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Projected to save TECO and its customers more than $200 million over the next 15 years, the expansion included installing a 48-megawatt (MW) combined heat and power (CHP) unit and adding 32,000 tons of new chiller capacity; an 8.8 million-gallon stratified thermal energy storage tank; distribution piping; and a new operations support facility featuring a state-of-the-art control room. The company now has 120,000 tons of cooling capacity, which is enough to cool the equivalent of 30,000 homes.
“Texas Medical Center has a master plan that projects significant campus growth in the next decades,” said Dr. Richard Wainerdi, president and CEO of the Texas Medical Center. “To help meet the demand, TECO has expanded its service to new medical facilities in the Texas Medical Center and also installed equipment that make it better prepared to continue service even when tropical storms and hurricanes threaten our institutions. That’s vitally important, as patient care, research, and education cannot be compromised.”
The expansion’s focal point is the new CHP unit, which doubles TECO’s operating efficiency to 80 percent and will enable it to reduce carbon dioxide emissions by 302,000 tons annually compared to previous operations.
“Last August we celebrated completion of our new combined heat and power plant,” said Steven K. Swinson, CEO and president of Thermal Energy Corp. “Admittedly it was quite an achievement. Yet today we are announcing the completion of our entire expansion project - on time and under budget - with many thanks to Burns & McDonnell. We just put the finishing touches on the building that houses eight new chillers. It’s the addition of these chillers that makes us the nation’s largest district cooling system. Yet we have an even greater vision, as we have the ability to add more cooling capacity in the very same building. We are ready for the future.”
Supported by $10 million in U.S. Department of Energy (DOE) funding made available through the American Recovery and Reinvestment Act of 2009, the project has been recognized for its achievements by the DOE, which has actively promoted and supported development of CHP and district energy systems as a strategy to achieve U.S. energy independence and reduce greenhouse gases. The TECO project created or sustained more than 1,000 direct and indirect jobs in manufacturing, engineering, and construction. Approximately 400 of those jobs were dedicated to construction of the CHP system.
Burns & McDonnell provided engineering, procurement, and construction services for the TECO Master Plan Implementation Project, beginning in August 2007. Construction began in January 2008.
“We congratulate TECO and its excellent staff for completing a project that we know will become a model for planning and developing on-site energy facilities throughout the world,” said Greg Graves, Burns & McDonnell chairman and CEO. “We deeply appreciate the confidence and trust TECO has shown in Burns & McDonnell as we worked in partnership to complete the Master Plan Implementation Project.”
TECO’s existing district energy system is now connected to its new combined heat and power system. Combined heat and power is an efficient, clean and reliable approach to generating power and thermal energy from a single fuel source. Standard power plants effectively use just one-third of the fuel they burn to produce electricity. Two-thirds of the fuel used to produce electricity ends up being rejected or “wasted” up the smokestack. By using this waste heat - effectively recycling it - to provide heating or cooling, efficiencies go up and emissions go down. CHP systems also greatly improve power reliability and power quality because they do not rely on electricity from the grid.
In TECO’s case, electricity and waste heat from the new natural gas-fired CHP plant are being used to produce steam and chilled water, which are piped underground to more than 18 million square feet of customer buildings at 18 institutions on the medical center campus. Surplus electricity from the plant can be sold to the regional utility grid.
For more information, visit www.burnsmcd.com.
Publication date: 05/23/2011