Google deal confirms controlled-source heat is moving from pilot to hyperscale anchor load
## Highlights
Fervo's new Utah geothermal facility came online at **396 MW**—the single largest site-level addition tracked by DC Hub in the past 24 hours and roughly half the total new capacity logged yesterday. Google has already contracted the full output, marking the first hyperscale anchor tenant for a geothermal project at this scale.
The facility sits in WECC territory, where **Cheyenne ranks fourth nationally** at 72.5 excess power and a 28.5% constraint score. Utah shares the same ISO footprint and benefits from WECC's characteristically low transmission congestion. For developers evaluating geothermal as a hedge against interconnection delay, the WECC corridor now offers both the grid headroom and the regulatory clarity to support multiphase builds.
## What it means
Controlled-source heat—geothermal, next-gen nuclear—has historically struggled to reach the 100+ MW threshold that hyperscalers require for anchor commitments. Fervo's 396 MW closes that gap. The implication: if a developer can prove reservoir deliverability at this scale, the capex risk shifts from "will anyone sign?" to "can we replicate the model in other low-constraint ISOs?" MISO and SPP both show sub-50% constraint scores in multiple markets; those grids are now the logical expansion candidates for the next tranche of geothermal capacity.
Source: DC Hub Data Center Power Index (https://dchub.cloud/dcpi). Updated daily.
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