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Politics : Rat's Nest - Chronicles of Collapse -- Ignore unavailable to you. Want to Upgrade?

To: Wharf Rat who wrote (11774)	2/1/2011 9:04:15 AM
From: Wharf Rat	Read Replies (1) \| Respond to of 24225

Here's what I'm talkin' about...has a few photos.. HereinHalifax on January 31, 2011 - 11:36pm Re: LED Lights Beat Wind Power in Picks for HSBC, Merrill I received a call earlier today from a large commercial property developer who wants to convert the lighting in a six story parking garage to LEDs. Currently, there are some nine hundred 150-watt high pressure sodium fixtures, a hundred or so 175-watt metal halides and an indeterminate number of 70 and 100-watt HPS fixtures. They were surprisingly candid and told me that they're not too overly concerned about cost savings or what incentives and rebates may be available, or even the total capital outlay -- basically, they said they would like to be seen as good corporate citizens and environmentally conscious[]. The other motivating factor is their desire to enhance personal comfort and safety. The existing HPS lighting paints everything in shades of orange and grey and makes for a rather dreary looking environment; witness the picture I took earlier this evening: LED lighting is closer to daylight in appearance; consequently, visual acuity is greatly enhanced at low light levels (20 to 30 lux) and colours and faces are more easily discernible. It should make the parkade a little more cheerful and hopefully a measure more comfortable, especially for women who may be working late at night. As I was leaving, I noticed that they had already installed two LED fixtures at one of the exits (this part of the garage is currently undergoing renovations and hence the temporary boarding): The fixtures are slim and attractive. I have no idea of the wattage, but they produce a generous amount of light and their forward and side throw is quite good. My partners and I haven't had enough time to get our heads around this, but we're considering a recently announced 70-watt LED fixture as a possible replacement for their 150-watt HPS and 175-watt metal halides (190 and 205-watts with ballast). These fixtures operate 24/7, so the savings per fixture would be 1,051 and 1,183 kWh/year respectively. As a rough guess, our total energy savings if this retrofit should ultimately go ahead could exceed 1.5 GWh a year and this in turn would reduce the client's CO2 emissions by roughly 1,250 tonnes per annum. Cheers, Paul [] This parking garage is shared by three Class A office towers and a shopping mall; the buildings are approximately 40 years in age and the architectural style, typical of its day, is brutalist. Initially, I was somewhat sceptical when told not to get overly hung up on the financials and having thought this over, I now suspect the primary driver could very well be tenant retention -- in effect, holding your ground against the competition. theoildrum.com