Hillsborough County

Trane PACT™ Agreement Saves County $1.2 Million/Year

Hillsborough County, on Florida’s west coast, serves more than a million residents, including metropolitan Tampa. The county operates more than 1.5 million square feet of building space in downtown Tampa, including the county’s administration office and four court buildings. Randy Klindworth, Hillsborough County’s Energy Manager, oversees the county mission to reduce energy consumption in all county facilities.

Challenge

While building a new courthouse, the County recognized an opportunity to centralize chilled water production for all downtown buildings. An energy efficient central plant was built in 2001, but due to a lack of capital funding, the county could not implement the necessary capacity and piping to connect the plant to all downtown buildings.

Solution

Hillsborough County chose Trane’s PACT (Performance Agreement for Comfort from Trane) program to expand the central chiller plant and implement energy saving measures in five county buildings. Trane guarantees the resulting savings from the project. To expand the chiller plant, Trane installed a thermal storage system. A new 1500-ton Trane chiller charges 84 ice tanks at night when energy rates are lower. The ice is melted during the day to produce chilled water for cooling. Underground chilled water pipes distribute cold water to the five county buildings. Two school district buildings were also connected to the piping network, generating revenue for the county from the sale of chilled water. This partnership allowed the school district to reduce construction cost of a new school by eliminating the need for chillers.

Results

Trane installed a system-wide building automation system allowing HVAC systems at all five county buildings to be monitored from one location. A condensate reclaim system captures air handler condensate that is used for cooling tower make-up, saving about three million gallons of water per year. Lighting retrofits, variable speed drives and air handler upgrades complete energy conservation measures. “The whole project, with energy and water savings, we’re looking at $1.2 million dollars a year in savings to the county,” said Mr. Klindworth. “That’s a direct benefit to our taxpayers.”

From energy efficient equipment to integrated comfort control, Trane ensures your building operates at peak performance so you can run your business profitably.

About Hillsborough County

Located midway along the west coast of Florida, Hillsborough County has 1,048 square miles of land and includes the incorporated cities of Tampa, Temple Terrace, and Plant City. The history of the county government dates back to 1846, when Hillsborough was organized as FloridaÂ’snineteenthh county. In 2004, the estimated population was more than 1,150,000 persons.

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