CALCULATOR: Green light to savings

Check out this quick and easy calculator. It'll help you estimate how much money and carbon dioxide you'll save when you replace standard light bulbs with compact fluorescent light bulbs.

When you're done, share the calculator with your friends and find out who'll save more while helping the environment!

Untitled Document
Cost Savings Calculator
# Bulbs replaced Yearly Cost Savings
Number of 40-watt bulbs replaced
Number 60-watt bulbs replaced
Number 75-watt bulbs replaced
Number 100-watt bulbs replaced
Number 150-watt bulbs replaced
Energy Cost (kw*h):
Total Yearly Cost Savings:
Pounds of Carbon Dioxide Saved Yearly:

NOTE: Energy costs vary widely across the continental United States, from as little as $0.07/kWh in some rural areas, to more than $0.14/kWh. $0.10/kWh is roughly the national average; check your utility bill for your costs.

Credits:
• Mayors for Climate Protection
• Energy Information Administration

Copyright © 2008, Tribune Interactive

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