SAT, 09.02.2022 03:50 Mathinator
Solar cells convert the energy of incoming light to electric energy; a good quality cell operates at an efficiency of 15%. Each person in the united states uses energy (for lighting, heating, transportation, etc. ) at an average rate of 11 kw. Although sunlight varies with season and time of day, solar energy falls on the united states at an average intensity of 200 w/m2.
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