Datacenter Sites in Sierra County, California
Sierra County has 50 scored datacenter candidate sites averaging 44.2/100 DC Readiness, with a catalogued aggregate of 1,956 MW. FEMA rates local natural-hazard risk as "Relatively High".
At a glance
Sierra County, California has 50 scored datacenter candidate sites averaging 44.2/100 DC Readiness, roughly in line with the California average of 45.4. It ranks 38th of 58 California counties by number of sites and 32nd by average score. The top-scoring site is BORDERTOWN at 56.9/100.
Site-selection context for Sierra County
How does Sierra County compare with other counties in California?
By number of scored sites, Sierra County ranks 38th of the 58 California counties with a county page, holding 0.6% of the state's 8,490 sites. Its average DC Readiness of 44.2/100 ranks 32nd in the state and is about 17% below the national average of 53.0. Nationally it has the 757th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 1 score 55 or higher.
What types of datacenter sites are in Sierra County?
Federal Excess sites are the most common (16, 32% of the county's inventory), followed by substation-adjacent (16) and former mine (14). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.
What are power cost, hazard, water and fiber conditions in Sierra County?
Industrial electricity averages 22.93¢/kWh and commercial 29.16¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (48). WRI water stress is high. 1 fiber providers report service in the county. The climate runs 1,000 cooling degree days a year with a mean temperature of 59°F. Land is valued around $2,427 an acre.
By site type
Top datacenter sites in Sierra County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| BORDERTOWN | Substation-Adjacent | 345 kV | 600 MW | 7.6 yrs | 56.9 |
| FORT SAGE | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 54.8 |
| N. TRUCKEE | Substation-Adjacent | 120 kV | 100 MW | 7.6 yrs | 49.0 |
| STAMPEDE DAM | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 47.3 |
| HOBART | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 47.2 |
| Portola | Brownfield | 60 kV | 6 MW | 7.6 yrs | 47.1 |
| UNKNOWN308926 | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 47.0 |
| SIERRA BROOKS | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 46.8 |
| CHILCOOT | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 46.8 |
| DONNER | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 46.7 |
| CEMETERY | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 46.7 |
| UNKNOWN303924 | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 46.4 |
| SIERRAVILLE | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 46.3 |
| BECKWORTH | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 45.5 |
| SUMMIT | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 45.5 |
| PORTOLA | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 45.5 |
| MARBLE | Substation-Adjacent | 69 kV | 50 MW | 7.6 yrs | 45.2 |
| San Luis Unit, CVP | Federal Excess | — | — | 7.6 yrs | 44.8 |
| Washoe Project | Federal Excess | — | — | 7.6 yrs | 44.7 |
| Washoe Project | Federal Excess | — | — | 7.6 yrs | 44.6 |
| Washoe Project | Federal Excess | — | — | 7.6 yrs | 43.8 |
| Washoe Project | Federal Excess | — | — | 7.6 yrs | 43.8 |
| OZ Sierra | Greenfield | — | — | 7.6 yrs | 43.6 |
| Washoe Project | Federal Excess | — | — | 7.6 yrs | 43.6 |
| Washoe Project | Federal Excess | — | — | 7.6 yrs | 43.6 |
Every scored site in Sierra County
All 50 sites, best first.
- BORDERTOWN · 56.9
- FORT SAGE · 54.8
- N. TRUCKEE · 49.0
- STAMPEDE DAM · 47.3
- HOBART · 47.2
- Portola · 47.1
- Substation-Adjacent site · 740ac2a7 · 47.0
- SIERRA BROOKS · 46.8
- CHILCOOT · 46.8
- DONNER · 46.7
- CEMETERY · 46.7
- Substation-Adjacent site · 8a0a91e0 · 46.4
- SIERRAVILLE · 46.3
- BECKWORTH · 45.5
- SUMMIT · 45.5
- PORTOLA · 45.5
- MARBLE · 45.2
- San Luis Unit, CVP · 1eb032a7 · 44.8
- Washoe Project · bd5fb2f6 · 44.7
- Washoe Project · 988a161e · 44.6
- Washoe Project · 3fc011fd · 43.8
- Washoe Project · 3f146f86 · 43.8
- OZ Sierra · 43.6
- Washoe Project · 60284a48 · 43.6
- Washoe Project · b88b2504 · 43.6
- Washoe Project · 9b47b94f · 43.5
- Washoe Project · f2d4c87d · 43.5
- Washoe Project · 57bd83ed · 43.4
- Washoe Project · 3f1ea546 · 43.4
- Washoe Project · b721ba52 · 43.3
- Washoe Project · 946ff4de · 43.3
- Washoe Project · 2abcc8a5 · 43.0
- Washoe Project · 0b8bf368 · 42.7
- PLUMAS NATIONAL FOREST · 9ac73b18 · 42.5
- Mine Site · 5fa00285 · 41.5
- Mine Site · 4938407e · 41.5
- Mine Site · 6e4048d3 · 41.5
- Mine Site · 70010438 · 41.5
- Mine Site · 38527bff · 41.3
- Mine Site · b7e27787 · 41.3
- Mine Site · 7efa14ff · 41.2
- Mine Site · c55f1baa · 41.2
- Smailes Property · 41.2
- Mine Site · df8ecb3c · 41.2
- Mine Site · e9d17b90 · 41.2
- Hayes Property · 41.1
- Mine Site · dde87b87 · 41.0
- Mine Site · 9c1787ce · 41.0
- Mine Site · 4e7e73aa · 40.9
- Mine Site · d8baea2a · 40.9
Sierra County datacenter FAQ
How many datacenter sites are in Sierra County?
50 scored datacenter candidate sites, averaging 44.2/100 DC Readiness. That is the 38th-most of 58 California counties with five or more sites.
What is the highest-scoring datacenter site in Sierra County?
BORDERTOWN scores 56.9/100 DC Readiness, the highest of the 50 scored sites in Sierra County (a substation-adjacent site).
Does Sierra County offer datacenter tax incentives?
No datacenter-specific tax incentive is on record for Sierra County in the GridCensus county dataset.
What is the natural-hazard risk in Sierra County?
FEMA's National Risk Index rates Sierra County as "Relatively High" (score 48).
What are industrial electricity rates in Sierra County?
Average industrial electricity is 22.93¢/kWh and commercial is 29.16¢/kWh in Sierra County.
More in California
- All datacenter sites in California· 8,490 sites
- Operating datacenters in California
- Electric substations in California
- Los Angeles County· 691 sites · avg 49.8
- Fresno County· 628 sites · avg 43.8
- San Diego· 550 sites · avg 47.7
- Riverside County· 376 sites · avg 45.5
- Yolo County· 363 sites · avg 46.7
- Alameda· 313 sites · avg 49.4
- Federal Excess sites in California
- Substation-Adjacent sites in California
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 November 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Sierra County, California”, https://gridcensus.com/datacenter-sites/california/sierra-county (data as of November 13, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Sierra County, California is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.