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And then there was light. Street lights ‘bloom’ when needed

By | February 24, 2010, 3:46 PM PST

Making my requisite rounds of the substainability and green technology news sites this evening and just came across this story from EarthTechling about concept lighting technology being tested in Europe called the Sustainable City Light. The idea is that by day, these light poles would be (in effect) sort of urban art objects. By night, they would “bloom” into LED street lights — triggered by motion detectors that sense when someone is walking by. The concept, by Philips (there’s a concept animation at this link), is that this approach is less wasteful than leaving the lights on all the time.

I dunno, though. As a female who peers around every corner when it’s dark, I would want to make sure that motion detector could respond instantaneously.

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Heather Clancy

About Heather Clancy

Heather Clancy is a contributing editor for SmartPlanet.

Heather Clancy

Heather Clancy

Contributing Editor

Heather Clancy has written for United Press International, ZDNet, Entrepreneur, Fortune Small Business, the International Herald Tribune and the New York Times. She holds a degree from McGill University. She is based in New Jersey.

Follow her on Twitter.

Heather Clancy

Heather Clancy

I am fascinated about how businesses of all sizes can transform their operations through technology -- not just to make themselves more efficient, but to rise above their competitors. That's the theme for my two ZDNet blogs, Small Business Matters and Next-Gen Partner. For SmartPlanet, I'm focused on profiling inspirational and controversial business leaders who have great leadership lessons to share. I also write regularly and passionately about corporate social responsibility and sustainability issues for GreenBiz.com.

Occasionally, I will pop up at an industry conference in some sort of speaking capacity. In cases where an engagement involves a sponsor that may be covered in this blog, that fact will be disclosed in coverage as appropriate.

My corporate writing work usually consists of crafting research white papers about some aspect of technology or moderating Webcasts. In the event that my commentary (in written, audio or video form) mentions a company for which I have provided consulting advice, I will disclose that fact. However, there is no connection between these projects and topics that I cover in my blogs.

She writes for SmartPlanet and is not an employee of CBS.

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RE: And then there was light. Street lights 'bloom' when needed
That is ALSO one of the reasons why the use of these CFL's as outdoor floodlights is so ludicrous. The CFL's take so long to warm up and come to full brightness, ESPECIALLY if the temperatures are below 60 degrees, that they are ineffective for outdoor motion-detector lights. Even halogen lights take several seconds to warm up to full brightness, although they can function at a lower temperature than the CFL's. Only the "old-fashioned" filament lightbulbs work as motion-detector security lights as they are the ONLY ones that are "instant on".
Posted by JTF243@...
26th Feb 2010
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RE: And then there was light. Street lights 'bloom' when needed
Philips seem to use LEDs. They instantly come to full brightness. What's the
problem?
Posted by kim@...
1st Mar 2010
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The problem: upfront cost
It's as simple as that.

Shortsighted economics that fail to take into account long term power savings - and the 75% saving in labor costs of sending out crews to change lamps 4 times (for sodium lamps) over LED lampheads.
Posted by ajb2@...
22nd Mar 2010
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