Chemistry In Focus
Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Chapter 10, Problem 32E
Interpretation Introduction

Interpretation:

The average solar power in kilowatts and the number of kilowatt-hours that fall on the rooftop in one year are to be calculated and whether the roof receives enough energy to meet the energy needs or not and the minimum percent efficiency of the solar cells are to be determined.

Concept Introduction:

Power input on a PV cell is the total active area of the PV cell multiplied by the solar power.

The percent of the input power that is converted into the output power by a PV cell is called its efficiency.

Percent efficiency of a PV cell is 100 multiplied by the ratio of power out and power in.

% efficiency=power outpower in×100% …… (1)

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