lecture+1+chemical+processes - Cost of Electricity A...

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(Remember: power = energy/ time: 1 kJ/s =kW ~ 1 hp) We pay for energy consumed: 19-20 ¢/kWh US price ranges from 5 – 10 ¢/kWh. The Bay Area pays 2 – 4 times as much as US avg Cost of Electricity A typical US household uses about kW of energy 100% 100% TOTAL 0% 1% Other <1% 22% Nuclear 35% 44% Natural Gas 31% 17% Large Hydroelectric‡ 29% 2% Coal <1% 2% Wind 0% <1% Solar <1% 4% Small hydroelectric 4% 4% Geothermal <1% 4% Biomass and waste 2006 CA POWER MIX ∗∗ † (For Compar (Projected) ENERGY RESOURCES US 50 % 7 % 20 % 20 % 3 % 0.1% 100 % (oil) Price of natural gas: 3.5 ¢/kWh (from Canada) Price of coal: 0.4-0.8 ¢/kWh Why?
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Moss Landing Power Plant: Nat Gas Fired 2.56 GW (1 M homes) Fuels more rich in H 2 are greener i.e., much less is CO released From January through October 2005, the Moss Landing power plant released almost 900,000 tons of CO2, 60 tons of NOx and 4 tons of SO2 into the atmosphere.These amounts are relatively small, given
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This note was uploaded on 07/05/2010 for the course CHEME 140 taught by Professor Radke during the Fall '09 term at University of California, Berkeley.

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lecture+1+chemical+processes - Cost of Electricity A...

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