$ SAVINGS FOR A CHILD'S ROOM - REPLACE INCANDESCENT BULBS WITH ENERGY-EFFICIENT TOTAL SPECTRUM BULBS |
Household of 4 persons | * Annual cost per watt rounded to the nearest cent | |
Calculation based on cost of $ .10 per kilowatt hr. |
# of bulbs | Wattage | Bulb Type | Total Watts Used
| Usage | Cost per kilowatt hour | Annual cost per watt* | Total annual electric $
cost for child's room | $ Savings due to electricity saved
Annual savings of $13.57
3 year savings of
$40.71 |
Current incandescent bulbs used | 2 | 75 | incandescent |
150 | 3 hrs. daily ave.
1095 hrs. annually | 10 cents | 17 cents | $ .11 x 150 watts=$16.43 |
Replace with Total Spectrum Bulbs | 2 | 13 | total spectrum | 26 | 3 hrs. daily ave.
1095 hrs. annually | 10 cents | 17 cents | $ .11 x 26 watts=$2.86 |
$ Savings due to electricity saved @ $ .10 per kilowatt hr.: Annual savings of $13.57, 3 year savings of $40.71 |
| |
Calculation based on cost of $ .15 per kilowatt hr. | # of bulbs | Wattage | Bulb Type | Total Watts Used | Usage | Cost per kilowatt hour | Annual cost per watt* | Total annual electric $
cost for child's room |
$ Savings due to electricity saved
Annual savings of $21.08
3 year savings of $63.24 |
Current incandescent bulbs used |
2 | 75 | incandescent | 150 |
3 hrs. daily ave.
1095 hrs. annually | 15 cents | 17 cents | $ .17 x 150 watts=$25.50 |
Replace with Total Spectrum Bulbs | 2 | 13 | total spectrum | 26 | 3 hrs. daily ave.
1095 hrs. annually | 15 cents | 17 cents | $ .17 x 26 watts=$4.42 |
$ Savings due to electricity saved @ $ .15 per kilowatt hr.: Annual savings of $21.08, 3 year savings of $63.24 |
| |
Calculation based on cost of $ .25 per kilowatt hr. | # of bulbs | Wattage | Bulb Type | Total Watts Used | Usage | Cost per kilowatt hour | Annual cost per watt* | Total annual electric $
cost for child's room | $ Savings due to electricity saved
Annual savings of $34.72
3 year savings of $104.16 |
Current incandescent bulbs used | 2 | 75 | incandescent | 150 | 3 hrs. daily ave.
1095 hrs. annually | 25 cents | 28 cents | $ .28 x 150 watts=$42.00 |
Replace with Total Spectrum Bulbs | 2 | 13 | total spectrum | 26 |
3 hrs. daily ave.
1095 hrs. annually | 25 cents | 28 cents | $ .28 x 26 watts=$7.28 |
$ Savings due to electricity saved @ $ .25 per kilowatt hr.: Annual savings of $34.72, 3 year savings of $104.16 |
