$ SAVINGS FOR A CLOSET - 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 closet | $ Savings due to electricity saved Annual savings of $6.56 3 year savings of $19.68 |
Current incandescent bulbs used | 2 | 100 | incandescent | 200 | 1 hr. daily ave. 365 hrs. annually | 10 cents | 4 cents | $ .04 x 200 watts=$8.00 |
Replace with Total Spectrum Bulbs | 2 |
18 | total spectrum | 36 | 1 hr. daily ave. 365 hrs. annually | 10 cents
| 4 cents | $ .04 x 36 watts=$1.44 |
$ Savings due to electricity saved @ $ .10 per kilowatt hr.:
Annual savings of $6.56, 3 year savings of $19.68 |
| |
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 closet | $ Savings due to electricity saved Annual savings of $9.84 3 year savings of $29.52 |
Current incandescent bulbs used | 2 | 100 | incandescent | 200 | 1 hr. daily ave. 365 hrs. annually | 15 cents | 6 cents | $ .06 x 200 watts=$12.00 |
Replace with Total Spectrum Bulbs |
2 | 18 | total spectrum | 36 | 1 hr. daily ave. 365 hrs. annually | 15 cents | 6 cents | $ .06 x 36 watts=$2.16 |
$ Savings due to electricity saved @ $ .15 per kilowatt hr.: Annual savings of $9.84, 3 year savings of $29.52 |
| |
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 closet | $ Savings due to electricity saved Annual savings of $14.76 3 year savings of $44.28 |
Current incandescent bulbs used | 2 | 100 | incandescent | 200 | 1 hr. daily ave.
365 hrs. annually | 25 cents | 9 cents | $ .09 x 200 watts=$18.00 |
Replace with
Total Spectrum Bulbs | 2 | 18 | total spectrum | 36 | 1 hr. daily ave.
365 hrs. annually | 25 cents | 9 cents | $ .09 x 36 watts=$3.24 |
$ Savings due to electricity saved @ $ .25 per kilowatt hr.: Annual savings of $14.76, 3 year savings of $44.28 |