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District Energy System

CNE Ninth Annual Report

Constellation NewEnergy, Inc. (CNE), operator of the Metro Nashville District Energy System (DES), is pleased to present the ninth “Annual Report” to the Metropolitan Government of Nashville and Davidson County, Tennessee.


This report summarizes activities related to environmental, health and safety issues, sales and marketing activities, customer service, fuel procurement, finance and the overall performance of the system for the past twelve months.

DES Annual ReportThe system, which is made up of two basic parts, the Energy Generation Facility (EGF) and the Energy Distribution System (EDS), was operated in an excellent manner by an exceptional, fully staffed, work force that produced outstanding results. The availability and reliability of both steam and chilled water was above 99% again this year. There were no scheduled outages and negligible upsets, so short in duration they are not required to be reported, were included in the reliability calculations. CNE’s contractual efficiency guarantees continue to be met. Everyone associated with the district energy system benefits from efficient operations through lower utility costs and energy savings.

During the fiscal year July 1, 2011 through June 30, 2012, CNE continued to have a perfect environmental record with no excursions or violations. All verification data, records, reporting requirements and submittals were kept up to date and in order. A corporate Environmental Compliance Audit was conducted in April 2012 by a third party consultant. I am proud to report that the plant received an audit opinion of 1, the highest score possible, with no findings or observations of environmental non-compliance.

The Nashville Hyatt Place Hotel, constructed near the new Music City Convention Center, signed on as a new DES customer during this fiscal year, and the new Music City Center continued construction toward completion.

On March 12, 2012, Constellation Energy Group merged with Exelon Corporation. Constellation is now a wholly-owned subsidiary of Exelon. The retail business will continue to operate under the Constellation name. The merger did not change any existing contracts or legal documents. The services previously provided under the CEG umbrella are now being provided by Exelon. The same Constellation Energy personnel will continue to operate the DES and conduct business as usual.

Full 2011-2012 Annual Report