p.1 

OAR Box 1413 

Prepped by Ollie Stewart 

Document Number: 

113)11-1-114 

Docket Number: 

A-94-52 

Printed 7/9/2008 3:11:25 PM Sheet 113 of 114 
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313 
ENERGY REFERENCE HANDBOOK 

§ THE BTU 

A BTU is the amount of heat required to raise the temperature of 

one pound pf water one degree Fahrenheit. The BTU is a very small 

unit of measurement and when one adds up large quantities of energy, 

one must count in large multiples of the BTU. 

The BTU equivalents of common fuels are as follows: 

'iv 

-I".' 

Ji 

FUEL AND COMMON MEASURES BTU's 

Crude oil—Barrel (Ebl.) 5,800,000 

Natural Gas—Cubic Foot (CF) 1,032 

Coal—Ton 24,000,000 to 28,000,000 

Electricity—Kilowatt Hour (KWH) 3,412 

Two trillion BTU's per year are approximately equal to 1,000 

barrels per day of crude oil. 

APPROXIMATE CALORIFIC EQUIVALENTS OF OIL 

One million tons of oil equals approximately— 

Heat Units: 

41 Million million BTU's 

415 million therms 

10,500 Teracalories 

Solid Fuels: 

1.5 million tons of coal 

4.9 million tons of lignite 

3.3 million tons of peat 

Natural Gas (1 cu. ft equals 1,000 BTU's) 1 cu. meter 

equals 4,200 Kcals): 

2.5 thousand million cu. meters 

88.3 thousand million cu. ft. 

242 million cu. ft./day for a year 

Electricity (1 Kwh equals 3,412 BTU's) (1 Kwh equals 

860 Kcals): 

12 thousand million Kwh 

HEAT UNITS AND OTHER FUELS EXPRESSED IN TERMS OF MILLION TONS OF OIL 

/• a i 

••- . 

Million tons 

of oil 

.10 million million BTUs approximates to 0.24 

100 million therms approximates to 24 

10,000 Teracalories approximates to 95 

1 million tons of coal approximates to 67 

1 million tons of lignite approximates to 20 

1 million tons of peat approximates to 3 0 

1 thousand million cu. meters approximates to 86 

10 thousand million cu. ft. approximates to .24 

.100 million cu. ft./day for a year approximates to 88 

1 thousand million cu. meters approximates to 40 

10 thousand million cu. ft. approximates to .11 

100 million cu. ft./day for a year approximates to 41 

10 thousand million Kwh approximates to .82 

(one million tons of oil produces about 4,000 millions units 

(Kwh) of electricity in a modern power station) 

316 

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