Page 234 - Solar Power in Building Design The Engineer's Complete Design Resource

204 LEED—LEADERSHIP IN ENERGY AND ENVIRONMENTAL DESIGN

Building 1

2
2
ENERGY COMPONENT (kBtu/ft -yr) (kBtu/ft -yr)
Space heating — 11.55
Space cooling 46.75
Indoor fans 33.32
Pumps & misc. 6.46
Domestic hot water∗ — 0.3
Lighting 22.93
Receptacle 23.14
Process 3.95
Total 136.55 11.85

Building No. 1 total energy consumption distribution profile
Building 1 annual electricity usage:

2
2
136.55 kBtu/ft -yr × kWh/3.413 kBtu = 40.01 kWh/ft -yr
Conditioned floor area = 16,773 ft 2
2
2
40.01 kWh/ft -yr × 16,773 ft = 671,067.43 kWh/yr
Local Hemet, CA, electricity cost: $0.43/kWh (per Vector Delta)

Bldg 1 annual electric energy cost: $0.43/kWh × 671,067.43 kWh/yr = $288,558.99/yr

Building 2

2
2
ENERGY COMPONENT (kBtu/ft -yr) (kBtu/ft -yr)
Space heating — 5.03
Space cooling 27.22
Indoor fans 29.71
Pumps & misc. 4.60
Domestic hot water∗ — 0.3
Lighting 19.48
Receptacle 16.15
Process 6.34
Total 103.50 5.33