MASON CITY WEST
Substation-AdjacentMason, Illinois · PJM
MASON CITY WEST is a substation-adjacent datacenter candidate site in Mason, Illinois, interconnecting through PJM. It screens at 58.3/100 DC Readiness with a catalogued 100 MW of candidate capacity and a 3.8 yrs average interconnection-queue wait.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
New-DC state tax exemptions suspended for 2 years (from Jul 2026).
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
Site location
Get alerts
Track MASON CITY WEST
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
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 Mason, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| HAVANA | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 61.8 |
| EC Coal Mason County | Greenfield | — | — | 4.6 yrs | 59.1 |
| EC Coal Mason County | Greenfield | — | — | 4.6 yrs | 58.8 |
| HAVANA S | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 58.7 |
| EC FFE Mason County | Greenfield | — | — | 4.6 yrs | 58.1 |
| EC Near Havana | Greenfield | — | — | 4.6 yrs | 58.0 |
| EC Coal Mason County | Greenfield | — | — | 4.6 yrs | 57.7 |
| EC Near Havana | Greenfield | — | — | 4.6 yrs | 57.7 |
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.
Go deeper than the public screen
Every site and score for MASON CITY WEST, Mason 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.