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.
Project scope
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 |