Ohio hub logs highest grid constraint score in today's DCPI update as platform tracks 234 markets globally
## Dublin, OH constraint score climbs to 72.5
Dublin, OH scored 72.5 on the DC Hub Data Center Power Index (DCPI) constraint scale today — the highest constraint reading across all 234 tracked markets — triggering an AVOID flag for new capacity planning. The market's excess power score sits at just 22.4, signaling tight headroom for expansion.
The DCPI constraint metric synthesizes interconnection queue backlog, substation utilization, utility upgrade timelines, and regulatory friction. Scores above 70 indicate multi-year lead times and elevated project risk.
## Context: PJM corridor tightening
Dublin sits in the PJM interconnection, which has seen sustained capacity pressure as hyperscale AI workloads concentrate in the Eastern U.S. The market contrasts sharply with today's top BUILD signals: Cheyenne, WY (excess 69.5, constraint 22.5) and Montréal, QC (excess 65.2, constraint 25.6) — both offering >50-point advantages in available headroom.
London, UK (constraint 71.8) and Amsterdam, NL (constraint 70.0) also logged AVOID flags today, reflecting similar grid saturation across legacy colocation hubs.
## Why it matters
Constraint scores above 70 correlate with 24-36 month interconnection timelines and require early utility engagement. Developers targeting 2027-2028 energization should prioritize markets with constraint scores below 40 and excess scores above 55.
**Source:** DC Hub Data Center Power Index (https://dchub.cloud/dcpi). Updated daily.
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