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Case Study
YMCA of Greater Boston
Boston, MA
R.O.I.
10 months
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Annual Energy Savings
$17,422
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Annual Energy Reduction
109,440 kWh
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Annual CO2 Reduction
109,440 kWh
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Before:
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After:
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Full Case Study PDF
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Project Background
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The Burbank branch of the YMCA of Greater Boston is housed in a relatively young, state of the art facility in Wilmington, MA. Interested in increasing energy-efficiency, embarking on a larger green initiative, and cutting costs, the Facilities Director, Branden Lamarre, contacted the Reading Municipal Light Department (RMLD) to discuss the task of upgrading their current lighting system in the pool and gym areas with a cutting edge solution.
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The Challenge
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The (64) 400w HID Metal Halide lamps in the pool area were of particular concern. With a rated life span of 10,000 hours, a reasonable service life of 18 months could be expected. However, 1 year was the status quo, with about 20-30% failing well before the 12 month mark. So the task was: improve light levels and reduce energy usage, while increasing service life, as maintenance is a challenge.
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Our Solution
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Our initial review revealed an incorrect fixture application for the pool area, which of course tends to be damp. We chose (32) 300w IP 65 rated Induction fixtures to provide increased light levels as well as immunity to the damp/wet conditions unlike the previous fixtures.
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The Benefits
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The final result was astounding. Due to the rapid decay of the previous system, measured light levels were doubled. In addition, every (2) 400w HID lamps were replaced with a single 300w Induction fixture, reducing the ongoing energy costs by close to 70% as well as a handsome carbon-footprint reduction. The 100,000 hour life span (10x that of HID) equates to an over 15 year lamp life based on their current usage pattern, virtually eliminating maintenance. Mercury vapor, and sulfur were also eliminated, creating substantial environmental benefits, and increasing the safety of the club members. The status quo for YMCA locations is to either replace with similar technologies or retrofit with fluorescent tubes. While on the surface a fine idea, the rapid decay of HID and fluorescents make them unusable after about 5-10,000 hours, even though they are still on. Additionally, the use of old-fashioned filaments in those technologies render their service life estimates unpredictable at best.
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