Light Bulb Calculator

Your energy use with INCANDESCENT bulbs

Type in the bulbs you use:
# of bulbs	on hrs / day	watts




Energy Costs
Total usage:	kW-hrs / yr
Total cost:	$ / yr
Bulb Replacement Cost
incandescent bulbs, costing $ per year.

Your energy use with FLUORESCENT bulbs


Watts with equivilant brightness
	watts
	watts
	watts

Energy Costs		Total
	kW-hrs / yr	Savings
	$ / yr	$ / yr
Bulb Replacement Cost
fluorescnet bulbs, costing $ per year.

Base Costs

These calculations are based on the following assumed costs for electricity and replacement bulbs.

item	cost	expected life
electric power	$ 0.095 kW-hr	n/a
13W fluorescent	$ 3.005 /each	10000 hrs
18W fluorescent	$ 3.005 /each	10000 hrs
27W fluorescent	$ 3.005 /each	10000 hrs
30W fluorescent	$ 3.005 /each	10000 hrs
25W standard	$ 0.50 /each	2500 hrs
40W standard	$ 0.50 /each	1000 hrs
60W standard	$ 0.50 /each	1000 hrs
75W standard	$ 0.50 /each	750 hrs
100W standard	$ 0.50 /each	750 hrs
200W standard	$ 2.00 /each	750 hrs

Find out how you can save money and help the environment by switching to energy efficient compact florescent bulbs. Enter your data in the blue area below and click another cell to see the calculated results.

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** Based on a comparison of electricity suppliers in Alberta, as of January 1, 2009. Rate Source: Utilities Consumer Advocate www.ucahelps.gov.ab.ca. All fixed electricity rates are based on a five-year term. It compares electricity rates only and does not compare ENMAX Energy's or any other Alberta electricity supplier’s administration charges. Administration fees apply and vary between electricity providers and service regions. Additional fees and charges apply. Rates and fees do not include applicable taxes. Lowest fixed electricity rate claim assumes a minimum monthly consumption of 100 kWh/month. An average residence uses 625 kWh/month. Rates subject to change.