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Changing Lights at CU's UMC
Written by Steve Heising   
Jun 03, 2009 at 01:12 PM
UMC Fountain The University of Colorado's University Memorial Center, Boulder Colorado.   The UMC is LEED EB Silver certified.   Daylighting is an option on days like this.  Note that the blue color in Boulder is a lot bluer say than daylight in NY or LA

http://umc.colorado.edu/quicklinks/documents/LEED_Silver_Rank_award.pdf

Sunwave Lighting demonstrated a 5 watt per hour savings to the operations and maintenance staff.  We compaired low wattage Sunwave 5550K 93CRI lamps with the replacement lamps 3500K and 4100K that they had been using for relamping existing T8 fixtures with existing electronic ballasts.   They immediately noticed the difference in color and brightness in addition to the energy savings shown on the meter.   

So they started installing the 5550K 93 CRI lamps in the basement in a couple offices that do not have windows.  As a test.  They they installed some in the Environmental Center.  Next they relamped the Student Offices on the 3rd floor.  Then in more offices and public meeting rooms and hallways.  Then began relamping of some of the public areas.  including a under lit portion of the first floor dining area on the east side.  This area is underutilized perhaps because of low the light levels even though it has windows.  They even found some old 4 lamps T12 fixtures and have upgraded these to 2 lamp Sunwaves.  Sunwave Lighting also supplied 5000K CFL's and retrofits for expensive Ubend lamps to 2 foot F17 T8 retrofits to update hallways to spectrally enhanced technology.  We calculated the simple payback on the incremental investment to be 1.25 years with 4 more paybacks at 24,000 hours and $ 0.10/kWh. 

Last Updated ( Jun 03, 2009 at 02:33 PM )
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Lighting Redesign and Retrofit for Blue Mountain Arts
Written by Steve Heising   
Feb 18, 2010 at 01:45 PM
We have just completed a Sopectrally Enhanced lighting redesign and retrofit for Blue Mountain Arts here in Boulder.  We retrofitted T12 and 400 Watt Metal halide lighting for 235,000 square feet in four buildings.  Like many of our existing buildings, uses in the facility have changed several times as tenants and owners have changed.  A simple fixture by fixture retrofit was not going to solve some fundamental problems with the lighting system.   Since typical utility demand side utility programs dont rebate for disabling fixtures, and since our Utility, Xcel Energy now offers lighting redesign rebates, (where they will rebate up to 75% of the costs for the lighting redesign study, we figured we had nothing to lose.   The total cost for the retrofit for four buildings was ~$180K  but we were able to get ~$60K back from Xcel Energy in rebates by taking advantage of Xcel's Lighting Redesign Program.  (The prescripitve rebates without the Lighting Redesign program would have been only ~$30K).  We were able to get the lighting power density for their warehouse down from ~1 watt per square foot to 0.44 watts per square foot.  This is a 66% savings.  As Spectrally enhanced lighting saves 20% more we set our target for 0.55 watts per square foot (as prescribed for Warehouses by the Energy Policy Act of 2005)  In addition we implemented occupancy sensor switching for their warehouse aisle application that automatically turns most of tha aisle lights off (in the aisles that are unoccupied much of the day) more than 50 percent of the time which will save even more money in kWh that is not reflected in the lighting power density. 
Last Updated ( Feb 25, 2010 at 02:05 PM )
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Changing a Light Bulb at BCH
Written by Steve Heising   
Sep 05, 2007 at 11:17 PM
Boulder Community Hospital's Foothills Campus is the first LEED certified hospital in the nation. Kai Ablekis, Environmental Manager, takes us on a tour. This segment demonstrates several convenient answers related to changing a light bulb at the BCH hospital(s).  Change a light, change a hospital, change a town, change the world.  

Or see it on YouTube http://www.youtube.com/watch?v=fFW4l0XV5bE

The department of surgery manager Julie Moyle has a different take,  It is easier to see.  The docs, especially the facial plastic surgeons, like the light.   It is easier to see slight variations of color.   Julie remarks, "When the staff leave the areas lit with the spectrally enhanced Sunwave lamps, it is like getting instant cataracts."  She has also been looking into at staff sick days or other human resources benefits fewer headaches, fewer sick days etc.  fewer mistakes... While this is not a scientific study, there is some indication that the lighting may be having a beneficial effect. 

Not all the lighting in the LEED certified hospital has been changed to spectrally enhanced lighting, but some of the lighting in the other campuses has also been changed to Sunwave 5550K 93CRI, so it works at newly LEED certified hospitals and at existing facitilites in the areas where visual acquity and color discriminiation are critical.

For these applications, they are continuing to see the light so to speak, even though the lamps cost slightly more than the generics that they had been using.    This project involved small incremental investments, starting in a dimly lit storage room and now in basement and other offices without windows, in the ERs, ORs, sterile storage rooms, Mom and Well Baby Unit, the Pharmacys and the Nursing Stations are lit with Sunwave's T8 Plus, Low Wattage, Extra Long Life, Spectrally Enhanced "Full Spectrum" lighting. 

Read more of the story at Change Agents dot com.  http://www.changents.com/change-agents/sunwavelighting/story 
Last Updated ( Jul 08, 2009 at 11:22 AM )
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Secretary of Energy Urges Lighting Upgrades

LightNOW News is published for Lightsearch.com by
ZING Communications, Inc.
Editor: Craig DiLouie

Posted December 15, 2008

More than $50 billion is being wasted each year by the owners of 2.8 million U.S. commercial, industrial, and institutional buildings that rely on outmoded lighting systems that waste energy and money.


In a letter to building industry leaders, Samuel W. Bodman, Secretary of the U.S. Department of Energy, wrote, “More than 75% of the Nation’s five million commercial, industrial, and institutional buildings were built prior to the introduction of many groundbreaking energy efficient technologies currently available today. These buildings consume nearly 900 billion kwh of electricity, at a cost exceeding $115 billion each year. While cost-effective lighting technologies are available now to cut energy costs by up to 50%, only 25% of the buildings have been upgraded.”

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