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Several different energy conservation savings the City will realize include photovoltaic system was also installed on
measures have been implemented equipment standardization and a the roof of the building to help reduce
by Ameresco that range from simple reduction in maintenance costs. the center’s carbon footprint.
traditional conservation efforts such
as energy efficient lighting, water One of the buildings that received ESCOs have been implementing
conservation and weatherization, to energy upgrades was the Knoxville comprehensive energy efficiency retrofit
more capital intensive improvements, Convention Center. In 2013, the projects over the last three decades and
such as upgrades to building comfort improvements resulted in the center a recent Lawrence Berkeley National
control systems, boiler replacements, receiving a LEED Silver Certification Laboratory report estimates that
and HVAC improvements. Renewable for Existing Buildings from the U.S. ESCO investment in energy efficiency
measures, like solar hot water heating Green Building Council. Upgrades undertakings currently runs about $5
systems and a photovoltaic energy included new energy efficient boilers, billion a year. Since 1990, ESCOs have
generation system, are also included a 30-ton air cooled chiller, window delivered $50 billion in guaranteed and
for several buildings. Among the cost film, a new domestic hot water system verified savings resulting in 470 million
and LED lighting. A 120-kilowatt solar avoided tons of carbon dioxide.
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