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City of Knoxville - Knoxville Convention Center
Knoxville Convention Center
Showcase Project: City of Knoxville
Location
Knoxville, TN
Project Size
500,000 Square Feet
Financial Overview
Project Cost $3.46 Million
Annual Energy Use (Source EUI)
Expected
Energy Savings:
29%
Annual Energy Cost
Expected
Savings:
$164,000
Background
Led by the Mayor’s Energy and Sustainability Task Force, the City of Knoxville undertook a comprehensive energy efficiency upgrade program targeting ninety-nine City buildings, including the Knoxville Convention Center. Retrofits at the Knoxville Convention Center were completed in 2012 and estimated savings are $164,000 per year. The solar array installed on the Convention Center roof is expected to produce 118,240 kWh/yr, which at the incentivized buy back rate will generate approximately $25,000 annually for the City of Knoxville.
Solutions
The energy efficiency retrofits took roughly a year to complete once contracts were executed due to the need to work around the Convention Center’s event schedule. In addition to ESCO-prescribed energy and water conservation measures, the Convention Center was chosen to pilot a DOE-seed funded third party solar finance model, and the roof space was leased to FLS Energy, a private company, to host a 90 kW solar photovoltaic (PV) system. The electricity generated from these installations is added back to the grid and provides energy credits, a savings for both the Convention Center and the City of Knoxville.
Other Benefits
The Knoxville Convention Center will be the first building in Knoxville to undergo a complete energy efficiency upgrade with building integrated solar PV. Projects like these move the City towards reduced and cleaner energy use, and set the blueprint for future energy efficiency improvements. The third party solar financing approach can be applied across TVA’s seven-state service area and may be applicable as a model for local governments to procure affordable clean energy in other settings where a utility has a similar power purchase agreement program.