Light Bulb Calculator

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 "Update" to see the calculated results.

Wondering how we calculated the electricity cost?

The electricity cost used to calculate savings is based on a yearly average of the regulated electricity rate in Calgary (rates vary slightly throughout the province). It also includes the estimated savings on taxes, riders and other variable portions of your delivery charges - the costs to get electricity to your home.

Your energy use with INCANDESCENT bulbs

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




Energy Costs
Total usage:	kWh / yr
Total cost:	$ / yr
Bulb Purchase Cost
incandescent bulbs, costing $ per year.

Your energy use with FLUORESCENT bulbs


Watts with equivilant brightness
	watts
	watts
	watts

Energy Costs		Total
	kWh / yr	Savings
	$ / yr	$ / yr
Bulb Purchase Cost
fluorescent bulbs, costing $ per year.

Base Costs

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

item	cost	expected life
electricity	$ 0.137 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

You can choose any retailer listed at www.ucahelps.alberta.ca or call the UCA at 310-4822. Electricity delivery to your home or business isn't affected by your choice of retailer.

To reach an ENMAX Energy Customer Service Representative call 310-2010.
To report a power outage or other electrical trouble in Calgary call 403-514-6100.

® ENMAX Corporation

*Some conditions apply. No cash value. Subject to the EasyMax Terms. When you purchase gas and electricity together from ENMAX Energy, you will earn 100 EasyMax Rewards^® dollars accruing at the equivalency of $0.28 per day, which amount will be applied to your bill from ENMAX Energy at the frequency you request. If or when the EasyMax Rewards program is cancelled, you may receive less than 100 EasyMax Rewards dollars that year. Full details and eligibility in your area can be found in the EasyMax Terms available at enmax.com/easymax or by calling 310-2010 (toll-free in Alberta).

The information you provide will only be used for the establishment, billing, and collection of your ENMAX Energy account and communicating with you in relation to our services. If you have any questions about the collection of this information, please contact the ENMAX Privacy Manager at (403) 514-3000.

** Based on a comparison of electricity suppliers in Alberta, as of November 1, 2011. Rate Source: Utilities Consumer Advocate www.ucahelps.alberta.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.