For SGIP, marginal grid emissions are reported by balancing authority and independent system operator subregion. These grid regions represent the entity which controls grid operation within that territory. CAISO is the largest balancing authority within California and includes three subregions, the Default Load Aggregation Points (DLAPs), where marginal emissions are reported. Outside of CAISO, each subregion included in the API is a balancing authority. Utilities that are not directly listed fall into one of the outlined grid regions. To identify the grid region a project is located in, please use the second table on this page which lists the grid region for each electric utility.
Grid Regions & Electric Utilities
Grid Region
Abbreviation
CAISO San Diego Gas & Electric DLAP
SGIP_CAISO_SDGE
CAISO Pacific Gas & Electric DLAP
SGIP_CAISO_PGE
CAISO Southern California Edison DLAP
SGIP_CAISO_SCE
Los Angeles Department of Water & Power
SGIP_LADWP
BANC Sacramento Municipal Utility District
SGIP_LADWP
Balancing Authority of Northern California
SGIP_BANC_P2
Imperial Irrigation District
SGIP_IID
PacifiCorp West
SGIP_PACW
NV Energy
SGIP_NVENERGY
Turlock Irrigation District
SGIP_TID
Western Area Lower Colorado
SGIP_WALC
To identify which grid region a project is located in, please refer to the following table, which indicates the grid region of each electric utility in California. Projects served by Community Choice Aggregators should use the grid region of the IOU they are located in.
Electric Utility
Grid Region
Pacific Gas and Electric Company (PG&E)
SGIP_CAISO_PGE
San Diego Gas & Electric (SDG&E)
SGIP_CAISO_SDGE
Southern California Edison (SCE)
SGIP_CAISO_SCE
Alameda Municipal Power
SGIP_CAISO_PGE
Anza Electric Cooperative, Inc.
SGIP_CAISO_SCE
Azusa Light and Water
SGIP_CAISO_SCE
Bear Valley Electric Service (BVES)
SGIP_CAISO_SCE
Biggs Municipal Utilities
SGIP_CAISO_PGE
Burbank Water and Power
SGIP_LADWP
CCSF, Power Enterprise of the San Francisco Public Utilities Commission
SGIP_CAISO_PGE
City of Anaheim
SGIP_CAISO_SCE
City of Banning
SGIP_CAISO_SCE
City of Cerritos, Cerritos Electric Utility
SGIP_CAISO_SCE
City of Corona, Department of Water and Power
SGIP_CAISO_SCE
City of Healdsburg, Electric Department
SGIP_CAISO_PGE
City of Industry
SGIP_CAISO_SCE
City of Lompoc, Electric Division
SGIP_CAISO_PGE
City of Needles, Public Utility Authority
SGIP_WALC
City of Palo Alto, Utilities Department
SGIP_CAISO_PGE
City of Pittsburg, Pittsburg Power Company Island Energy
SGIP_CAISO_PGE
City of Riverside, Public Utilities Department
SGIP_CAISO_SCE
City of Shasta Lake
SGIP_BANC_P2
City of Ukiah, Electric Utilities Division
SGIP_CAISO_PGE
City of Vernon, Gas & Electric Department
SGIP_CAISO_SCE
Colton Public Utilities
SGIP_CAISO_SCE
Eastside Power Authority
SGIP_CAISO_SCE
Glendale Water and Power
SGIP_LADWP
Gridley Electric Utility
SGIP_CAISO_PGE
Imperial Irrigation District (IID)
SGIP_IID
Kirkwood Meadows Public Utility District
SGIP_CAISO_PGE
Lassen Municipal Utility District
SGIP_CAISO_PGE
Lathrop Irrigation District
SGIP_CAISO_PGE
Liberty Utilities (a.k.a. CalPeco for California Pacific Electric Co.)
SGIP_NVENERGY
Lodi Electric Utility
Lodi Electric Utility
Los Angeles Department of Water & Power (LADWP)
SGIP_LADWP
Merced Irrigation District (MeID)
SGIP_TID
Modesto Irrigation District (MID)
SGIP_BANC_P2
PacifiCorp
SGIP_PACW
Pasadena Water and Power
SGIP_CAISO_PGE
Plumas-Sierra Rural Electric Cooperative
SGIP_CAISO_PGE
Port of Oakland
SGIP_CAISO_PGE
Port of Stockton
SGIP_CAISO_PGE
Power and Water Resources Pooling Authority (PWRPA)
SGIP_CAISO_PGE
Rancho Cucamonga Municipal Utility
SGIP_CAISO_SCE
Redding Electric Utility
SGIP_BANC_P2
Roseville Electric
SGIP_BANC_P2
Sacramento Municipal Utility District (SMUD)
SGIP_BANC_SMUD
Shelter Cove Resort Improvement District
SGIP_CAISO_PGE
Silicon Valley Power (SVP), City of Santa Clara
SGIP_CAISO_PGE
Surprise Valley Electrification Corporation
SGIP_PACW
Trinity Public Utilities District (PUD)
SGIP_BANC_P2
Truckee Donner Public Utilities District
SGIP_NVENERGY
Turlock Irrigation District (TID)
SGIP_TID
Victorville Municipal Utilities Services
SGIP_CAISO_SCE