Cost Savings

How much are you saving by replacing your conventional incandescent bulbs with CFLs?  A rough estimate is you knock off about $10 a year from your electric bill when you replace a 100W bulb.  (I assume the US Average of about $.10/KWh and 4 hours use per day.  If your electricity is higher priced, it means a proportionately faster payback.)

The Energy Star folks calculate that in 2007, Americans saved $1.5 billion by using CFLs, and saved air pollution equivalent to taking 2 million cars off the road.  Hey, a billion here and a billion there, and pretty soon you're talking real money!