The vendor’s primary proof point is a museum installation in Valencia, Spain. The Midwest is identified as geologically favorable for this approach
Decision Focus
On July 23, 2026, DCL Geoenergía — a Spanish technology company within the ITECON Group — published a press release asserting that its Dynamic Closed Loop geothermal system can cool data centers without extracting groundwater or consuming water for heat rejection. The named target market is the U.S. Midwest. The operational signal for Global Heads of Data Center Energy is not the vendor announcement itself: it is that water availability is beginning to appear alongside power availability as a site-level constraint, and the cooling equipment market is already repositioning in response.
90-Second Brief
As the week closes, dCL Geoenergía markets a closed-loop geothermal exchanger that transfers heat to the geological subsurface rather than through evaporative processes. The company states the system pumps no groundwater to the surface and consumes no operational water. The vendor’s primary proof point is a museum installation in Valencia, Spain. The Midwest is identified as geologically favorable for this approach.
What Is Really Happening?
Water has always been a background variable in data center siting. It is becoming a foreground variable. Evaporative cooling systems — still common across large-scale campuses — consume water continuously through make-up supply, blowdown cycles, and chemical treatment loops. As AI-driven build-out accelerates load density and data center footprints expand into mid-tier markets, aggregate municipal water draw is generating permitting friction, community pushback, and early regulatory scrutiny in multiple U.S. states.
Closed-loop geothermal cooling addresses this differently than either open-loop geothermal (which extracts and returns groundwater) or evaporative alternatives. By circulating a working fluid through sealed underground exchangers and using the thermal mass of the subsurface as a heat sink, the system avoids consumptive water use entirely. The underlying physics are well-established in commercial and institutional HVAC. What the press release does not resolve is whether Midwest subsurface geology can support the continuous, high-density heat rejection a large data center demands — and at what installation cost relative to alternatives.
DCL’s claim that many Midwest and Upper Midwest areas offer favorable aquifer and subsurface conditions is directionally plausible given regional geology, but site-level variability is substantial. Favorable regional geology does not translate uniformly into deployable exchange capacity at a specific parcel. No independent thermal performance data at data center MW scales accompanies the company’s positioning.
Why It Matters for Global Heads of Data Center Energy
Water permitting is not yet at the top of the site selection matrix for most operators, but it is moving up the checklist. Several large data center markets — including parts of the Southwest, mid-Atlantic, and increasingly Midwest municipalities managing aquifer stress — have begun to factor water intensity into development approvals. A cooling technology that genuinely eliminates operational water consumption would reduce one category of permitting risk, improve community relations positioning, and remove evaporative tower operating costs including chemical treatment and blowdown management.
The ESG implication is also directional. Scope 3 water reporting is becoming part of sustainability disclosure frameworks that boards and investors are beginning to scrutinize alongside Scope 2 carbon. A credible water-free cooling pathway would simplify that reporting and reduce one regulatory exposure vector.
That said, no energy leader should evaluate this category on vendor-sourced claims alone. Before closed-loop geothermal enters serious procurement or site-design evaluation, the evidence standard should include: independent thermal performance testing at data center heat loads, site-specific geological studies for each candidate parcel, comparative total cost of ownership against air-cooled and direct liquid cooling alternatives, and at least one verifiable data center reference installation — not a museum HVAC project, which operates at fundamentally different load profiles and uptime requirements.
Forward View
If water permitting friction continues to grow in major build markets, three fronts are worth tracking. First, whether hyperscale operators begin requiring water consumption metrics alongside PUE in developer RFPs — which would accelerate the market’s shift toward non-consumptive cooling. Second, whether state-level water regulators in Midwest markets with active data center development begin formalizing water intensity thresholds as conditions of approval. Third, whether any geothermal cooling vendor — DCL or a competitor — publishes independently verified performance data from an operating data center deployment at meaningful scale, which would move the technology category from marketing to procurement evaluation.
The trajectory is gradual, but the direction is consistent: operators locking in cooling infrastructure designs today for campuses with ten-year horizons should stress-test those designs against scenarios where water availability or permitting imposes new constraints.
What Is Still Uncertain
The core technical claims in this announcement come from a single vendor press release and have not been independently verified. Specific uncertainties include: thermal exchange capacity at data center MW densities (not building HVAC loads), drilling and installation cost at scale, performance degradation over time as subsurface thermal mass is repeatedly cycled, and whether Midwest subsurface conditions translate from regional favorability to site-specific viability at individual parcels. No data center deployments are named. The Valencia museum reference establishes proof-of-concept for large buildings, but the continuous, mission-critical heat rejection profile of a data center is a materially different operating condition. Independent engineering review of performance claims has not been published.
One Question for Your Team
Has your site selection process added water availability and water permitting risk to the same evaluation rigor currently applied to power interconnection — and if not, at what trigger point does that analysis begin?
Sources
- Nbcrightnow — Geothermal cooling for midwest data centers; Zero water consumption with DCL dynamic closed loop technology (Link)
