NV C-37 Solar Practice Questions - Nevada C-37 Solar Contractor Examination Exam

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A four-person DHW load is 80 gallons heated 70°F (80 × 8.33 × 70 = 46,648 Btu/day). A 56 ft² array delivers 1,200 Btu/ft²-day at 50 percent system efficiency. What is the daily solar fraction?

About 18 percent About 36 percent About 72 percent About 144 percent

Correct Answer:

About 72 percent

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