- Facility Manager, Nome Alaska »
- Facilities Project Coordinator »
- Engineer - Costa Mesa, CA »
- JOURNEYMAN ELECTRICIAN »
- Assistant Director of Facilities Position! »
Parking Garage Slashes Energy Use with T5 Retrofit
April 15, 2009 - Lighting
The State of Arizona’s Property Management Company, Opus West, wanted to reduce maintenance and lighting costs for some of their parking garages, which used HID fixtures. Opus turned to Magnaray for a solution.
Magnaray recommended using a 106 watt parking garage unit, that comprises two 50-watt, twin T5 lamp housings with one remote ballast to replace two 175-watt metal halide units in each six-car parking bay. This system provides superior lighting, with less glare and truer color, plus instant-on capability, which can enable motion sensing to achieve added energy savings.
The advantage is that the T5 systems are relatively the same to HID in terms of initial costs, according to Magnaray. But with twin T5 lamps and program start ballasts, the fluorescent lamps have a longer life expectancy of 40,000-45,000 hours with 12-24 hour burn cycles. Total consumption for the two-unit assembly is 106 total watts per bay, less the one-third of the 390-watt consumption of metal halides, the company says.
Mark Stromgren, Chief Engineer for Opus West, says that while the improved light quality makes people safer and more secure, the big payoff is better light quality, with a 70 percent savings in energy, and 50 percent savings in maintenance, which is expected to pay for the HID-to-fluorescent lighting conversion in less than 2 years.
The State of Arizona has since mandated the use of this instant-on fluorescent system for all future parking structures.
Critical power can be a matter of life or death in health care facilities. To guarantee a reliable flow of electrical power, a hospital’s critical power supply and all its components must function properly and automatically, even under harsh conditions
So far in the relatively short life of the LEED for Commercial Interiors (LEED-CI) rating system, most users have employed it to certify small spaces, like a single floor of a multitenant facility or a sales showroom.
On a campus that uses LEED Silver as its standard for all new buildings, the recently renovated Global Institute of Sustainability facility at Arizona State University needed to stand out even more.
The 500 physicians of Crittenton Hospital Medical Center in Rochester, Mich., work with cutting-edge technology every day. For a long time, the same could not be said for maintenance and engineering managers inside the medical center. But a recent upgrade to the facility’s HVAC system has improved the medical center’s energy efficiency and its bottom line.