Portfolio | Capitol Campus Chilled Water District Energy Plant

Powerful upgrades

Project Overview

Upgrade chilled water District Energy plant systems for Washington’s 1920’s era capitol campus.

Markets
Services Performed
Location
  • Olympia, WA

The Washington State Capitol is like many other capitols across the country: it is comprised in a campus setting consisting of over 20 buildings that were constructed as far back as 1920. Given the aging campus infrastructure, the Department of Enterprise Services (DES) partnered with UMC to perform a comprehensive economic & technical analysis to determine the best course of action to provide a new, efficient district cooling system…and to prepare the campus for continued growth over the coming years. The resulting project included:

- Installed a new 750-ton Smardt chiller with Turbocor compressor technology. This chiller is one of the most advanced units available and provides unequaled efficiency over the full range of cooling loads.
- Completed a re-designed and remodel of both the CHW & CW pumping systems to provide full variable flow operation, controlled with Danfoss variable frequency drives.
- Installed a new central control system that provides the “brains” for the entire cooling plant…to make sure it continually operates at peak efficiency
- Replaced an old 4160-volt electrical service & transformer with a new, safer and more efficient 480-volt service.

Results? The resulting system operates at a total plant energy usage of less than 0.6 kW/Ton (including chillers, pumps & cooling tower fans). This facility will function in the top 5% of current chiller plants…with an overall energy savings of over 40% when compared to the baseline operation Win-win!

$112,000

PSE utility incentive

40%

Operating efficiency improvement

Top 5%

of chiller plans in terms of operating efficiency

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