W.S. Libby Mill
IndustrialAndroscoggin County, Maine · ISO-NE
At a glance
W.S. Libby Mill is an industrial datacenter candidate site in Androscoggin County, Maine, scoring 52.4/100 DC Readiness — 37th of 90 scored sites in the county. It sits in the ISO-NE grid region and the CENTRAL MAINE POWER CO service territory, where interconnection has averaged 4.3 years from request to operation.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
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 W.S. Libby Mill compare with other sites in Androscoggin County?
W.S. Libby Mill ranks 37th of 90 scored candidate sites in Androscoggin County. Its 52.4/100 is roughly in line with the county average of 53.3. It is roughly in line with the Maine average of 53.5 and roughly in line with the national average of 53.2.
Against the Maine average, its strongest sub-score is natural hazard (85 vs 84) and its weakest is power availability (30 vs 33). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is W.S. Libby Mill to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is CENTRA PWM1 - Portland, Maine (340 Cumberland) at 30.4 miles. 8 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Oxford Networks, 20.3 miles away.
What are the flood, water and hazard risks at W.S. Libby Mill?
At the county level, FEMA's National Risk Index rates Androscoggin County "Relatively Low".
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 Androscoggin County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| LARRABEE ROAD | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 64.5 |
| HOTEL ROAD | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 58.6 |
| LEWISTON LOWER | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 58.4 |
| UNKNOWN136746 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 58.4 |
| CROWLEYS | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 58.3 |
| GULF ISLAND | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 58.2 |
| UNKNOWN133734 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 58.1 |
| TAP136745 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.8 |
W.S. Libby Mill: common questions
What is the DC Readiness score of W.S. Libby Mill?
W.S. Libby Mill scores 52.4/100 on the GridCensus DC Readiness scale, rated fair. It ranks 37th of 90 scored sites in Androscoggin County. The Androscoggin County average is 53.3 and the Maine average is 53.5.
Which electric utility serves W.S. Libby Mill?
CENTRAL MAINE POWER CO (investor owned) holds the retail service territory that contains the site; its holding company is IBERDROLA USA INC.
What grid region is W.S. Libby Mill in?
W.S. Libby Mill is in the ISO-NE region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is W.S. Libby Mill from an internet exchange?
The nearest internet exchange facility is CENTRA PWM1 - Portland, Maine (340 Cumberland), about 30.4 miles away; 8 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, “W.S. Libby Mill, Androscoggin County, ME”, https://gridcensus.com/datacenter-sites/maine/androscoggin-county/w-s-libby-mill-b8454a5d (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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