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Building Systems

New AC Standards Would Rank as Biggest Energy Saver in DOE History

Karen Henry

The US Department of Energy (DOE) has proposed new efficiency standards that would slash commercial rooftop air conditioner energy use by about 30 percent. The proposed standards would achieve the largest national energy savings of any standard ever issued by DOE. Rooftop air conditioners, commonly used in low-rise buildings such as schools, restaurants, big-box stores   …Continue Reading


Office Tower Sees 43% Cut in HVAC Energy Usage

Linda Hardesty

An initial two-day validation exercise at a 300,000-sq-foot office tower in Irvine, Calif., reveals that the building’s recent HVAC efficiency upgrade will provide a 43.7 percent reduction in HVAC energy usage, says Enerliance, who used its Load Based Optimization System (LOBOS) for the project. The reduction equates to a projected savings of nearly one million   …Continue Reading


Update to District Heating System Part of $40M Project

Linda Hardesty

UMass Dartmouth hired NORESCO for a $40 million infrastructure upgrade, which is being financed by the state Division of Capital Asset Management and Maintenance (DCAMM). When complete, the upgrades are estimated to save the college $2.9 million annually, reports South Coast Today. The energy contract includes the installation of building management controls, lighting and water   …Continue Reading


Indoor LED Lighting Winners: Cree, Koncept, Finelite, Acuity Brands

Linda Hardesty

The US Energy Department announced the winners of its sixth annual Next Generation Luminaires design competition for indoor lighting. Four manufacturers, covering four different indoor lighting types, were designated as Best in Class: Koncept (Monrovia, California): Awarded Best in Class for its Mosso Pro LED desk lamp (pictured). Finelite, (Union City, California): Awarded Best in   …Continue Reading


Schneider Debuts New Cooling Units for Data Centers

Linda Hardesty

Schneider Electric introduced two new cooling units for large data centers, where higher cooling capacities and optimized efficiency are required. Intended for cloud and colocation facilities, the Uniflair LE HDCV 4500, which occupies the same dimensions and footprint as the 4300 model, and the HDCV 5000 utilize a newly designed coil system and under-floor fan   …Continue Reading


Veolia Manages College’s Central Cogeneration Plant

Linda Hardesty

Veolia North America was awarded a 5-year contract with the South Orange County Community College District to provide operation and maintenance of its central cogeneration plant at Saddleback College in Mission Viejo, Calif. Following a competitive bid process, Veolia was selected to operate and maintain the central plant, including power generation equipment, the chilled and   …Continue Reading


Vortisand Helps NOLO’s District Energy Center Clean Up Its Water

Karen Henry

Enwave’s District Energy Center in New Orleans provides more than 33,000 tons of chilled water and air conditioning to more than 12 million square feet of commercial property that encompasses 15 square city blocks, including the New Orleans Regional Medical Center. After Hurricane Katrina flooded New Orleans in 2005, all of Enwave’s cooling water systems   …Continue Reading


Demystifying PACE

Jennifer Hermes

Only about 1% of the building stock in the United States is new, making the opportunity for efficiency projects in aging, energy-hog facilities an obvious opportunity. Yet, the problem with traditional financing is its lack of consideration of the actual financial impact of an efficiency project. Standard corporate loans are the antithesis of energy efficiency,   …Continue Reading


Johnson Controls Reorganizes Building Efficiency Business

Linda Hardesty

Johnson Controls is reorganizing its Building Efficiency business. Effective immediately, Building Efficiency will operate two separate businesses: 1) the North America branch business and 2) the global products business. Dave Myers, president of Building Efficiency, has resigned and is leaving the company to pursue other interests. Bill Jackson, who most recently served as executive vice   …Continue Reading


GE Encourages Telecoms to Upgrade Legacy Power Systems Gradually

Karen Henry

Ferro-resonant rectifiers have been the power supply mainstay for telecommunication central office operations for decades. Unfortunately, many of these rectifiers are reaching the end of their maximum service levels and are slowly declining in performance and energy efficiency. But even as the demand for wireless and 4G bandwidth continues to increase, facility managers are hesitant   …Continue Reading


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