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Project Info COMPLETE Project Title

Dispatchable Condensor Air Pre-Coolers

Project Number DR15.20 Organization SCE End-use HVAC Sector Commercial Project Year(s) 2015 - 2018
Description
Dispatchable pre-coolers have the potential to be used for utility load management if pre-coolers can be demonstrated to be a guaranteed demand reduction resource. Building on prior work testing evaporative pre-coolers, complete a laboratory study to determine the transient response and load profile reduction of a Roof Top HVAC unit (RTU) after a pre-cooler is turned on. This data will be used to determine the potential of using RTU pre-coolers as a dispatchable load balancing resource. Secondly, a field test of the dispatchable pre-cooler technology utilizing a site with existing RTU pre-cooler installation will be completed if lab test results are favorable. As part of the field test the response time will be measured when a load-shed signal is sent as well as the economics of dispatching pre-coolers from the utility and customer perspective.
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The ETCC is funded in part by ratepayer dollars and the California IOU Emerging Technologies Program, the IOU Codes & Standards Planning & Coordination Subprograms, and the Demand Response Emerging Technologies (DRET) Collaborative programs under the auspices of the California Public Utilities Commission. The municipal portion of this program is funded and administered by Sacramento Municipal Utility District and Los Angeles Department of Water and Power.