$ SAVINGS FOR A NURSERY - 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 nursery | $ Savings due to electricity saved
Annual savings of $12.00
3 year savings of $36.00 |
Current incandescent bulbs used | 2 | 75 & 25 | incandescent | 100 |
4 hrs. daily ave.
1460 hrs. annually | 10 cents | 15 cents | $ .15 x 100 watts=$15.00 |
Replace with Total Spectrum Bulbs | 2 | 13 & 7 | total spectrum | 20 | 4 hrs. daily ave.
1460 hrs. annually | 10 cents | 15 cents | $ .15 x 20 watts=$3.00 |
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$ Savings due to electricity saved @ $ .10 per kilowatt hr.: Annual savings of $12.00, 3 year savings of $36.00 |
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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 nursery | $ Savings due to electricity saved
Annual savings of $17.60
3 year savings of $52.80 |
Current incandescent bulbs used | 2 | 75 & 25 |
incandescent | 100 | 4 hrs. daily ave.
1460 hrs. annually | 15 cents | 22 cents | $ .22 x 100 watts=$22.00 |
Replace with Total Spectrum Bulbs | 2 | 13 & 7 | total spectrum | 20 | 4 hrs. daily ave.
1460 hrs. annually | 15 cents | 22 cents | $ .22 x 20 watts=$4.40 |
$ Savings due to electricity saved @ $ .15 per kilowatt hr.: Annual savings of $17.60, 3 year savings of $52.80
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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 nursery | $ Savings due to electricity saved
Annual savings of $29.60
3 year savings of $88.80 |
Current incandescent bulbs used | 2 |
75 & 25 | incandescent | 100 | 4 hrs. daily ave.
1460 hrs. annually | 25 cents | 37 cents | $ .37 x 100 watts=$37.00 |
Replace with Total Spectrum Bulbs | 2 | 13 & 7 | total spectrum | 20 | 4 hrs. daily ave.
1460 hrs. annually | 25 cents |
37 cents | $ .37 x 20 watts=$7.40 |
$ Savings due to electricity saved @ $ .25 per kilowatt hr.:
Annual savings of $29.60, 3 year savings of $88.80 |
