The advanced geothermal sector is attracting serious capital and producing real results. Two approaches have emerged as leaders, and both carry fundamental limitations that DryRock's design overcomes.
The advanced geothermal sector is attracting serious capital and producing real results. Two approaches have emerged as leaders, and both carry fundamental limitations that DryRock's design overcomes.
More recent approaches attempt to solve this through fracking the rock (EGS) or running kilometers of pipe through it (closed-loop conduction). Both carry significant limitations in cost, output, or permitting complexity.
More recent approaches attempt to solve this through fracking the rock (EGS) or running kilometers of pipe through it (closed-loop conduction). Both carry significant limitations in cost, output, or permitting complexity.
Innovate with Purpose
How it works
Uses hydraulic fracturing to crack open dry hot rock, then circulates water through the artificial fractures between multiple horizontal wells. The fluid contacts the rock directly.
Requires hydraulic fracturing raising induced seismicity risk and complex regulatory permitting in many jurisdictions
Open-loop fluid contact with native rock causes mineral contamination and long-term reservoir degradation
Geographic permitting constraints in seismically sensitive regions
High water consumption and fluid loss through fracture networks
Drills a complex network of multilateral horizontal wells forming an underground radiator. Fluid circulates through sealed pipes, absorbing heat slowly by conduction through pipe walls and rock.
Fundamentally limited by heat conduction rates through steel and rock, lower power output per installation than direct-extraction approaches
Requires 90+ km of total drilled well length per installation — extremely high capital cost and complexity
First commercial project delivered ~0.5 MW against an 8.2 MW Phase 1 target output per loop remains a demonstrated challenge
Better suited for district heating than high-output electricity due to conduction-only heat transfer physics
DryRock's sealed system never fractures the rock. No induced seismicity. No mineral contamination. No fluid loss. Permittable where EGS cannot operate.
DryRock extracts heat through direct high-pressure fluid contact across the full borehole depth, not slow conduction through pipe walls. Higher output from a single vertical well, without 90+ km of lateral drilling.
CORE EXTRACTION AND POWER GENERATION TECHNOLOGY
No dependence on underground water reservoirs.Designed to access geothermal energy without requiring naturally occurring aquifers, potentially expanding deployment opportunities beyond traditional geothermal regions.
No hydraulic fracturing required. Avoids the complexity, costs, and environmental concerns associated with fracturing rock formations to create geothermal reservoirs.
Closed-loop thermal extraction.The working fluid remains isolated from the surrounding geology, reducing scaling, contamination, mineral deposition, and reservoir management challenges.
Designed to minimize induced seismic activity.By avoiding rock stimulation and fracture creation, the system aims to reduce risks associated with induced seismic events.
Smaller surface footprint. A simplified well architecture may reduce land use, infrastructure requirements, and drilling complexity compared with multi-well geothermal systems.
Higher power density per installation. Designed to deliver utility-scale output from a single deployment, potentially improving project economics and reducing infrastructure duplication.
Broader deployment potential. Not limited to conventional hydrothermal reservoirs, creating opportunities in regions previously considered unsuitable for geothermal development.
Continuous carbon-free energy.Provides reliable baseload power without direct operational carbon emissions, supporting long-term decarbonization goals..