Page 236 - Solar Power in Building Design The Engineer's Complete Design Resource

206 LEED—LEADERSHIP IN ENERGY AND ENVIRONMENTAL DESIGN

Building 4

2
2
ENERGY COMPONENT (kBtu/ft -yr) (kBtu/ft -yr)
Space heating — 32.04
Space cooling 55.95
Indoor fans 33.81
Pumps & misc. 9.44
Domestic hot water∗ — 0.3
Lighting 32.78
Receptacle 10.30
Process
Total 142.28 32.34

Building No. 4 total energy consumption distribution profile
Building 4 annual electricity usage:

2
2
142.28 kBtu/ft -yr × kWh/3.413 kBtu = 41.68 kWh/ft -yr
Conditioned floor area = 1748 ft 2

2
2
41.68 kWh/ft -yr × 1748 ft = 72,870.03 kWh/yr
Local Hemet, CA, electricity cost: $0.43/kWh

Bldg 4 annual electric energy cost: $0.43/kWh × 72,870.03 kWh/yr = $31,334.11/yr
Building 5

2
2
ENERGY COMPONENT (kBtu/ft -yr) (kBtu/ft -yr)
Space heating — 0.23
Space cooling 28.85
Indoor fans 18.60
Pumps & misc. 2.95
Domestic hot water∗ — 0.3
Lighting 32.50
Receptacle 16.86
Process
Total 99.76 0.53