Datacenter Sites in Napa, California
Napa has 72 scored datacenter candidate sites averaging 43.5/100 DC Readiness, with a catalogued aggregate of 1,200 MW. FEMA rates local natural-hazard risk as "Relatively High".
At a glance
Napa, California has 72 scored datacenter candidate sites averaging 43.5/100 DC Readiness, roughly in line with the California average of 45.4. It ranks 33rd of 58 California counties by number of sites and 42nd by average score. The top-scoring site is OAKMONT SOUTH at 55.0/100.
Site-selection context for Napa
How does Napa compare with other counties in California?
By number of scored sites, Napa ranks 33rd of the 58 California counties with a county page, holding 0.8% of the state's 8,490 sites. Its average DC Readiness of 43.5/100 ranks 42nd in the state and is about 18% below the national average of 53.0. Nationally it has the 500th-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 Napa?
Federal Excess sites are the most common (51, 71% of the county's inventory), followed by substation-adjacent (8) and greenfield (7). 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 Napa?
Industrial electricity averages 22.93¢/kWh and commercial 29.96¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (48). WRI water stress is high. 2 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 $61,295 an acre.
By site type
Top datacenter sites in Napa
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| OAKMONT SOUTH | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 55.0 |
| OAKMONT NORTH | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 54.9 |
| SONOMA | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 50.9 |
| NAPA | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 50.8 |
| OZ Napa | Greenfield | — | — | 7.6 yrs | 50.2 |
| PUEBLO | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 49.9 |
| SILVERADO | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 49.4 |
| EC Near Coca Cola American Canyon | Greenfield | — | — | 7.6 yrs | 48.3 |
| MONTICELLO | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 48.0 |
| HOMESTAKE | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 46.9 |
| EC Near Coca Cola American Canyon | Greenfield | — | — | 7.6 yrs | 46.9 |
| EC Near Coca Cola American Canyon | Greenfield | — | — | 7.6 yrs | 46.5 |
| EC Near Coca Cola American Canyon | Greenfield | — | — | 7.6 yrs | 45.7 |
| EC Near Coca Cola American Canyon | Greenfield | — | — | 7.6 yrs | 45.2 |
| Napa Flood Control District-Napa Flood Control Nr20 | Industrial | — | — | 7.6 yrs | 44.9 |
| Napa Flood Control District-Napa Flood Control Nr19 | Industrial | — | — | 7.6 yrs | 44.9 |
| Mine Site | Former Mine | — | — | 7.6 yrs | 44.8 |
| Napa Flood Control District-Napa Flood Control Nr27 | Industrial | — | — | 7.6 yrs | 44.1 |
| Napa Flood Control District-Napa Flood Control Nr18 | Industrial | — | — | 7.6 yrs | 43.4 |
| Solano Project | Federal Excess | — | — | 7.6 yrs | 42.7 |
| Solano Project | Federal Excess | — | — | 7.6 yrs | 42.6 |
| Solano Project | Federal Excess | — | — | 7.6 yrs | 42.6 |
| Solano Project | Federal Excess | — | — | 7.6 yrs | 42.6 |
| Solano Project | Federal Excess | — | — | 7.6 yrs | 42.6 |
| Solano Project | Federal Excess | — | — | 7.6 yrs | 42.6 |
Every scored site in Napa
All 72 sites, best first.
- OAKMONT SOUTH · 55.0
- OAKMONT NORTH · 54.9
- SONOMA · 50.9
- NAPA · 50.8
- OZ Napa · 50.2
- PUEBLO · 49.9
- SILVERADO · 49.4
- EC Near Coca Cola American Canyon · a79ed7e0 · 48.3
- MONTICELLO · 48.0
- EC Near Coca Cola American Canyon · d9fdca70 · 46.9
- HOMESTAKE · 46.9
- EC Near Coca Cola American Canyon · 03745aeb · 46.5
- EC Near Coca Cola American Canyon · 22f528af · 45.7
- EC Near Coca Cola American Canyon · 0101fac3 · 45.2
- Napa Flood Control District-Napa Flood Control Nr19 · 44.9
- Napa Flood Control District-Napa Flood Control Nr20 · 44.9
- Mine Site · e112ff6f · 44.8
- Napa Flood Control District-Napa Flood Control Nr27 · 44.1
- Napa Flood Control District-Napa Flood Control Nr18 · 43.4
- Solano Project · 251bbffd · 42.7
- Solano Project · f77c2b0b · 42.6
- Solano Project · 4ecadb41 · 42.6
- Solano Project · f7e74cbf · 42.6
- Solano Project · b7ae3918 · 42.6
- Solano Project · d5b508be · 42.6
- Solano Project · 5a993827 · 42.5
- Solano Project · f8daa6f8 · 42.5
- Solano Project · d4f74f2d · 42.5
- Solano Project · 87b0aac7 · 42.4
- Solano Project · 5a4eceea · 42.4
- Solano Project · b31bd761 · 42.4
- Solano Project · 69374294 · 42.2
- Solano Project · 03edbfc1 · 42.1
- Solano Project · 85ec80d5 · 42.1
- EC Near Coca Cola American Canyon · fe8131c2 · 42.1
- Solano Project · 61eaa7c2 · 42.1
- Solano Project · 18f711c7 · 42.1
- Solano Project · fff6ba3a · 42.0
- Solano Project · b4900f50 · 42.0
- Solano Project · fbf8f9df · 42.0
- Solano Project · 73704d39 · 42.0
- Solano Project · eef08bfb · 42.0
- Solano Project · 3d0e1b83 · 42.0
- Solano Project · cdb7a598 · 42.0
- Solano Project · e9c73f21 · 41.9
- Solano Project · db434656 · 41.9
- Solano Project · b50f9b3b · 41.9
- Solano Project · 9d54b9bf · 41.9
- Solano Project · 5c91a8bb · 41.9
- Solano Project · 741ad560 · 41.9
- Solano Project · 4d2c26a7 · 41.9
- Solano Project · dd98fd24 · 41.8
- Solano Project · 835c2c59 · 41.8
- Solano Project · 3a33110d · 41.8
- Solano Project · 595720f7 · 41.8
- Solano Project · 13d96d44 · 41.7
- Solano Project · 4756c9d9 · 41.7
- Solano Project · 22cc1fa4 · 41.7
- Solano Project · 21ca8794 · 41.7
- Solano Project · 0d7c7b37 · 41.6
- Solano Project · 66743928 · 41.6
- Solano Project · 532e4169 · 41.5
- Solano Project · 1486acaa · 41.5
- Mine Site · 8f299819 · 41.5
- Solano Project · 5e1542e7 · 41.5
- Solano Project · d94c97e0 · 41.5
- Solano Project · a783ecdc · 41.5
- Solano Project · b4801c5d · 41.3
- Solano Project · 9be1dd2e · 41.1
- Solano Project · 1f82dd7e · 41.1
- Solano Project · 07ac6f8c · 41.0
- Solano Project · 05d07f7e · 40.9
Napa datacenter FAQ
How many datacenter sites are in Napa?
72 scored datacenter candidate sites, averaging 43.5/100 DC Readiness. That is the 33rd-most of 58 California counties with five or more sites.
What is the highest-scoring datacenter site in Napa?
OAKMONT SOUTH scores 55.0/100 DC Readiness, the highest of the 72 scored sites in Napa (a substation-adjacent site).
Does Napa offer datacenter tax incentives?
No datacenter-specific tax incentive is on record for Napa in the GridCensus county dataset.
What is the natural-hazard risk in Napa?
FEMA's National Risk Index rates Napa as "Relatively High" (score 48).
What are industrial electricity rates in Napa?
Average industrial electricity is 22.93¢/kWh and commercial is 29.96¢/kWh in Napa.
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 Napa, California”, https://gridcensus.com/datacenter-sites/california/napa (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 Napa, 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.