Wyoming market ranks top for available grid headroom across US tracked facilities; capacity planners must confirm time-to-power before land commitment.
## Highlights
Cheyenne, Wyoming scored 70/100 on the DC Hub Power Index excess-power metric this week, the highest reading across WECC and among the top three US markets for available grid headroom. The market's constraint index registers 22.5—moderate relative to national pressure points, but a material qualifier for build timelines.
## What It Means
Cheyenne's excess-power score places it at the top of the shortlist for hyperscale and colocation operators seeking markets with room to absorb new load without immediate grid upgrades. The 70/100 reading translates to strong available capacity relative to current and near-term demand signals. However, the constraint figure (22.5) signals that interconnection lead times and network reinforcement projects remain the binding variable. Capacity planners should cross-reference WECC queue depth and SPP regional interconnection timelines before committing land or early-phase capex.
## Second-Order Signal
Cheyenne's strength in excess power but moderate constraint rating—versus Rural SPP's 67/100 excess at 22.5 constraint—suggests that WECC's transmission grid has absorbed recent load growth more evenly than SPP corridors. This divergence favors markets already near urban load centers or transmission hubs, where new capacity can reach existing substations faster. For operators prioritizing time-to-power over absolute headroom, Cheyenne's utility interconnection roadmap becomes the critical decision gate.
## Methodology
The DC Hub Power Index measures excess available grid capacity (0–100 scale) and constraint severity (a factor combining queue depth, regional transmission congestion, and utility approval timelines). Both metrics update daily across 280+ US and global markets. Excess power reflects the ratio of available transmission headroom to regional demand growth forecasts; constraint reflects interconnection queue length and upgrade project timelines.
Source: DC Hub Data Center Power Index (https://dchub.cloud/dcpi/cheyenne). Updated daily.