Proposed Hercules Middle School
IndustrialContra Costa County, California · CAISO
At a glance
Proposed Hercules Middle School is an industrial datacenter candidate site in Contra Costa County, California, scoring 45.8/100 DC Readiness — 128th of 222 scored sites in the county. It sits in the CAISO grid region and the PACIFIC GAS & ELECTRIC CO. service territory, where interconnection has averaged 7.6 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Site location
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How does Proposed Hercules Middle School compare with other sites in Contra Costa County?
Proposed Hercules Middle School ranks 128th of 222 scored candidate sites in Contra Costa County. Its 45.8/100 is roughly in line with the county average of 47.3. It is roughly in line with the California average of 45.4 and about 14% below the national average of 53.2.
Against the California average, its strongest sub-score is fiber connectivity (78 vs 66) and its weakest is power availability (30 vs 36). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Proposed Hercules Middle School to power, fiber and other datacenters?
The nearest located transmission bottleneck is 30750_MOSSLD _230_30797_LASAGUIL_230_BR_1 _1 (CAISO), 14 miles away. For connectivity, the nearest internet exchange facility is Evocative Emeryville (EM1) at 11.7 miles. 6 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Open Computing Facility, 10.2 miles away.
What are the flood, water and hazard risks at Proposed Hercules Middle School?
At the county level, FEMA's National Risk Index rates Contra Costa County "Relatively High".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Contra Costa County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EMBARCADERO | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 59.8 |
| BAHIA | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 56.5 |
| SOBRANTE | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 56.5 |
| MORAGA | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 56.4 |
| TECHNICAL ECOLOGICAL S. R. RESEARCH CENTER | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 56.0 |
| ROSSMOOR | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 56.0 |
| ROSSMOOR TAP 2 | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 56.0 |
| TESORO | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 55.6 |
Proposed Hercules Middle School: common questions
What is the DC Readiness score of Proposed Hercules Middle School?
Proposed Hercules Middle School scores 45.8/100 on the GridCensus DC Readiness scale, rated fair. It ranks 128th of 222 scored sites in Contra Costa County. The Contra Costa County average is 47.3 and the California average is 45.4.
Which electric utility serves Proposed Hercules Middle School?
PACIFIC GAS & ELECTRIC CO. (investor owned) holds the retail service territory that contains the site; its holding company is PACIFIC GAS & ELECTRIC CORPORATION.
What grid region is Proposed Hercules Middle School in?
Proposed Hercules Middle School is in the CAISO region. Projects interconnecting there have averaged a 7.6-year wait from queue request to operation.
How far is Proposed Hercules Middle School from an internet exchange?
The nearest internet exchange facility is Evocative Emeryville (EM1), about 11.7 miles away; 6 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Proposed Hercules Middle School, Contra Costa County, CA”, https://gridcensus.com/datacenter-sites/california/contra-costa-county/proposed-hercules-middle-school-56f27998 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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