10 Years Of TES At Nebraska

UNL commissioned its first chilled water thermal energy storage tank over 10 years ago and its second in 2018, now managing over 11 million gallons of storage capacity. This presentation will provide an overview of the system design considerations, operational and cost savings data, and demonstration of the benefits and drawbacks of operational flexibility that TES operation brings to UNL's chilled water system. Final consideration will be given to how operational dispatch of the TES tanks is changing amidst electrical rate structure changes and the increased availability of Demand Response programs.

Case Studies: UNL City and East Campus Thermal Energy Storage Tanks

Keywords: Thermal Energy Storage, Chilled Water, Demand Management

Aaron Evans, PE, CEM

Assistant Director, Operational Technology & Engineering

University of Nebraska-Lincoln

Aaron Evans, PE, CEM is the Assistant Director of Operational Technology and Engineering at the University of Nebraska-Lincoln. He oversees energy, operations, and project engineering for UNL's University Operations department, driving safety, reliability, and efficiency improvements across campus.

Charlie Griesen, MENG

Construction Coordinator/Utility Project Manager

University of Nebraska

Charlie Griesen is the Utility Project Manager for the University of Nebraska system. Charlie earned a Bachelor of Science degree in Construction Management and a Master of Engineering degree, both from the University of Nebraska-Lincoln. He is a registered Certified Professional Constructor through the American Institute of Constructors. Charlie focuses on managing utility infrastructure projects that heat, cool, and power campus facilities. He specializes in collaborating with contractors and engineers to deliver cost-effective installations with emphasis on reducing long-term operations and maintenance costs.