Third Party Independent Report
Lighting Services Inc., Scottsdale, Arizona, a third party independent research firm, validates the EnerLume-EM® energy savings at 14.2 to 15.6%. For an explanation and results of the test click on the following link. Lighting Sciences Validation Test
Case Studies
Large Education Facility
Central New England
This two year old public school was originally built using four lite T-8 fluorescent fixtures with occupancy sensors in each room. The school typically has the lights on from 7:00AM to nearly 11:00PM weekdays and a half day on Saturdays. With an electric rate exceeding $0.14 kwh, a 200 amp, 277/480v EnerLume|EM® was installed on a first floor dedicated lighting panel and connected to like panels on the second and third floor. Overall building savings exceeded 10% of the total load and the lighting panel savings exceeded 18%. Ft/c loss was imperceptible at just under 2 ft/c. The ROI was calculated at 14 months.
Public Warehouse
Southern New England
It is a 465,000 sq, ft. public storage facility that contained 464 - 400w HID's incurring an exorbitant monthly electric bill. We recommended and installed six lite T-8 fluorescent fixtures with mirror reflectors and occupancy sensors on each fixture. Four EnerLume|EM® 100 amp, 277/480v Energy Managers were also installed. Overall utility savings was 78% and the EnerLume|EM®'s accounted for more than 15% of that savings. The utility incentive was approximately 50% and the ROI came in at less than 17 months.
Hospital Complex
State of New York
We installed a 100 amp, 277/480v EnerLume|EM® in an electrical closet servicing one floor of an eight story research building. Prior to the installation, the normal hours of operation that the T-8 fluorescent lights remained on were 6:00AM to 11:00PM weekdays and half days on weekends. The department relied on the "last person out" to shut off the lights, but that was rarely achieved. Therefore, the 400+ fluorescent fixtures typically remained on 24/7. Upon installation of the EnerLume|EM®, we achieved a sustainable 30% savings in kwh with the lights on and an overall 50% savings over a 24 hour period by programming the unit to shut lights off from 11:00PM to 6:00AM. There was less than 1% loss in ft/c. Considering that the utility rate was over $0.21 kwh, the ROI was measured in months.
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