Electricity savings surpassed 11,000,000 kWh through the deployment of both the company's eMAC and uMAC energy saving and monitoring technologies at Duane Reade's drugstores, Modell's Sporting Goods, and at one of the nations largest retail bank chains. The company achieved savings that ranged between 95 and 105 percent of MPG's original projected level of energy reduction for each of the respective projects. The measurement of the savings has also at times been independently validated on behalf of MPG, its customers, and NYSERDA by Science Applications International Corp. (SAIC), one of the largest employee-owned research and engineering companies in the United States.
The achieved kWh savings equate to a removal of 18,414,000 pounds of carbon dioxide, 78,991 pounds of sulfur dioxide, and 25,960 pounds of nitrogen dioxide from the atmosphere, reducing emissions which cause smog, acid rain, and global warming. This is equivalent to removing 2,598 passenger cars from the road for one year, avoiding the consumption of 1,367,059 gallons of gasoline, and 27,913 barrels of oil.
"We have worked diligently to deliver the projected energy saving performance results to our customers," stated Len Pisano, MPG president. "Having the NYSERDA engineering team in the equation from the outset was a benefit to all involved. MPG is committed to performance at the highest levels and we welcome the expertise and due diligence of NYSERDA. Since we monitor HVAC and lighting 24/7/365, we have a sustainable energy management plan that protects our customers from inefficiencies that would otherwise hurt their bottom line."
The eMAC controllers are connected between the existing thermostat and the HVAC unit or tied in to contactors in the case of lighting systems. The eMAC monitors over 140 points of an HVAC systems operation on a typical direct-expansion (DX) unit. These monitored points are then captured in real-time and broadcast over a wireless satellite network, connecting directly to MPG's servers, where the data is then configured for Web access. Data is captured on 15-minute intervals and stored indefinitely. The data is used to diagnose operational problems and to optimize system performance. With eMAC, Citibank is now able to establish and monitor unit operating hours, taking into account the rate of cooling and heating required to achieve desired space temperatures, thus limiting compressor runtime within established limits.
For more information about Lime Energy and Maximum Performance Group, visit www.lime-energy.com.
Publication date: 10/02/2006