Timeline for Calculating total energy savings for LED lighting
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 20, 2015 at 5:20 | comment | added | Johnny | I think you've forgotten to take the efficiency of the heat pump (air conditioner) into account -- your A/C uses less than 1 watt of power to move 3.4 BTUs of heat. Based on 1000W of lights turned on for one hour, an A/C with a SEER of 10 will need 100Wh to remove that energy, versus 15Wh with LED's. So your savings is (1100Wh - 165Wh) = 935W. Also, don't forget to take into account heating - if you heat with (relatively inexpensive gas), your 1000W bulbs are using more expensive electricity to heat the room than LED's would. | |
| Jul 19, 2015 at 22:45 | vote | accept | Zipper | ||
| Jul 19, 2015 at 16:40 | answer | added | Ecnerwal | timeline score: 1 | |
| Jul 19, 2015 at 13:35 | comment | added | Tester101 | Calculations like this are a fool's errand. First off, you're working with "imaginary" numbers. Second, these numbers are based on all lights being on, all the time. Third, it doesn't take into account any heat generated by current flowing through the wiring. Etc. There's far too many variables to get an accurate number. In the end, it's easier to simply say. "By switching to LED, you could reduce your lighting load by about 85%". | |
| Jul 19, 2015 at 5:20 | history | asked | Zipper | CC BY-SA 3.0 |