2008 program
AlwaysOn GoingGreen 2008
2007 archives
AlwaysOn GoingGreen 2007
Programs by EcoWorld
Send an
Electronic
Postcard
by Ed Ring on 09/07/08
LeGrandOiseau: You make a
good point about Europe -
but in Europe every work...
by LeGrandOiseau on 09/07/08
Most European countries have
high levels of union
membership, and some of th...
by accuracy in... on 09/06/08
[...] framed as a moral
issue, and debate?is no
longer politically correct...
by BACK to BALA... on 09/06/08
[...] Sofia-Albertina kan
hon möjligen heta, eller
är det möjligen...
by sfs on 09/06/08
pls ask ed ring to contact
me re desmogblog
by Kate on 09/06/08
Thank you for this writeup.
I've written about this "On
the Ballot Propostion 7" a...
by mak on 09/06/08
As we know that ethanole
making plant is very
costly,if EFUEL CORP laun...
EcoWorld Commentary
Ed Ring,
Editor-in-Chief
Daniela Muhawi,
Editor-at-Large
Contributing Editors
(comments are welcome)

Maps & Information




Today is Monday September 08, 2008
Editor's Commentary

Lumens vs. Energy

Posted on: September 15th, 2007 by Ed Ring

There is a group in the USA (and elsewhere) known as the International Dark Sky Association who, since 1988, have been advocating not carbon reduction, but lumen reduction.  With over 11,000 members - over 1,500 in California - the International Dark Sky Association has some clout.

Nonetheless, “glare bombs” are still available in bulk and can still be easily and inexpensively purchased (by anyone with an exterior wall on their dwelling) at the nearest big box retail outlet, and when deployed these always-on security lights, especially using flourescents, consume minimal energy and produce extremely maximal lumens.  In fact, in spite of their energy sipping ways, just one of these security lighting fixtures could, if placed on the surface of the moon, be visible with a 20x telescope from earth.  At least in a sufficiently dark location on earth.

But dark skies are only part of the mission of the International Dark Sky Association.  They also lobby for smarter lumen management on the part of cities and other entities.  After all, if excessive lumens from a “glare bomb” actually creates dark shadows, where unauthorized intruders can hide while surveying in full light the night surroundings, why have more lumens?  Why would anyone want side-mounted always-on visible-from-the-moon night security lighting - who knows how many lumens - when a 10 watt incandescent would be more than enough to light the way?

If excess lumens temporarily blinds the rods (night vision receptors) in our retina, and creates no real benefit other than countering other excess lumens, why not have smarter lumen related laws and ordinances in our cities?  Such a perspective applied - and even if incandescent / fluorescent indifferent would still reduce energy usage - would also help in creating night spaces that are inviting as well as secure.  Light pollution is here, it is real, it is now, and the International Dark Sky Association intends to continue to do something about it.

This entry was posted on Saturday, September 15th, 2007 at 12:06 am and is filed under Buildings, CleanTech, Electricity, Energy. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Lumens vs. Energy”

  1. Colbs Says:

    The IDA is a cool association, I have been a member for over a year. Their mission is part of common sensed light use that a lot of people don’t seem to have. There are many products that are dark sky friendly in many styles. I think everyone should try new LED, or CFL lighting coupled with dark sky rated fixtures to help our Earth with unnecessary light waste. Whether it is lumens or energy it shouldn’t be wasted.

Leave a Comment

*
To prove you're a person (not a spam script), type the security word shown in the picture. Click on the picture to hear an audio file of the word.
Click to hear an audio file of the anti-spam word

Search

Recent Posts


Categories


Archives

September 2008 (1)
August 2008 (6)
July 2008 (10)
June 2008 (7)
May 2008 (12)
April 2008 (10)
March 2008 (23)
February 2008 (11)
January 2008 (12)
December 2007 (17)
November 2007 (12)
October 2007 (18)
2008 (92)
2007 (127)
2006 (102)

Links

Profitable Reforesting
AUTO SHIPPING
New Hybrid Cars
Toyota Prius
Cheap Gas Prices
Latest Hybrid Cars
GreenBuzz Newsletter
Tree Bank
Sustainable Land Development Today
Treelink.org