interXdata

Contra Costa County, California — Interconnection Projects

The interXdata warehouse tracks 2,131 interconnection projects in Contra Costa, California, representing 15,643 MW of requested capacity.

2,131Total projects
15Active
2,075Operational
41Withdrawn
15,643 MWRequested capacity

Technology mix

TechnologyProjectsRequested capacity
Gas529,529 MW
Battery455,292 MW
Solar2,020322 MW
Wind6271 MW
Solar+Battery2200 MW
Other630 MW

Projects

ProjectQueue IDTechnologyCapacityStatusLocation
OAKLEY GENERATING STATION258Gas651.0 MWwithdrawnContra Costa, California
STEEL CITY ENERGY STORAGE1555Battery650.0 MWwithdrawnContra Costa, California
ANTIOCH GENERATING STATION276Gas650.0 MWwithdrawnContra Costa, California
CPV CALIFORNIA VII235Gas630.0 MWwithdrawnContra Costa, California
PITTSBURG POWER PLANT - CCU322Gas611.0 MWwithdrawnContra Costa, California
MARSH LANDING GENERATING STATION - COMBINED CYCLE UNITS305Gas611.0 MWwithdrawnContra Costa, California
GATEWAY GENERATING FACILITY (FKA CONTRA COSTA POWER PLANT PROJECT)2Gas590.0 MWoperationalContra Costa, California
BRIDGEVIEW ENERGY FACILITY48Gas590.0 MWwithdrawnContra Costa, California
EAST ALTAMONT ENERGY CENTER - OPTION 246Gas531.0 MWwithdrawnContra Costa, California
DELILAH ENERGY STORAGE1875Battery500.0 MWactiveContra Costa, California
COMMANDER ENERGY STORAGE1874Battery500.0 MWwithdrawnContra Costa, California
ALLEGHENY ENERGY STORAGE1872Battery325.0 MWactiveContra Costa, California
DIABLO ENERGY FACILITY1008Gas309.0 MWwithdrawnContra Costa, California
Delta Energy Center55333_STG1Gas306.0 MWoperationalContra Costa, California
HARMONY STORAGE 21892Battery300.0 MWactiveContra Costa, California
EPPS STORAGE1924Battery300.0 MWwithdrawnContra Costa, California
Los Medanos Energy Center55217_STG3Gas280.5 MWoperationalContra Costa, California
SHERMAN ENERGY STORAGE1915Battery250.0 MWactiveContra Costa, California
Crockett Cogen Project55084_GE1Gas247.0 MWoperationalContra Costa, California
STONEMAN1899Battery220.0 MWwithdrawnContra Costa, California
STEEL CITY BATTERY STORAGE1705Battery220.0 MWwithdrawnContra Costa, California
Delta Energy Center55333_CTG3Gas213.5 MWoperationalContra Costa, California
Gateway Generating Station56476_CGas213.3 MWoperationalContra Costa, California
Delta Energy Center55333_CTG2Gas212.0 MWoperationalContra Costa, California
Delta Energy Center55333_CTG1Gas212.0 MWoperationalContra Costa, California
Marsh Landing Generating Station57267_1Gas207.0 MWoperationalContra Costa, California
Marsh Landing Generating Station57267_3Gas207.0 MWoperationalContra Costa, California
Marsh Landing Generating Station57267_4Gas207.0 MWoperationalContra Costa, California
Marsh Landing Generating Station57267_2Gas207.0 MWoperationalContra Costa, California
Gateway Generating Station56476_AGas203.2 MWoperationalContra Costa, California
Gateway Generating Station56476_BGas203.2 MWoperationalContra Costa, California
Diablo Energy Storage62175_DIBLOBattery200.0 MWoperationalContra Costa, California
BLACK DIAMOND ENERGY STORAGE 21445Battery200.0 MWwithdrawnContra Costa, California
TOLEDO STORAGE1902Battery200.0 MWwithdrawnContra Costa, California
LANYARD ENERGY STORAGE1878Battery200.0 MWwithdrawnContra Costa, California
BLACK DIAMOND ENERGY STORAGE1111Battery200.0 MWoperationalContra Costa, California
Los Medanos Energy Center55217_CTG2Gas198.9 MWoperationalContra Costa, California
Los Medanos Energy Center55217_CTG1Gas198.9 MWoperationalContra Costa, California
BLACK DIAMOND ES21914Battery175.0 MWactiveContra Costa, California
HARMONY STORAGE 11891Battery160.0 MWwithdrawnContra Costa, California
WILBUR POWER CC63Gas158.0 MWwithdrawnContra Costa, California
RUBY ENERGY STORAGE1908Battery150.0 MWwithdrawnContra Costa, California
CONTRA COSTA GENERATING STATION EXPANSION507Gas131.0 MWwithdrawnContra Costa, California
BRIDGEHEAD ES1099Battery103.0 MWwithdrawnContra Costa, California
MARSH LANDING GENERATION STATION - SIMPLE CYCLE UNITS320Gas100.0 MWoperationalContra Costa, California
CARQUINEZ WIND177Wind100.0 MWwithdrawnContra Costa, California
DEL RANCHO1473Solar+Battery100.0 MWwithdrawnContra Costa, California
HALIFAX1890Solar+Battery100.0 MWwithdrawnContra Costa, California
AQUEDUCT ENERGY STORAGE1683Battery100.0 MWwithdrawnContra Costa, California
CA Queue Project 2017-G2 — Solar in Contra Costa, California2017-G2Solar100.0 MWwithdrawnContra Costa, California
WILBUR ENERGY STORAGE1368Battery91.3 MWwithdrawnContra Costa, California
MALLARD ENERGY STORAGE PROJECT1386Battery81.1 MWwithdrawnContra Costa, California
Vasco Winds57700_1Wind78.2 MWoperationalContra Costa, California
LOS MEDANOS ENERGY CENTER963Gas72.0 MWoperationalContra Costa, California
SAGE SOLAR FARM762Solar70.0 MWwithdrawnContra Costa, California
Richmond Cogen52109_GEN2Gas62.6 MWoperationalContra Costa, California
Richmond Cogen52109_GEN1Gas62.6 MWoperationalContra Costa, California
Riverview Energy Center55963_CTG1Gas47.0 MWoperationalContra Costa, California
Martinez Refining54912_GTG2Gas40.0 MWoperationalContra Costa, California
Martinez Refining54912_GTG1Gas40.0 MWoperationalContra Costa, California

Top developers

Developer (canonical)ProjectsCapacity
PowerLight Corporation2751 MW
SunPower2013 MW
Sun Light and Power1461 MW
NextEnergy1010 MW
Borrego Solar Systems, inc.900 MW
Next Energy820 MW
SolarCity760 MW
Diablo Solar Services, Inc.760 MW
REC Solar, Inc.721 MW
Sky Power Systems570 MW
Light Energy Systems560 MW
Solar City501 MW
Power Independence Electric480 MW
Akeena Solar430 MW
SPG Solar, Inc.330 MW

Explore related data

Source last checked2026-07-31
Data last materially changed2026-08-27
Page data generated2026-08-27

Provenance: ca-dgstats; California ISO — public interconnection queue; U.S. EIA — Form EIA-860M generator inventory (operating + planned); Lawrence Berkeley National Laboratory — Queued Up interconnection dataset; wapa-sn-oasis. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

Get an alert when a new project is proposed in Contra Costa County.

Start tracking with interXdata