DISTRIBUTION CENTER
Case Study#1066
|  |  | Installation Summary
This Energy Audit calculates energy savings resulting from a Lighting Retrofit Program proposed for Raley's Distribution Center in Sacramento, CA. Proposed energy savings will be obtained as follows:
Lighting Conversion: Replace existing fluorescent lighting system with energy-efficient T-8 fixtures and electronic ballasts. Retrofit all incandescent lamps with compact fluorescent fixtures with electronic ballasts.
Remove all HID fixtures throughout facility and install new Sportlite Inc. series AL5-B55 2x2 fixtures furnished with up to five compact fluorescent Dulux L lamps, with electronic ballasts. | Summary of Savings
• Total Plant Lighting Energy Use Before Retrofit Project.........1,964,386 kWh/yr
• Energy Saved with Retrofit Project (incl. secondary HVAC/refrig. savings) .....963,029 kWh/yr
• Peak kW Reduced (incl. HVAC/Refrig secondary demand savings) ..............131.44 kWh/yr
• Annual Energy Dollars Saved (calculated) ....................$77,042.32
• 1 Total Project Cost.............$194,553.35
• 2 Utility Company Rebate (estimated $450/kW x 127.2 kW)= .............$57,240.50
• Total Cost to Raley’s ............$137,312.85
• Projected Rate of Return-on-Investment (%) .......................56.11
• Simple Payback Period (months) ........21.39
1) Project cost includes the following: complete lighting installation, and 2 yr lamp and ballast service, environmentallyfriendly disposal of replacement equipment.
2) See approximate utility company (SMUD) Rebate for terms and conditions. |
UNIVERSITY FIELD HOUSE
Case Study#1067
|  | The Objective
Reduce overall energy consumption while increasing general light levels and reducing “light and dark” shadowing effects at the University of Minnesota Field House. Existing fixtures are 1000 watt metal halide and 1500 watt incandescent, with total watts consumed of 190,350. |  | The Solution
Replace 1000 watt metal halide and 1500 watt incandescent fixtures with energy efficient luminaires. The fixture of choice was Sportlite’s compact fluorescent model AL5-B55 Aisleliter. Light levels were dramatically increased while completely reducing shadowing effects. Overall visual comfort of the Field House was significantly improved. Energy consumption was reduced from 190,350 watts to 80,750 watts with a realized energy savings of 57%. Additional savings were achieved through stepped dimming of individual lamps within the Sportlite luminaire. |
HOSPITAL
Case Study#1064
| | The Desert Samaritan Hospital Located in Mesa, AZ, the hospital recently completed three state-of-the-art cardiovascular surgical rooms with Sportlite luminaires. Eight 2’x2’ BXL5-B55 Lay-Ins with special, high CRI lamps ( 96 CRI - 5500k color temperature) and electronic ballasts were installed in each operating room. The results are phenomenal. The Head Nurse for Cardiovascular Surgery commented that, “since their installation, the hospital and the doctors are extremely impressed with the quality of lighting produced by the Sportlite luminaires. In fact we’ve never seen anything better.” The Surgical Nursing Staff commended that when working in the non-Sportlite surgical rooms they experienced eye fatigue and headaches (even when wearing non-glare glasses). However since the Sportlite luminaires were installed in the new surgical rooms, complaints have stopped. |  | | | LAY-IN (BXL5-B55) | | | | Sportlite vs. HID The unique form of the Sportlite luminaire uses multiple compact fluorescent lamps to provide lighting for areas traditionally lighted by HID fixtures (or strips, etc.) such as gymnasiums, warehouses, etc. The key advantages offered by the Sportlite luminaires relate to performance and safety. HID fixtures containing mercury or metal halide lamps utilize gas in a discharged tube enclosed in an outer tube. Safety hazards result if the outside fixture breaks yet the inside discharge tube remains intact and the lamp continues to burn emitting harmful ultraviolet radiation. Sportlite fixtures utilize compact fluorescent lamps and contain no significant ultraviolet radiation. Sportlite luminaires distribute light evenly where HID fixtures produce concentrated light which can create hot spots and unequal light levels. Sportlite luminaires offer excellent lumen maintenance and exceptional energy savings. |  |
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