HAVANA S
Substation-AdjacentMason, Illinois · PJM
HAVANA S is a substation-adjacent datacenter candidate site in Mason, Illinois, interconnecting through PJM. It screens at 57.2/100 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
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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 | 61.3 |
| EC Coal Mason County | Greenfield | — | — | 4.6 yrs | 57.8 |
| EC Coal Mason County | Greenfield | — | — | 4.6 yrs | 57.5 |
| MASON CITY WEST | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 56.8 |
| EC Near Havana | Greenfield | — | — | 4.6 yrs | 56.7 |
| EC FFE Mason County | Greenfield | — | — | 4.6 yrs | 56.7 |
| EC Coal Mason County | Greenfield | — | — | 4.6 yrs | 56.4 |
| EC Near Havana | Greenfield | — | — | 4.6 yrs | 56.4 |
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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