Compact Fluorescentize Your House

Step 8 Savings All Together

Now for the final verdict!

Considering the circumstances, with 60Watt Bulbs, I changed 8 of them in my house. In PA, the approximate energy cost is $10.26cents/kw hour. The approximate number of hours my CFLs will last, is 10000 hours.

The savings that I will have are the following:

369.36 in Energy bill savings.
4,854pounds of C02 prevented

How was this calculated?
The calculator assumes that incandescent bulbs are replaced with compact fluorescent bulbs with one-fourth the wattage (e.g., a 100-watt incandescent bulb is replaced with a 25-watt compact fluorescent bulb).

State average CO2 emissions per kW-hour are for 1998-2000 and are from the Energy Information Administration (EIA), Updated State-and Regional-level Greenhouse Gas Emission Factors for Electricity (March 2002).

Thank you to environmental defense for helping me calculate my energy savings!

Comments

[nictinkers]

Your CO2 calculation assumes CFLs have unity power factor, when in fact they best ones I have found are only around 0.6. (Reputable brands will indicate the PF on the base of the lamp or the packaging) A typical "25 watt" CFL with a power factor of 0.5 will only add 25W to your bill, but your power company will have to generate 50VA to power it. The other half of the power generated will be dissipated in power factor correction equipment or generator / transformer windings.

I point you to this discussion by Rod Elliott for further reference (and other reasons why you can't just whack CFLs in every fitting in your home)