Pumped storage facilities ________.
A) increase the overall efficiency of a power plant
B) make use of the output of electricity from photovoltaic cells
C) are used to produce electricity mainly at night
D) have an increase in their potential energy mainly at night
E) cannot be used with a nuclear plant

Question

Quizplus · Accepted Answer

Pumped storage facilities store energy by pumping water to a higher elevation during periods of low demand (often at night) and release it to generate electricity during peak demand, thus increasing potential energy mainly at night.

Pumped Storage Facilities ________