Energy Efficient Lighting Upgrades Reduces Facility Costs
Upgrading your lighting system is a fast and simple way to reduce electric consumption, improve facility appearance & aesthetics and in providing a productive working environment.
Advances in lighting technologies make it economically feasible to retrofit older technologies realizing a payback period between 12 to 36 months often without out-of-pocket expense beyond what is currently paid to utilities. Many local electric utility companies offer commercial lighting rebates to help fund material and installation costs. Database of State Utilities Rebates http://www.dsireusa.org/
Commercial lighting retrofits are a high-return low-risk investment that reduces electric consumption and extends lighting maintenance periods that help to reduce facility maintenance costs. Thanks to new technologies there are energy-efficient alternatives to older lighting systems without sacrificing light levels or quality of light. Below is an
expample of a common retrofit option found in many 12 to 15 year old office warehouse facilities.
Interior Office and Warehouse Space lighting upgrade proposal with retrofit options exceeding ASHRAE Power Density (LPD) except that the base line is no longer within ASHRAE 90.1 newest requirements.
|
Qty & Lamp Type Ballast Type |
Office Base Line
3 Lamp F34T12 CW Magnetic ES |
Office Option 1
3 Lamp F28T8/841 LowPower Electronic |
|
Warehouse Base Line
400W MH Probe Start |
Warehouse Option 1
6 Lamp T8 F32/841 HP Electronic 1.18 BF |
|
Watts per Fixture (6 Total Fixtures) |
148 watts 888 watts |
75 watts 450 watts |
|
455 watts 2730 watts |
218 watts 1308 watts |
|
Power Density (LPD) |
1.23 Awatts / sq-ft |
0.62 watts / sq-ft |
|
1.52 watts / sq-ft |
0.72 watts / sq-ft |
|
Annual Energy Cost Per Fixture |
$56.25 |
$27.75 |
|
$172.90 |
$82.85 |
Annual energy cost based on $0.10 KWH @ 3800 burn hours per year using NEMA premium ballasts except T12 system. Office fixture spacing is 8x10 & warehouse is 18 ft centers. Dynesco recommends installing a test installation to determine light levels.

