NABCEP - North American Board of Certified Energy Practitioners Practice Test
NABCEP NABCEP Solar Heating Installation Professional 2
What is the Solar Fraction (SF) of a solar thermal system?
Select your answer
A
The angle of the collector relative to true south
B
The percentage of the total heating load supplied by solar energy
C
The ratio of collector area to storage volume
D
The system's thermal efficiency at standard test conditions
Hint