Excess Supply DR Pilot 2015-2016 Summary and Findings

Project Number: 
PGEDR05122017
Start Year: 
2015
End Year: 
2017
Markets Segments: 
Agricultural - Food Processing
Commercial
Commercial, Small
Industrial - Manufacturing
Residential
Project Type: 
Demand Savings
Type of Technology: 
Demand Response
Organization: 
Pacific Gas and Electric (PG&E)
Project Status: 
Applied Research
Savings Type: 
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Work

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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