The Woods family uses about 10,000 kilowatt-hours of electricity annually. Coal-fired power plants release about 2 lbs. of carbon dioxide per kilowatt-hour of electricity produced
Wanting to be more environmentally "friendly," the family installs a solar photovoltaic (PV) system on their roof. They notice that the amount of electricity provided to them by their utility company has decreased by 60%. Assuming all of the utility company's electricity is generated from coal, how much less carbon dioxide is being produced annually as a result of the Woods installing their PV system?
A) 8,000 lbs.
B) 12,000 lbs.
C) 20,000 lbs.
D) It depends on how much carbon dioxide is being released by the PV system.
B
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