Pumped storage generally will enable a utility to A. increase their electrical p

Question

Pumped storage generally will enable a utility to A. increase their electrical potential energy B. increase the efficiency of their electrical generating system C. raise electrons to higher energy states D. store energy until the demand is high enough Solar energy is quite compatible for a major part of the United States because our major energy needs are for energy. A. chemical B. kinetic C. potential D. Mechanical E. thermal If a constant non-zero force is applied to an object, its velocity will certainly. A. be constant B. change C. stop D. be zero E. equal its acceleration Which of the following would not be considered a fissile nuclear fuel? Check all the that apply. A. A fuel that can generate fertile material after bombardment with high energy neutrons. B. A fuel that can generate fertile material after bombardment with low energy neutrons. C. A fuel that can perpetuate a nuclear reaction with bombardment by high energy neutrons. D. A fuel that can perpetuate a nuclear reaction with bombardment by low energy neutrons. E. A fuel that can perpetuate a nuclear reaction with bombardment by neutrons. Which of the following energy sources are a result of a change in the electron structure of matter. Check all apply. A. Fission B. Wind C. Geothermal D. Coal E. Petroleum

Explanation / Answer

Ans 39. D. Store energy until the demand is high enough

These energy storage systems are important to electrical utilities , and the pumped storage system is the one in which water is pumped up to a reservoir during the periods of light electrical demand , which is then discharged into hydrogenerators which can generate electricity , where and when needed.

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