[Chaos-l] Light pollution reduction opportunity: New lighting in Raleigh

[Terry Crook]

A couple of strategic thoughts:
First, the conversion to LED lighting for 
municipalities will be primarily economy-driven & 
through replacement as well as new construction. 
This will occur slowly over many years, probably decades.
Second, our best 'n likeliest promotional route 
is through the City Councils locally where some 
environmentally-oriented members might get 
enthusiastic & press for LED replacements where budget-practical.

BTW, what is "full cutoff?"
Also, bear in mind the fixtures are likely 
different so 40% higher efficiency does not 
necessarily mean 40% less installed cost. Nonethe 
less, it is a significant step toward reducing 
light pollution, even if many of us may not live 
long enough to really enjoy it. :-)

At 09:27 AM 2/13/2007, Jon S-T wrote:
>Hi all.  Listening to NPR this morning, I heard an interesting article.
>They were discussing how Cree is developing LED lighting for municipal
>use , and that Raleigh is testing it
>(http://www.cree.com/press/press_detail.asp?i=1171295242023).  The LEDs
>seem to be about 40% more efficient than conventional lighting.
>Presumably there'll be a lot of new lights going in, not just in
>Raleigh, but throughout the nation, as replacing older lights with the
>new ones will pay for itself Very Quickly.
>
>Wouldn't it be wonderful if all of the new lights were full-cutoff?
>
>It should be possible to get lighting ordinances in place which specify
>all new and replacement lighting must be full-cutoff, while
>grandfathering the old lighting.  We won't need to go after the old
>stuff, because there'll be market incentives to replace them.  All we
>have to do is make sure new lighting is good lighting.
>
>Does anyone else see this kind of potential?  Does anybody have any
>ideas about how we should go about it?
>
>Thanks.
>
>J.

TaurusTerry in Chapel Hill, NC
35° 57' N  79° 02' W

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