Datacenter Sites in Petersburg County, Alaska
Petersburg County has 6 scored datacenter candidate sites averaging 47.6/100 DC Readiness, with a catalogued aggregate of 102 MW. FEMA rates local natural-hazard risk as "Relatively Low".
At a glance
Petersburg County, Alaska has 6 scored datacenter candidate sites averaging 47.6/100 DC Readiness, roughly in line with the Alaska average of 50.3. It ranks 25th of 29 Alaska counties by number of sites and 22nd by average score. The top-scoring site is Substation-Adjacent site · 57ed81e7 at 56.2/100.
Site-selection context for Petersburg County
How does Petersburg County compare with other counties in Alaska?
By number of scored sites, Petersburg County ranks 25th of the 29 Alaska counties with a county page, holding 0.7% of the state's 817 sites. Its average DC Readiness of 47.6/100 ranks 22nd in the state and is about 10% below the national average of 53.0. Nationally it has the 2781st-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 Petersburg County?
Former Mine sites are the most common (3, 50% of the county's inventory), followed by substation-adjacent (1) and brownfield (1). 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 Petersburg County?
FEMA's National Risk Index rates the county "Relatively Low" (18). WRI water stress is low. 1 fiber providers report service in the county. The climate runs 0 cooling degree days a year with a mean temperature of 27°F. Land is valued around $20,972 an acre.
By site type
Top datacenter sites in Petersburg County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN158506 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 56.2 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 50.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 50.2 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 47.2 |
| Petersburg | Brownfield | — | 2 MW | 4.3 yrs | 40.7 |
| EC FFE Petersburg Borough | Greenfield | — | — | 4.3 yrs | 40.7 |
Every scored site in Petersburg County
All 6 sites, best first.
- Substation-Adjacent site · 57ed81e7 · 56.2
- Mine Site · 074daab9 · 50.4
- Mine Site · 77bcd797 · 50.2
- Mine Site · 961a8f9e · 47.2
- Petersburg · 40.7
- EC FFE Petersburg Borough · 40.7
Petersburg County datacenter FAQ
How many datacenter sites are in Petersburg County?
6 scored datacenter candidate sites, averaging 47.6/100 DC Readiness. That is the 25th-most of 29 Alaska counties with five or more sites.
What is the highest-scoring datacenter site in Petersburg County?
Substation-Adjacent site · 57ed81e7 scores 56.2/100 DC Readiness, the highest of the 6 scored sites in Petersburg County (a substation-adjacent site).
Does Petersburg County offer datacenter tax incentives?
No datacenter-specific tax incentive is on record for Petersburg County in the GridCensus county dataset.
What is the natural-hazard risk in Petersburg County?
FEMA's National Risk Index rates Petersburg County as "Relatively Low" (score 18).
More in Alaska
- All datacenter sites in Alaska· 817 sites
- Operating datacenters in Alaska
- Electric substations in Alaska
- Anchorage County· 117 sites · avg 56.8
- Fairbanks North Star County· 105 sites · avg 54.4
- Yukon-Koyukuk County· 92 sites · avg 46.8
- Matanuska-Susitna County· 53 sites · avg 51.3
- Kenai Peninsula County· 47 sites · avg 50.0
- Nome County· 46 sites · avg 46.6
- Former Mine sites in Alaska
- Substation-Adjacent sites in Alaska
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 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Petersburg County, Alaska”, https://gridcensus.com/datacenter-sites/alaska/petersburg-county (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Petersburg County, Alaska 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.