Amperes, Volts, Watts, Horsepower, BTUs

The many measures used in discussing energy, power and heat are all related and are not that complicated when you take a close look at them. After this you should know what a kWh is. If not, read more about kWh.

Brief overview

1 watt = 1 volt X 1 ampere
1 watt = 3.41 BTU
746 watts = 1 horsepower

Volt: Measure of electrical potential
Ampere: Measure of current.

Measures of power

• Watts, Kilowatts, Megawatts and Gigawatts (terms go up in measures of 1,000)
1 kilowatt (kW)= 1,000 watts
1 megawatt (MW)= 1,000 kW
1 gig watt (GW)= 1,000MW
• Horsepower (see above)

Measures of energy

• Watt hours, kilowatt hours
1 kilowatt hour = the amount of energy donated to a load of one kW in one hour.

Measures of heat

• BTU: quantity of heat needed to raise the temperature of 1 pound of water 1F. It is approximately the amount of heat created by lighting a common kitchen match.
To Convert a measure of Into Use this equation:
Kilowatts Watts Kilowatts x 1000
Watts Kilowatts Watts x 0.001
Megawatts Kilowatts Megawatts x 1000
Kilowatts Megawatts Kilowatts x 0.001
Gigawatts Megawatts Gigawatts x 1000
Megawatts Gigawatts Megawatts x .001
Gigawatts Watts Gigawatts x 1 billion
Watts Btu/hour Watts x 3.413
Btu/hour Watts Btu/hour x 0.293
Kilowatts Btu/hour Kilowatts x 3414
Btu/hour Kilowatts Btu/hour x 0.000293
Watts Horsepower Watts x 0.00134
Horsepower Watts Horsepower x 746
Kilowatts Horsepower Kilowatts x 1.34
Horsepower Kilowatts Horsepower x 0.746

You can do the math with a calculator, or forget all this and download a conversion tool.