Grid connection · Sonoma County, California, United States

Mayacamas Geothermal grid connection (CAISO 1859)

Mayacamas Geothermal grid connection (CAISO 1859) is a planned grid connection in Sonoma County, California, United States, with 53 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 sourceMAYACAMAS GEOTHERMAL grid connection (CAISO 1859)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
LocationSonoma County (connects at Geysers #3-Cloverdale 115 kV Line)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
StatusPlanned (active, cluster C14)CAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
Capacity53 MWCAISO queue report · CAISO Privacy and Terms of Use · checked 24 Oct 2026
TechnologyGeothermal (registered as Steam Turbine Geothermal)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 date19 Oct 2030 (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

Mayacamas Geothermal grid connection (CAISO 1859) is the 421st-largest of 487 grid connections in California and the 3,227th-largest of 4,021 in the United States by capacity; its 53 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
California421st of 487131,091 MW<0.1%
United States3,227th of 4,021923,876 MW<0.1%
All grid connections in our data3,977th 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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