MISO market tops AVOID list as DCPI flags mounting infrastructure pressure; Cheyenne, WY leads BUILD recommendations at 69.5 excess power
## Mount Pleasant Flagged for Extreme Grid Stress
Mount Pleasant, WI recorded a constraint score of **80.0** in the May 17 DC Hub Power Index (DCPI) update, the highest avoidance rating across 286 tracked US markets. The MISO-region site's excess power score of 55.0 could not offset mounting transmission and substation bottlenecks, earning it the top slot on the platform's AVOID list for new data-center deployments.
## BUILD Markets Show Strong Fundamentals
Meanwhile, **Cheyenne, WY** led the BUILD rankings with an excess power score of **69.5** and a low constraint rating of 22.5, signaling robust grid headroom in the WECC ISO. Rural SPP (Kansas) and Midlothian, TX followed at 67.2 and 65.6 excess scores respectively, underscoring the Southwest and Plains corridors as top destinations for hyperscale and AI infrastructure.
Northern Virginia (PJM) and Phoenix (WECC) also appeared on the AVOID list, with constraint scores of 64.2 and 61.5, reflecting well-documented saturation in two of the nation's most active colocation hubs.
## What Developers Should Know
DC Hub's dual-metric DCPI framework weights both power availability and transmission feasibility. Markets above 60.0 constraint typically face multi-year interconnection queues or require costly substation upgrades. Mount Pleasant's 80.0 score suggests developers should pivot to lower-risk geographies unless existing grid contracts are in place.
**Source:** DC Hub Data Center Power Index (https://dchub.cloud/dcpi). Updated daily. Coverage spans 7 ISOs, 286 markets, and 126,085 substations.
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