Grid connection · Contra Costa County, California, United States

Allegheny Energy Storage grid connection (CAISO 1872)

Allegheny Energy Storage grid connection (CAISO 1872) is a planned grid connection in Contra Costa County, California, United States, with 325 MW of capacity, connected by California Independent System Operator Corporation.

Facts

Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.

FactValueSource
Name in the sourceALLEGHENY ENERGY STORAGE grid connection (CAISO 1872)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
LocationContra Costa County (connects at Pittsburg 115 kV)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
StatusPlanned (active; interconnection agreement executed, cluster C14)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
Capacity325 MWCAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
TechnologyStorage (registered as Storage Battery)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
Grid operatorCalifornia Independent System Operator CorporationCAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
Queue date15 Apr 2021CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
Connection date20 Sept 2032 (proposed)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026

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Latest events

Dated events about this grid connection from official notices and registers, newest first. All recent changes.

  1. Entered the connection queue

How it compares

Allegheny Energy Storage grid connection (CAISO 1872) is the 138th-largest of 487 grid connections in California and the 709th-largest of 4,021 in the United States by capacity; its 325 MW is <0.1% of the 923,876 MW we hold for the United States. Ranks and totals cover the grid connections in our data that report their capacity, not every one in existence.

WithinRankTotalShare
California138th of 487131,091 MW0.25%
United States709th of 4,021923,876 MW<0.1%
All grid connections in our data1,014th of 7,9281,372,494 MW<0.1%

Timeline

Dated facts about this grid connection from its sources, oldest first.

  1. Due to connect

Grid operator and place

More from California Independent System Operator Corporation

Other grid connections in California

All 487 grid connections in California, United States

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