Lighting Roundup: GE Streetlighting; Philips Digital-Control LEDs; Honeywell LEDs in China; Acuity LEDs
The Borough of Tarentum in Western Pennsylvania is converting 100 percent of its street lighting to GE’s new Evolve LED Scalable Cobrahead fixtures with dimmable photocells. The retrofit of 430 streetlights (pictured) will save Tarentum approximately 66 percent in annual lighting energy and maintenance costs, equaling about $40,000 based on a $.10 kWh rate and 4,000 hours of operation a year. The borough used financing from GE Capital, with a lease-to-own arrangement that applies the city’s monthly street lighting savings of $3,200 toward its LED lighting purchase. Also, Tarentum was receiving frequent calls to respond to streetlight outages with resulting labor totaling $20,000 a year. The LED lights, with a 50,000-hour rated life, will help alleviate that expense.
Philips Color Kinetics’ new IntelliPower delivers high-bandwidth LED lighting control using existing electrical and physical infrastructures. IntelliPower helps deploy digitally controllable LED lighting in any situation where re-wiring is not desirable or feasible, including historic buildings, in-ground systems, bridges, and monumental exteriors. The software employs high bandwidth, bi-directional, Ethernet speed data transmission. Philips recently debuted IntelliPower to re-light the towers on Boston’s Leonard P. Zakim Bunker Hill Memorial Bridge with intelligent, color-changing LED lighting fixtures. With the push of a button, the Massachusetts Department of Transportation can change the colors and intensity of the lights as well as display dynamic, color-changing light shows, while at the same time reducing energy consumption by more than 80 percent over the previously installed conventional lighting system.
China is rapidly phasing out the import and sale of general fluorescent lighting, and Honeywell is benefiting from the transition by supplying Walmart stores with its Ex-Or LED lighting. Walmart previously implemented the lighting technology in 100 stores and is now retrofitting an additional 40 stores across China. At the completion of the project, approximately half of all Walmart stores in China will be outfitted with the Honeywell lighting systems. The latest retrofit project is worth approximately $12 million. With the LED lighting, each Walmart store can cut its annual electricity consumption by around one million kWh, representing a savings of approximately 50 percent of electricity expenses on lighting.
The Iowa Public Employees’ Retirement System (IPERS) reduced its electrical load by 70 percent by installing Lithonia Lighting’s RT Series LED luminaires from Acuity Brands. The installation helps IPERS meet both its short-term energy savings goals for its 43,000-sq-foot building, as well as position IPERS to achieve its long-term goal of operating as a net-zero energy building. Through integrated lighting and controls, IPERS experienced a $12,000 reduction in energy costs over the same three-month period from the previous year.
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