Austin Energy’s District Cooling Program
1
ERCOT Monthly Peak Demand
2
3
Austin Energy’s Thermal Utility
An underground network of pipes providing chilled water to meet cooling requirements of multiple buildings.
Aggregation of loads enables superior efficiencies, reliability and quality when compared to stand alone systems.
Thermal storage element enables peak electrical demand management.
On-‐Site Energy Resources Plant Locations
4
Downtown District Cooling Peak Demand Shift
5
Downtown Piping Map
6
Benefits
To Customer: Eliminates capital costs, reclaims space Financially attractive alternative to stand alone system N+1 provides extraordinary reliability Simplicity – low risk
To Austin Energy, our rate payers and the City of Austin: Complements economic development New revenue stream – long term agreements Thermal storage shifts electrical demand to off-‐peak
ERCOT market savings ERCOT regulatory savings
Supports environmental stewardship
7
Mueller Energy Center Combined Heat and Power
Provides electricity, chilled water and steam to Dell Children’s Medical Center
Life safety “emergency” power
Provides chilled water to the larger urban campus of Mueller Development
8
Summary
District Cooling is one of Austin Energy’s DSM programs 114 MW/hr; up to 22 MW and still growing Dispatchable Available every day year after year Highly reliable Positive NPV Imagine Austin
9