When one of the nation’s leading commercial developer of green office and industrial buildings sought to optimize the economic, energy and environmental performance of its Malvern, Pa.-based corporate headquarters, Liberty Property Trust partnered with Encelium Technologies to reduce overall lighting energy consumption by 60 percent. The real estate investment trust, which owns 77 million square feet of office and industrial space in more than 20 markets throughout the United States and the United Kingdom, used its 31,000-square-foot office building as a pilot demonstration site of Encelium’s highly advanced Energy Control System (ECS) for use in its other properties.
Originally tasked with the goal of reducing lighting energy consumption by 50 percent and delivering a payback from energy savings in less than five years, the installation of ECS yielded better-than-expected results. With an annual energy cost reduction of $10,383 or about $0.33/square foot, Liberty also achieved its payback goal in less than four years. (See case study: http://www.encelium.com/pdf/case-studies/EnceliumLibertyPropertyTrustCaseStudy.pdf)
“We wanted to use our own office space to evaluate the system and determine actual savings and whether advanced network lighting controls made sense for all of our properties,” said Fred Dougherty, Liberty’s vice president of portfolio technology. “We are very serious about reducing our carbon footprint, increasing energy performance and looking to potentially include this type of lighting control system on other LEED certification development activities.”
Liberty has almost 8 million square feet of LEED space completed or under construction nationwide. The company has been acknowledged with numerous industry awards for its initiatives to develop, retrofit and operate its buildings in an environmentally sensitive manner.
ECS seamlessly integrates and simultaneously deploys six user-friendly energy-management strategies facility-wide. These include personal controls, task tuning, daylight harvesting, smart time scheduling, occupancy sensing and load shedding. Utilizing Encelium’s Polaris software, Liberty was able to collect data on each energy management strategy, validate the savings and further optimize performance and dollar savings.
“ECS is ideal for retrofits or new construction for all buildings types, including office buildings, schools, healthcare and public facilities, parking garages, big-box retail, stadiums and warehouse space,” said Tony Marano, president and chief executive officer of Encelium Technologies. “Not only does the system create economic value and give property owners, managers and end-users unprecedented digital control, ECS also effectively and efficiently improves workplace ergonomics, occupant productivity and tenant satisfaction.”
As the most advanced lighting control solution for commercial buildings, ECS typically meets or exceeds today’s sustainable requirements for new or existing office buildings, including Title 24, ASHRAE 90.1 and is eligible for various utility rebate programs and local “green” building mandates. Designed to reduce lighting-related energy costs by 50 to 75 percent, the system also contributes between 12 to 18 points, depending on the application, toward achieving the coveted U.S. Green Building Council’s Leadership in Energy & Environmental Design (LEED).
Using the collaborative power of addressable networking technology in conjunction with advanced control hardware and software, ECS reduces lighting use and energy costs at a faster rate than other environmental measures and has an average payback on investment of two to five years. Since 2001, ECS has been installed in more than 25 million square feet of commercial space across North America and Europe. Encelium has posted a 200 percent annual growth increase during the last two years. Headquartered in Teaneck, N.J., the company also has operations in Canada and Europe.
For more information about Encelium Technologies, visit www.encelium.com.