Boeing Employee Tennis Club

This project consisted of replacing the Boeing Employees Tennis facility lighting on their nine indoor tennis courts. The existing lighting was comprised of 26 6-lamp T12 fluorescent fixtures per court, a total of 234 for the entire facility. The T12 fixtures were suspended at 19’ aimed at 45 degress to the floor ceiling producing an direct light source. Courtlite™ worked closely with with the local utility provider as well as the management at the facility to provide energy reduction, increase the light quality, and provide multi-level lighting controls to allow them to dim the lighting system during daytime hours when the ample skylighting would allow for daylight harvesting.

Boeing-b-a

Project scope

Courts

Pacific Energy Solutions approached this project with several objectives: Energy Reduction, Increased Light Quality, System Manageability, and substantial project funding from Puget Sound Energy the local utility provider. The Boeing Employees Tennis Club decided to install the Courtlite™ Pro lighting system, Consisting of twenty-six 8’ six lamp T5 fixtures (13 fixtures per side). The Courtlite™ fixtures were suspended 19’ to 26' above the floor, and 6’ feet beyond the sidelines. The proprietary design of the fixture allows the light source to be aimed at predetermined angles to the court for unprecedented uniformity from a direct lighting system. The existing lighting system was operating at full capacity 16 hours per day as the existing T12 fluorescent lighting had no dimming ability. Due to the multi-ballast instant ON/OFF feature, the Courtlite™ Pro fixtures are designed for several lighting levels: totally off or only 2-lamps (2,808-watts) per fixture are on when the court is vacant, 4-lamps (5,616-watts) per fixture is used during daylight hours as the facility's skylights provide additional light, and all 6-lamps (8420 watts) are used during early morning and evening hours as well as for for tournament play. The final results of this project Include: a reduction of 253,330 Kwh per year (44%) with an annual savings exceeding $16,000, and equally important, a dramatic increase in light quality.

Fixture description Existing T12 fluorescent Existing totals Courtlite™ Pro Direct Side Courtlite™ Pro Direct Center Totals
Total savings per year $16,213
Savings % 44%
Total kWh 253,330
Quantity of fixtures 234 234 78 78 156
Lamps per fixture 6 - 6 12 -
Lamp type 95-w HO - 54-W T-5 HO 54-W T-5 HO -
Watts per fixtures w/ ballast 480 - 351 702 -
Total watts 112,320 112,320 27,378 54,756 82,134
Operation hours per day 14.24 - 11 11 -
Operating days per week 7 - 7 7 -
Operating weeks per year 52 - 52 52 -
kWh per year 582,195 582,195 109,622 219,243 328,865
Cost per kWh $0.064 - $0.064 $0.064 -
kWh cost per year $37,260 $37,260 $7,016 $14,032 $21,047
Total cost $37,260 $37,260 $7,016 $14,032 $21,047