Page 237 - Solar Power in Building Design The Engineer's Complete Design Resource

WATER AND LIFE MUSEUM, HEMET, CALIFORNIA 207

Building No. 5 total energy consumption distribution profile
Building 5 annual electricity usage:

2
2
99.76 kBtu/ft -yr × kWh/3.413 kBtu = 29.22 kWh/ft -yr
Conditioned floor area = 1726 ft 2

2
2
29.22 kWh/ft -yr × 1,726 ft = 50,449.97 kWh/yr
Local Hemet, CA, electricity cost: $0.43/kWh

Bldg 5 annual electric energy cost: $0.43/kWh × 50,449.97 kWh/yr = $21,693.48/yr

Building 8

2
ENERGY COMPONENT (kBtu/ft -yr) (kBtu/ft -yr)
2
Space heating — 6.69
Space cooling 33.69
Indoor fans 19.00
Pumps & misc. 4.80
Domestic hot water∗ — 0.3
Lighting 44.14
Receptacle 16.95
Process 0.00
Total 118.58 6.99

Building No. 8 total energy consumption distribution profile
Building 8 annual electricity usage:

2
2
118.58 kBtu/ft -yr × kWh/3.413 kBtu = 34.74 kWh/ft -yr
Conditioned floor area = 4248 ft 2
2
2
34.74 kWh/ft -yr × 4248 ft = 147,590.92 kWh/yr
Local Hemet, CA, electricity cost: $0.43/kWh

Bldg 8 annual electric energy cost: $0.43/kWh × 147,590.92 kWh/yr = $63,464.09/yr

Summary Analysis

Total electricity cost (Buildings 1, 2, 3, 4, 5, 8): $288,558.99/yr + $379,161.85/yr +
$62,399.04/yr + $31,334.11/yr + $21,693.48/yr + $63,464.09/yr = $846,611.55/yr