| Appliance |
Typical Usage |
$/month* |
$/year* |
| Christmas Lights |
| Snap-in Base (100
lights) |
6 hrs/day |
0.53 |
N/A |
| Large Screw Base (50 lights) |
6 hrs/day |
4.83 |
N/A |
| 4' Fluorescent Tube |
| 4-Lamp, T-12, 2 Magnetic
Ballasts |
10 hrs/day |
4.40 |
52.84 |
| 4-Lamp, T-8, 1 Electronic Ballast |
10 hrs/day |
2.61 |
31.37 |
| Exterior Flood Light |
| Incandescent 150 watt |
10 hrs/day |
3.44 |
41.28 |
| 23 Watt Par 38 CFL |
10 hrs/day |
0.53 |
6.33 |
| Interior Light Bulb |
| Incandescent 60 watt |
10 hrs/day |
1.38 |
16.51 |
15 Watt Compact Fluorescent
(60 watt equiv) |
10 hrs/day |
0.34 |
4.13 |
| Incandescent 75 watt |
10 hrs/day |
1.72 |
20.64 |
18 Watt Compact Fluorescent
(75 watt equiv) |
10 hrs/day |
0.41 |
4.95 |
| Incandescent 100
watt |
10 hrs/day |
2.29 |
27.52 |
27 Watt Compact Fluorescent
(100 watt equiv) |
10 hrs/day |
0.62 |
7.43 |
| Exterior Lighting (equivalent
lighting levels) |
| Mercury Vapor 175
watt |
10 hrs/day |
4.52 |
54.29 |
| High-Pressure Sodium 100 watt |
10 hrs/day |
2.64 |
31.67 |
| Metal Halide 100 watt |
10 hrs/day |
3.24 |
38.91 |
Exterior Lighting (equivalent
lighting levels)
|
| Mecury Vapor 400watt |
10 hrs/day |
10.18 |
122.15 |
| High-Pressure Sodium 250 watt |
10hrs/day |
6.79 |
81.43 |
| Metal Halide 250 watt |
10 hrs/day |
4.83 |
57.91 |
