Saltheart
07-10-2009, 03:50 AM
The areas I use most at home are now free of incandescent bulbs. I replaced everything with fluorescent.This was recently ,made possible by the "dimmable" bulbs that recently appeared in the stores. There are still a couple of old bulbs in small lamps in rooms I never use but as they burn out (which will take a long time cause they are never used) , they will be replaced
I figure in the areas I use a lot I have replaced 10 bulbs. Say they are all 22 watt (some are actually smaller , 16 I think) that means if they were all on I would be using 220 watts. Previously I had about half 100 watt and half 75 watt so say 87 watt average. That would be 870 watts if all on. That's a nice 75% reduction in peak demand. Assuming the hours of use have not changed , that's also a 75% reduction in energy use. In fact I think its a little higher because I have one double bulb florescent that lights up the kitchen better than 4-75 watt bulbs once did.
If the new bulbs last as long as the package brags , the economics of it are easy with about $65 to $100 saved per bulb over its predicted long life at current energy rates.
I always wonder how much energy my computer is using while it sits there idle. I know the monitor turns almost off but the computer power supply is rated at something like 500 watts but I have no idea how much is used just leaving it on all night.
Anyway , IMO the new light bulbs do significantly reduce energy consumption , lowering the bill and hopefully benefiting the planet , etc.
I figure in the areas I use a lot I have replaced 10 bulbs. Say they are all 22 watt (some are actually smaller , 16 I think) that means if they were all on I would be using 220 watts. Previously I had about half 100 watt and half 75 watt so say 87 watt average. That would be 870 watts if all on. That's a nice 75% reduction in peak demand. Assuming the hours of use have not changed , that's also a 75% reduction in energy use. In fact I think its a little higher because I have one double bulb florescent that lights up the kitchen better than 4-75 watt bulbs once did.
If the new bulbs last as long as the package brags , the economics of it are easy with about $65 to $100 saved per bulb over its predicted long life at current energy rates.
I always wonder how much energy my computer is using while it sits there idle. I know the monitor turns almost off but the computer power supply is rated at something like 500 watts but I have no idea how much is used just leaving it on all night.
Anyway , IMO the new light bulbs do significantly reduce energy consumption , lowering the bill and hopefully benefiting the planet , etc.