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Draft of talking points PDF Print E-mail
Written by Steve Heising   
Jul 07, 2008 at 12:54 PM

Lighting our Buildings more Efficiently with Exiting Technology offers Triple Bottom Line impacts.  Financial returns are gained from the monthly energy cost savings. Energy Savings in lighting can be easily be 25% to 50%,  Simple Paybacks are typically 2 to 3 years. Carbon Savings and reduced power plant emissions are good for the planet.  Improved lighting quality can have health and wellness and other productivity effects which is good for people.

The opportunity to save energy in lighting retrofit requires four decisions.

1. Decide on technology based on carbon saved and industry best practices.

Super T8, T5, Pulse Start Ceramic MH, with
"Daylight" color, High CRI, High Efficiency,
Less Heat to be removed with air conditioning
Longer Lamp Life, Reduced Maintenance Costs,
Reduced Recycling and Relamping Frequency.
More Light, Less Energy, Lower Lifecycle Costs.

2. Engineering and design. . . . One for One retrofits do not solve lighting problems

Don Northrup. Academy Award for Flicker Free Lighting, Head of Engineering for the original Duratest.  Advanced T8+ Energy Saving Long Life  Low Mercury Design.  One of the original Inventors of the "Full Spectrum" fluorescent lamps

American Environmental Products - Charles Bolta - 25 years in lighting with a number of Patents and patents pending in Lighting.  Phospor blending and Electro Magnetics consultant.  

Sunwave Lighting - Retrofit Designs, Energy Modeling  and Prototyping.  Prepare Xcel Custom Efficiency, Lighting Redesign Rebate application.  Prepare Proforma Prescriptive Rebate Application. 
Governor's Energy Office Lighting Lab consultant.

3. Select Contractors, Suppliers, and Service Providors for the Installation and commissioning phases.

Once #1 and #2 are decided, selecting the contractor poses several challenges including maintaining consistency across several buildings, sites, states?  When getting multiple bids, it is always difficult to compare apples to apples.  The lowest bidder is typically not going to be the most appropriate.

4. Decide on an appropriate Funding Mechanism.

Verify Utility Rebates
3rd party financing or leasing
Energy Service Contractor
Other Incentives

The opportunity to improve the quality of the lighting involves:

1. Remove the flicker - upgrade all T12 magnetic technology now.

- All T12 become Spectrally Enhanced Super 8's or LW T8's with
High efficiency ballasts and are delamped as appropriate for the retrofit type

- All Metal Halides - Replace with High-Output High-Efficiency Highbay Fluorescents.
2. Fine Tune the Visual Brightness, Color, CRI, and other spectral characteristics.

5000K or 6500K (3-phospors).
5000K (4-phosphors).
5300K, 5700K (5-phospohors).
5550K (6-phosphors)
3. Remove and Relocate Fixtures that are Hard to Service

Avoid future knuckle boom rental.
Abandon fixtures that are directly above racks or obstructed by structure.
Or move them so that they properly light aisles and workspaces.
Consider reflectors to direct light to where it is used.
Consider a Task Ambient Stragegy in offices
Add Automatic Occupancy Daylight Harvesting and Wireless controls.
4. Improve the Visual Productivity, Comfort and Safety for tasks performed in the space.

This may be increasing light levels in underlit areas, and decreasing light levels for areas that are overlit. This can also include adding CFL or LED Task lights or CFL uplights and adding manual on, automatic off controls to allow users to select their own appropriate light levels.

Address Glare Issues. Address Cave Effect and Dark Paint and dark ceilings.

5. Improve the health and well being of people occupying the space.

Health benefits related to lighting include a number of photobiological effects
that are not well understood. Circadian Rhythms, Melationin, Stress, Sleep quyality, Calcium metabolism, Immume System Response, Seasonal Affective Disorder and winter depression are all related to the spectral quality of Light.  A third "blue" receptor in the human eye has been recently identified and linked to our biological response to light.
Last Updated ( Jul 07, 2008 at 01:00 PM )
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Lighting News: Green Ballast Daylight Harvesting 
January 11, 2013 by Energy Manager Today Staff

Bronson Sporting Goods has installed Green Ballast‘s patented daylight harvesting fluorescent light ballasts in its new Memphis location. The new ballasts are direct replacements for the existing “standard ballasts.” Each ballast includes a photocell sensor that interacts with daylight harvesting technology, allowing each Green Ballast equipped fixture to:

  • Actively measure the amount of daylight in its coverage area
  • Harvest this daylight and calculate how much fluorescent light is actually needed to provide adequate lighting
  • Adjust the power consumption of the lighting fixture accordingly
Lighting Roundup: Green Ballast Daylight Harvesting
December 13, 2012Energy Manager Today Staff

The Broadway Square Building, a twelve-story office building in downtown Kansas City has installed Green Ballast‘s patented daylight harvesting fluorescent light ballasts, replacing the existing standard ballasts.  The new ballasts adjust power consumption for each lighting fixture, while measuring and harvesting available daylight to calculate and provide only the amount of needed electricity for proper lighting. It is a “plug and play” solution and has controls within each ballast. Green Ballast expects lighting consumption costs in the Broadway Square building to be reduced by over 50 percent.