May 2, 2007: Lime Energy to Continue Major HVAC Efficiency Monitoring Program
April 30, 2007
ELK GROVE VILLAGE, Ill. - Lime Energy will continue a successful
relationship with a retail electronics chain after helping it save more than
$700,000 a year in energy costs. P.C. Richard & Son has retained Lime
Energy's services through July 2008 following a successful initial five-year
contract in which the company reduced energy usage by nearly 4 million
kilowatt-hours (kWh) a year systemwide at the company's 50 locations throughout
New York and New Jersey.
Lime Energy initially installed a total of 350 monitoring units
known as eMAC (equipment monitor and control) units on the HVAC systems at the
50 retail stores. The energy savings are based on an average cost of
electricity of 18 cents per kWh. Energy savings at the 50 locations has removed
an estimated 2,786 tons of carbon dioxide from the air each year. The reduction
is the equivalent of permanently removing the emissions of 547 passenger cars
from the road, and the electrical energy saved is enough to power 324
households for a year.
P.C. Richard has indicated it plans to install the eMAC system in
the construction of all new retail stores.
"We are obviously very pleased with the savings we have
realized directly through the efforts of Lime Energy in installing and
monitoring the eMAC equipment at our retail locations," said Peter
Richard, executive vice president for the company, which is headquartered in
Farmingdale, N.Y. "This has been one of those unusual projects which seems
to be working better than we expected going in and, at the same time, it makes
it possible for our company to make a significant environmental
"Our monitoring equipment has been both reliable and easy to
maintain and has produced consistent results," Richard said. "Lime
Energy has been delightful to work with over the years."
Dan Parke, president and chief operating officer of Lime Energy,
said P.C. Richard has been an ideal customer with a major footprint across a
broad cross-section of the Northeast.
"This company is large enough - and the results have been
impressive enough even to us - to really communicate the message that major
energy savings are possible and are literally happening every day with the eMAC
system," Parke said.
The eMAC technology enables companies to benefit from both energy
savings and, if available, utility energy efficiency incentives using the
customer's existing HVAC systems. The eMAC itself attaches to the HVAC unit and
uses wireless control capabilities to access control software developed and
operated by Lime Energy.
The eMAC system conserves energy and
maximizes efficiency in three ways:
• It sets both maximum and minimum
temperature levels for thermostats at individual or multi-site company
• The system features nighttime setback
to automatically adjust temperatures at night and readjust before opening time
in the morning; and
• It incorporates a proprietary
technology known as PERC (premium energy recovery) which measures temperature,
reviews set points, and measures cold air in the discharge unit to develop an
algorithm to conserve the amount of time the compressor is operating.
The system includes ongoing remote computer monitoring by Lime
Energy's HVAC specialists, providing the ability to go online and analyze,
modify, or repair systems as required.
For more information about Lime Energy, visit www.lime-energy.com.
Publication date: 04/30/2007