GE Lighting Retrofit Saving Aultman Hospital $13,000 Yearly
GE’s Evolve LED lighting system has been installed on the hospital’s parking lot and parking deck, following a trial in its then newly-built employee parking lot in May 2010. Impressed with light quality and uniformity, Aultman retrofitted a second, older lot using high-pressure sodium fixtures with the same product, GE says. Thirty-two Evolve LED Area Lights replaced 52 high-pressure sodium fixtures in the lot.
Aultman’s average expense to light the HPS-equipped lot was $1,500 a month including the cost of an electrical contractor to replace failed fixtures. Since the LED conversion, the hospital’s utility bill has fallen to $400 and the hospital hasn’t placed a service call yet, GE says.
The hospital security team is particularly happy with the even lighting coverage, GE says.
GE Evolve LED fixtures use thermal management and mechanical and optical design to improve their performance, GE says. They provide an estimated 10-year service life: four times the recommended service interval of traditional high-intensity discharge lighting, the company says.
In April, GE lighting announced that a retrofit carried out at Marriott International’s headquarters in Bethesda, Md., is expected to will reduce electricity use by 860,000 kWh, or 66 percent, and save more than $120,000 in annual combined energy and maintenance costs.
The anticipated payback period for the lighting project is slightly more than two years. GE estimates energy expense savings at $104,000 per year, and maintenance mitigation at another $210,000 savings over the decade. Marriott also will receive more than $130,000 in utility rebates and EPACT savings.
In related news, administrators at a hospital destroyed by a tornado say their replacement building is 32 percent more efficient than the ASHRAE standard, reports the National Association of Farm Broadcasters News Service.
Kiowa County Memorial Hospital in Greensburg, Kan., was rendered unusable following a tornado in 2007, but as plans to rebuild began, hospital administrators began to look into the environmental impact of the new building as well as the long-term savings that could be garnered through energy efficient processes.
The hospital now has LEED Platinum certification. The healthcare center said it had to make a high initial investment, and expects a return on its investment in eight to 12 years.
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