The total area for a dentist\\\'s office 18,522 sf. The gross lighting floor are

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试卷: LEED AP ID+C 模拟试卷D[查看]
The total area for a dentist’s office 18,522 sf. The gross lighting floor area for a dentist’s office is 18,340 sf. The lighting power density for the space is 1.1 watts/sf. What amount of the connected lighting load requires occupancy sensors to earn 1 point for Energy and Atmosphere Credit, Optimize Energy Performance-Lighting Controls?
A: 13,892 watts
B: 15,281 watts
C: 15,131 watts
D: 13,755 watts

参考答案: C

本题解释:
Notes:

Reference: Energy and Atmosphere Credit, Optimize Energy Performance-Lighting Power, Calculations

For the building area method use this equation:

Gross lighting floor area (sf) X Building area type lighting power density (watts/sf) = Installed interior lighting power allowances (watts)

18,340 sf X 1.1 watts/sf = 20,174 watts

To earn 1 point for occupancy sensors at least 75% of the connected lighting load must have occupancy sensors.

20,174 X 0.75 = 15,131 watts