Question

3.16 A U.S. Department of Energy report estimates that over 122 billion kWh/year can be saved in the manufacturing sector in the United States by using mature and cost-effective conservation technologies. Calculate (a) how many 1000 MW generating plants are needed to operate constantly to supply this wasted energy, and (b) the annual savings in dollars if the cost of electricity is 0.10 $/kWh. 3.17 Electricity generation in the U.S. in year 2000 was approximately 3.8 x 10^9 MW-hrs, 16 percent of which is used for heating, ventilating and air conditioning. Based on a DOE report, as much as 30 percent of the energy can be saved in such systems by using adjustable speed drives. On this basis, calculate the savings in energy per year and relate that to 1000 MW generating plants needed to operate constantly to supply this wasted energy.

          3.16 A U.S. Department of Energy report estimates that over 122 billion kWh/year can be saved in the manufacturing sector in the United States by using mature and cost-effective conservation technologies. Calculate (a) how many 1000 MW generating plants are needed to operate constantly to supply this wasted energy, and (b) the annual savings in dollars if the cost of electricity is 0.10 $/kWh. 3.17 Electricity generation in the U.S. in year 2000 was approximately 3.8 x 10^9 MW-hrs, 16 percent of which is used for heating, ventilating and air conditioning. Based on a DOE report, as much as 30 percent of the energy can be saved in such systems by using adjustable speed drives. On this basis, calculate the savings in energy per year and relate that to 1000 MW generating plants needed to operate constantly to supply this wasted energy.

3.16 A U.S. Department of Energy report estimates that over 122 billion kWh/year can be saved in the manufacturing sector in the United States by using mature and cost-effective conservation technologies. Calculate (a) how many 1000 MW generating plants are needed to operate constantly to supply this wasted energy, and (b) the annual savings in dollars if the cost of electricity is 0.10 /kWh. 3.17 Electricity generation in the U.S. in year 2000 was approximately 3.8 x 10^9 MW-hrs, 16 percent of which is used for heating, ventilating and air conditioning. Based on a DOE report, as much as 30 percent of the energy can be saved in such systems by using adjustable speed drives. On this basis, calculate the savings in energy per year and relate that to 1000 MW generating plants needed to operate constantly to supply this wasted energy.

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