.252 calorie = 0.000292 kilowatt-hours = 0.000391 horsepower-hour.    From Wordnik.com.  [Practical Mechanics for Boys] Reference

1 horsepower-hour = 6. 42·102 kilocalorie (thermal) 1 horsepower-hour = 2. 55·10s Btu (thermal) 1 horsepower-hour = 2. 68·106 joules.    From Wordnik.com.  [Horsepower hour] Reference

0.00129 B.T. U. = 0.0000005 horsepower-hour.    From Wordnik.com.  [Practical Mechanics for Boys] Reference

1 horsepower-hour.    From Wordnik.com.  [Horsepower] Reference

1 horsepower-hour = 2.6813 ergs.    From Wordnik.com.  [Horsepower hour] Reference

1 horsepower-hour = 0.746 kilowatt-hours.    From Wordnik.com.  [Horsepower hour] Reference

1 horsepower-hour = 1. 97·106 foot-pound.    From Wordnik.com.  [Horsepower hour] Reference

1 horsepower-hour = 1. 67·1025 electron-volts.    From Wordnik.com.  [Horsepower hour] Reference

1 horsepower-hour = 2. 68·1013 dyne-centimeters.    From Wordnik.com.  [Horsepower hour] Reference