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Bulbs Changed: 171,106
Summary Statistics for Ohio
Number of Bulbs Changed: 6,351
Annual Savings ($): 69,651.96
Annual Pollution Reduction (lbs of CO2): 996,023
Cumulative Savings ($): 212,011.08
Cumulative Pollution Reduction (lbs of CO2): 2,999,888

How Much Could You Save?
In Ohio, the average cost of electricity was $0.10/kWh as of May, 2006. The following table shows how much you could save by replacing up to 5 standard incandescent lightbulbs with compact fluorescent (CFL) models.
 Annual Savings ($) if Electricity is Priced at…
Number of Bulbs
Changed
kWh Saved Annually$0.10$0.11$0.12$0.13$0.14
1 110 10.95 12.05 13.14 14.24 15.33
2 219 21.90 24.09 26.28 28.47 30.66
3 329 32.85 36.14 39.42 42.71 45.99
4 438 43.80 48.18 52.56 56.94 61.32
5 548 54.75 60.23 65.70 71.18 76.65
Assumptions
  • All prices are in $/kWh (dollars per kilowatt hour).
  • Calculations assume you replace 100W incandescent bulbs with 25W CFL bulbs and that each bulb is in use for 4 hours per day on average.
What this means
Based on the average cost of electricity in Ohio as of May, 2006, you could save approximately $54.75 per year if you replaced five (5) 100W standard incandescent lightbulbs with five (5) 25W compact fluorescent (CFL) lightbulbs.

Good for you. Good for the environment
As you can see, you can save money by changing a few lightbulbs. Not only that, you'll help save the environment as well. According to EPA estimates from 2003, about 1.43 lbs of carbon dioxide (greenhouse gas) is released in the production of 1 kWh of electricity.
Greenhouse Gas Emissions
 Air Pollution Reduction Equivalence
Number of Bulbs
Changed
kWh Saved AnnuallyAnnual Greenhouse Gas Reduction
(lbs of CO2)
Number of Cars Removed
from the Road for a Year
Acres of Forest
1 110 156.6 0.01 0.02
2 219 313.2 0.03 0.04
3 329 469.8 0.04 0.06
4 438 626.3 0.05 0.09
5 548 782.9 0.07 0.11
What this means
By replacing 5 standard incandescent lightbulbs with 5 compact fluorescent bulbs, you could help reduce greenhouse gas emissions by up to 783 lbs of CO2 each year.

That's equivalent to the annual greenhouse gas emissions of 0.07 average passenger cars.

Imagine the Possibilities
As you can see, changing a few lightbulbs makes sense for you and for the environment. There are about 4,445,773 households in Ohio. Imagine if each household changed 5 lightbulbs. Here's what that would mean.
Dollars Saved Each Year in Electricity Bills ($): 243,406,075
Air Pollution Reduction (lbs of CO2): 3,480,706,698
Air Pollution Reduction Equivalence (number of cars removed from the road for a year): 301,099
Air Pollution Reduction Equivalence (acres of forest): 474,663