| ENERGY DATA FOR USA compiled from
<www.eia.doe.gov> |
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| Note:
AvAnInc = average annual increase |
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Notes: |
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1 BTU (British Thermal
Unit) is approximately equal to 1 kJ (kilojoule). |
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The exact relation is 1
BTU = 1.055 kJ. |
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1 QUAD = 10^15 BTU, ie,
10 to the power 15 BTU, or 1,000,000,000,000,000 BTU. |
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For 1999, the breakdown
for primary energy use in the USA was as follows: |
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Source |
QUADS |
% |
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Oil |
37.71 |
39.04 |
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Nat Gas |
22.1 |
22.88 |
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Coal |
21.7 |
22.46 |
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Nuclear |
7.73 |
8.00 |
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Hydro |
3.74 |
3.87 |
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Biomass |
3.51 |
3.62 |
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Other |
0.12 |
0.12 |
solar, wind, geothermal |
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Total |
96.61 |
100.00 |
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For 1998, for the world,
the values were as follows: |
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Source |
QUADS |
% |
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Oil |
149.7 |
35.4 |
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Nat Gas |
84.4 |
20.0 |
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Coal |
87.5 |
20.7 |
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Nuclear |
24.5 |
5.8 |
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Hydro |
26.8 |
6.3 |
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Biomass |
50 |
11.8 |
may be low, Ramage
estimates about 14% |
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Total |
423 |
100.0 |
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The percentages for the
world and USA are similar (except for greater hydro and biomass use by the
world) |
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However, the USA, with
about 5% of the world's population, uses about 25% of the world's energy
(excluding biomass). |
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About 35% of the primary
energy is used to make electricity. |
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The average efficiency of
electrical generation is about 32%. |
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Thus,
in the USA, about 10 quads of electricity are produced in a year. |
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For the world, it is
about 4-fold greater. |
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The USA has about 25% of
the world's central electric generating stations. |
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The primary sources used
for generating electricity are coal, nuclear, and hydro. |
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| Note flatness in USA
natural gas production. |
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Note significant growth
in natural gas use for electric generation. |
Note flatness in USA
natural gas production. |
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Note natural gas
consumption is just now reaching the 1973 level. |
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Note the selling off of
power stations by the utilities. |
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Note the steady growth in
electric generation (=use). |
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Note the low growth rate
in electric generating capacity. |
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Electricity doesn't show
the ups and downs exhibited by oil and nat gas. |
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Note the high GDP grow
rate of the 1990's. |
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