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Project Info COMPLETE Project Title

Excess Supply DR Pilot 2015-2016 Summary and Findings

Project Number PGEDR05122017 Organization PG&E End-use Other Sector Commercial, Agricultural, Industrial, Residential Project Year(s) 2015 - 2017
Description

The Excess Supply DR Pilot (XSP) is a PG&E Pilot focused on testing the capabilities of demandside resources to increase load as a service to the grid during the times of over‐generation on transmission and/or distribution lines as well as in the case of negative prices. Consistent with CPUC policy, the Pilot does not intend that Participants simply use more energy during such periods; instead, it is intended that Participants will utilize XSP events to shift energy usage. Due to the lack of a relevant product type at the CAISO, the XSP Pilot does not register nor bid resources into the wholesale markets. Note that while negative prices and actual over‐generation do exist in practice, Pilot events were dispatched based on administrative decisions to test the overall construct of response to excess supply conditions, not based on actual grid conditions.

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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.