A coal-fired power plant produces and sells 10,000 MW electricity while operatin

Question

A coal-fired power plant produces and sells 10,000 MW electricity while operating at 40% thermal efficiency. The sale price of electric power is $0.04 per kWh.

How much power does it reject to the atmosphere?

A) 4000 MW
B) 10000 MW
C) 15000 MW
D) 25000 MW
E) 40000MW

How much power (in the form of heat rate) does it require from coal combustion?

A) 4000 MW
B) 10000 MW
C) 15000 MW
D) 25000 MW
E) 40000 MW

How much revenue does it collect daily? (Select closest answer.)

A) $3,840,000
B) $9,600,000
C) $14,400,000
D) $24,000,000

Explanation / Answer

PRODUCTION= 10000 MW

EFFICIENCY= .4

2)TOTAL POWER REQUIRED FROM COAL COMBUSTION= 10000/.4

= 25000MW

REVENUE COLLECTED DAILY AT THE RATE OF $.04/KWH

HENCE POWER SOLD= 10000MW= 108KW*3600

FOR DAILY CONSUMPTION=108KW*3600* 24

HENCE REVENUE = 108KW*3600* 24* .04=14, 400,000

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