Re:Some cities are taking another look at LED lighting after...
by jacobolus on Monday September 26, 2016 @05:12AM
(#12580365)
They rip the poles out, and replace them with fewer new poles (taller, wider spaced, with brighter lamps).
This makes the installation cost more attractive to the city.
The electricity bill is (potentially) lower if you replace very old lamps with LEDs at the same brightness.
The best sodium lamps are quite efficient though, so LEDs have only marginal advantage compared to replacing the old lamps with newer sodium lamps. If you make the LEDs dramatically brighter, then they actually end up using more electricity.
I haven’t seen any especially convincing numbers about an LED lamp project that saved on electricity bills. I’m not an expert in the subject though, and I haven’t looked too deeply into digging up data.
This makes the installation cost more attractive to the city.
The electricity bill is (potentially) lower if you replace very old lamps with LEDs at the same brightness.
The best sodium lamps are quite efficient though, so LEDs have only marginal advantage compared to replacing the old lamps with newer sodium lamps. If you make the LEDs dramatically brighter, then they actually end up using more electricity.
I haven’t seen any especially convincing numbers about an LED lamp project that saved on electricity bills. I’m not an expert in the subject though, and I haven’t looked too deeply into digging up data.