The Energy Blog Technical Reference Page

A collection of things you might find useful.

• 1 BTU = 1055 Joules
• 1 BTU = 252 calories
• 1 BTU = Amount in 1 Wood Match
• 1 KWH = 3414 BTU
• 1 KW = 56.9 BTU/Minute
• 1 Watt = 3.414 BTU/Hour
• 1 Watt = One Joule per second
• 1 Watt = 10 Ergs per second
• 1 Horsepower = 745 Watts
• 1 Horsepower = 2,543 BTUs per Hour
• 1 Horsepower = 550 ft/lbs per sec
• 1 Horsepower = 33000 ft/lbs per minute
• 1 Horsepower = 178.2 Calories/Second
• 1 Horsepower = 10,692 Calories/Minute
• 1 U.S. gallon has 231 cubic inches or 3.785 liters.

• 1 Gallon of Gasoline contains 124,000 BTUs
• 1 Gallon of E85 Ethanol contains 84,400 BTUs (72% of gasoline)
• 1 Gallon of Methanol contains 62,800 BTUs
• 1 Gallon of Fuel Oil (Heating) contains 140,000 BTUs
• 1 Gallon of LNG contains 75,000 BTUs
• 1 Ton of coal contains 16,000,000 to 26,000,000 BTUs
• 100 Cubic Feet of Natural Gas (Therm) contains 100,000 BTUs
• 100 Cubic Feet of Hydrogen contains 32,500 BTUs
• 100 Cubic Feet of Propane contains 250,000 BTUs
• 1 Kilogram of Hydrogen contains 125,000 BTUs
• 1 Kilogram of hydrogen is 11.1 Cubic Meters (392 Cu Ft) at atm pressure.
• 1 Cord of Hardwood Contains 24,000,000 BTUs
• 1 Cord of Softwood Contains 15,000,000 BTUs
• 1 Square foot of Sunshine in space contains 428 BTU/Hr or 127 Watts
• 1 Square foot of Sunshine on earth (US average) contains 298 BTU/Hr or 87 watts

1 standard cord of wood= 8 feet x 4 feet x 4 feet = 128 cu feet = approx 4,000 pounds

1 face cord of wood= 8 feet x 4 feet x 16 inches = 42.7 cu feet = approx 1,333 pounds

1 cord of wood contains the same energy as 192 Kilograms of hydrogen in 1/600th the space

• 1 barrel (bbl) = 42 gallons = 5.615 cubic feet = 159.0 liters
• 1 barrel (oil) = 6,000,000 BTUs
• 1 short ton (ton) = 2,000 pounds = 6.65 barrels (crude oil)
• 1 metric ton (tonn) = 2,200 pounds
• 1 therm = 100,000 Btu
• 1 ton of TNT equivalent is equal to 4,186 megajoules or 3,967,772 BTUs
• 1 quad = 1 quadrillion Btu = 10¹⁵ Btu or 293,071 Gigawatts
• 1 kilowatt-hour (kWh) = 1,000 watt-hours
• 1 megawatt-hour (MWh) = 1,000 kWh or 1,000,000 watt-hours
• 1 gigawatt-hour (GWh) = 1,000 MWh or 1,000,000,000 watt-hours
• 1 terawatt-hour (TWh) = 1,000 GWh or 1,000,000,000,000 watt-hours

A quadrillion is 1,000,000,000,000,000 (one thousand million million; 10¹⁵; SI prefix is peta-)

• 8,007,000,000 Gallons (US) of gasoline
• 293,071,000,000 Kilowatt-hours (kWh)
• 36,000,000 Tons of coal
• 970,434,000,000 Cubic feet of natural gas

The US uses 5.05 quads of energy a month or 60.6 quads per year.

• A Boeing 747-400 burns aproximately 5 Gal of fuel per mile
• A Class 1 freight train uses 341 BTU's to move 1 ton one mile. (USDOT)
• A Typical Semi Truck uses 3,357 BTU's to move 1 ton one mile. (USDOT)
• A Boeing 747 Freighter uses 9,600 BTU's to move 1 ton one mile. (USDOT)
• An F-14 Tomcat at full throttle burns 80 Gal of fuel per Minute
• A top Fuel Dragster gets the equivalent of 1/18 MPG (18Gal/Mile)
• The fuel pump on that same Top Fuel car pumps 65 GPM
• The average US household uses 92 Million BTUS of Energy per Year (2001)
• 48% of this countrys electricity is produced by coal. 20% is Nuclear
• 18% of electric production is from natural gas, and 11% is Hydroelectric
• 7% of our Total energy comes from renewable resources -
• 40% of ALL the energy we use comes from petroleum
• 78% of the oil we use is used for transportation.
• Energy required for 1 Galaxy Class Warp drive: 4,857 Quadrillion BTUs/Minute

• Automotive Aerodynamic, rolling resistance, horsepower & MPG calculator
• Convert For Windows - Converts any unit of measurement to any other - Program.