Well I am going to do a little bit of math for you to show you that CFL's and some LED lights are worth the switch and even the extra upfront cost in the long run but even in the short run they can be worth it. At the end I will explain my experience since switching from incandescent bulbs to LED's and CFL's.
First the math:
Lets say you have 15 light bulbs in you home that get used on average 6 hours per day. Lets also say that the current bulb uses 60 watts of electricity15x60=900 900x6=5400
So in this example those 15 bulbs are using an average of 5400 watts of electricity per day or 5.4 kilowatt hours of electricity per day.
Now lets look at those same bulbs if they were CFL's most 60 watt equivalent CFL's use only 13watts
15x13=195 195x6=1170
So these new bulbs are using an average of 1170 watts of electricity per day or only 1.2 kilowatt hours of electricity per day.
Although the savings may not seem significant enough to be worth your trouble in switching lets look at how much that savings adds up to during a normal month. we will base it on a 30 day month.
5.4x30=162 1.2x30=36
Now you can start to see the savings in one month the incandescent bulbs are using 162 kilowatt hours of electricity, where as the CFL bulbs are only using 36 kilowatt hours of electricity. So you can see that regular bulbs use about 4.5 times as much electricity as CFL's
Now lets look at those same bulbs if they were LED's the newest and most energy efficient bulbs that are on the market today. LED's that are equivalent to a 60 watt bulb only use about 7 watts of electricity.
15x7=105 105x6=630 .6x30=18
So an LED bulb will only use about .6 kilowatt hours of electricity per day and for a month only use about 18 kilowatt hours of electricity which is about 10 times less than a standard bulb uses.
Now my experience:
I made the switch to all CFL's and LED's about a year and a half ago in my house I have a total of 45 light bulbs (I don't necessarily use all 45 in any given day but I switched them out all the same.) Since the switch I have managed to cut my electric bill down to an average of around 450 kilowatt hours/month during the the last 12 months. Before the switch I was averaging around 800 kilowatt hours per month during the same 12 month span. So just switching out light bulbs really can save you about 50% on your electric bill.
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