NGrid doens't want anything to do with light sources other than HPS for new installations. I guess that's a great thing for now at least LED can't creep in yet.
Duquesne Light uses a lot of high pressure sodium street lights, in fact they're replacing their mercury vapor fixtures with high pressure sodium fixtures as the lamps fail.
@ mike, national grid here in mass is going to allow towns to purchase the streetlights from them which will allow the towns to maintain them which could be the start of LEDs appearing on Grid poles. We already have that in effect in WMECO/CL&P. Towns such as New London and Stamford in CT own an maintain there lights such as the towns of Eastampton and Amherst here in Mass.
As much as I hate how wasteful NGrid can be at times, I don't want them to give up the streetlights to the municipalities here because then there will be jobs like the quality boston ones here. Servicing lights is a job I've always wanted to do. Maybe I'll move to a town in Mass that services their own lights and I'd try to get a job lol. I'd need a bucket truck though first.
It's a bit better than Boston since its intended to be temporary (I think?) while Boston is permanent due to linemen cutting the rims of streetlights for wire entrance!
In 1982 Long Beach, CA bought SCE's lights in the city to convert to LPS. In 96 LB contracted out and converted to HPS, also rewiring the mostly series to 240v multiple.
SCE still owns and maintains a small number of street lights in Long Beach, these are either mercury or HPS. In PG&E's area lots of cities maintain their own street lights, notably Berkeley, Oakland, San Jose, Fresno, and dozens others. Some of these have already gone to LED.
As for LED street lights, there are some who want a ban on HID cobraheads but I don't yet know what will happen. Philips says by 2015 all new lighting technologies will be LED. I am not THAT convinced with LEDs, the Los Angeles ones in use for over 2 years already show signs of lumen depreciation, and these are not just some cheap offshoot, they are supposedly quality BetaLEDs with CREE emitters.
@ Joe; no thanks.
Yeah i think the main reason why boston has those makeshift connections is because construction had probably cut a lot of the underground feeds.
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There are a LOT being tested, but donno where some are, but so far I saw some in Glen Burnie, Baltimore City and now Columbia!
As for LED street lights, there are some who want a ban on HID cobraheads but I don't yet know what will happen. Philips says by 2015 all new lighting technologies will be LED. I am not THAT convinced with LEDs, the Los Angeles ones in use for over 2 years already show signs of lumen depreciation, and these are not just some cheap offshoot, they are supposedly quality BetaLEDs with CREE emitters.
Yeah i think the main reason why boston has those makeshift connections is because construction had probably cut a lot of the underground feeds.