The Integrated
Energy Platform.
From one geothermal resource, Catoxy is designed to deliver electricity, heat, cooling, hydrogen and storage — matched to the needs of the organisations that depend on energy most.
From resource to energy
Every Catoxy project starts from the same physical fact: a body of hot rock or fluid, typically between 90 and over 200°C, sitting within reach of a well. How that heat reaches the surface — through conventional production and injection wells or a sealed closed-loop circuit — is an engineering choice; what it becomes at the surface is a commercial one.
At the surface, that single heat stream can be split. High-grade heat can drive turbines for electricity; mid- and low-grade heat can feed district and industrial networks directly; and the same energy can run absorption cooling, electrolysis for hydrogen, or thermal and electrical storage. Because the resource runs continuously, each of these outputs is firm rather than weather-dependent.
Integrating those outputs around one resource is what changes the economics. A project matched to a customer’s actual mix of power, heat and cooling earns across several revenue streams from a single set of wells, so utilisation stays high and value compounds instead of leaking between separately owned generation, network and supply layers.
Five forms of energy from one resource
- 01
Reliable Power
Geothermal draws on heat that flows regardless of weather or time of day, so a well-designed plant runs at high capacity year-round rather than in intermittent bursts. That makes it dispatchable baseload — the firm, always-on generation grids, heavy industry and critical infrastructure need to displace fossil plants without importing volatility.
- 02
Heat & Cooling
Because the resource is thermal to begin with, heat can be used directly — piped to district networks or industrial processes — instead of being converted to electricity and back, avoiding the losses that penalise electric heating. The same infrastructure can drive absorption cooling, so one site serves winter heating and summer cooling from a single source.
- 03
Behind-the-Meter
Sited next to a large consumer, generation connects straight to the load rather than through the public grid, cutting transmission losses, network charges and exposure to congestion or curtailment. For the customer that converts an unpredictable grid bill into long-term, contractable cost certainty — and a supply that holds when the wider network does not.
- 04
Hydrogen & Storage
Continuous output can run electrolysis at high utilisation, and surplus heat or power can be stored thermally or electrically to shift supply toward peak demand. Catoxy treats hydrogen and storage as options added where they raise the value of a specific project — flexibility, resilience or customer economics — not as standalone bets pursued for their own sake.
- 05
Strategic Infrastructure
A closed, locally generated system can be engineered to island — to keep running disconnected from the public grid when supply chains, fuel deliveries or the wider network are disrupted. For governments and critical facilities that turns energy from an external dependency into a controllable asset, underwriting continuity through disruption that strands grid-tied sites.
Three geothermal configurations
- Doublet
Conventional wells
A production well brings hot geothermal fluid to the surface and an injection well returns it to the reservoir, sustaining pressure and keeping the fluid in a closed circuit. It is the most established and lowest-cost configuration wherever a permeable, productive reservoir exists — the reference case against which the closed-loop options are weighed.
- Pipe-in-pipe
Closed-loop · Coaxial
A sealed pipe-in-pipe well circulates a working fluid down the outer annulus and back up an insulated core, picking up heat by conduction through the well wall with no formation contact and no reservoir stimulation. That removes the groundwater and induced-seismicity questions that constrain some conventional sites and opens locations with strong heat but insufficient natural permeability.
- Multilateral
Closed-loop · U-loop
A U-shaped or multilateral closed loop drills longer sealed horizontal sections through hot dry rock, greatly increasing contact length — and therefore heat captured — while keeping the working fluid fully contained. It targets the large volumes of hot but impermeable rock that conventional geothermal cannot reach, extending viable geothermal beyond the shrinking set of natural reservoirs.
Built for the world’s most important energy users
- Power · Cooling
Data Centres & AI
AI and cloud sites need firm power and continuous cooling in the same place, and grid connections increasingly cannot be secured fast enough to match build-out. Co-locating geothermal generation behind the meter supplies both from one site, and low-grade heat can drive cooling directly — easing the two loads that most constrain new capacity.
- Power · Heat
Industry & Manufacturing
Many industrial processes need heat, not electricity, and pay heavily when they make it by burning gas exposed to volatile prices. Supplying process heat and power together from a geothermal source gives energy-intensive manufacturers a long-term, contractable cost base and insulation from the fuel- and carbon-cost swings that erode margins.
- Power · Heat · Cooling
Cities & Utilities
District networks are among the hardest parts of a city to decarbonise: they need heat at scale, in winter, without interruption. A geothermal plant can feed an existing heat network directly while also supplying power and cooling, letting a utility cut network emissions without trading away the supply security residents and regulators expect.
- Heat · Power
Agriculture & Food Security
Controlled-environment agriculture — greenhouses, aquaculture, processing and cold storage — lives or dies on the cost and reliability of heat and power. Dependable geothermal heat and electricity can make year-round, climate-independent production viable in places and seasons that would otherwise be uneconomic, strengthening local food security.
- Power · Heat
Mining & Remote Operations
Remote, energy-intensive sites often run on trucked or shipped fuel, where logistics dominate cost and any disruption halts operations. A local geothermal supply, where the resource is present, can replace that fuel chain with firm on-site power and heat — cutting both the cost and the operational risk of depending on distant grids and deliveries.
- Power · Heat · Cooling · Storage
Defence & Government
Mission-critical installations must keep operating precisely when grids and fuel supply chains are disrupted. A locally generated, islandable geothermal system built with storage removes that external dependency — a resilient, self-sufficient supply engineered for continuity and mission assurance rather than lowest unit cost.
Managing the risks
Geothermal’s central risk is subsurface: whether the resource is as hot, as productive and as durable as predicted before large capital is committed to drilling. Catoxy is built to confront that risk first — staging investment behind resource assessment and modelling, and favouring closed-loop configurations, where they fit, precisely because they reduce dependence on natural reservoir permeability.
Delivery and market risks are handled the same way: proven engineering and experienced execution partners for drilling and construction, and projects matched to identified long-term demand rather than built speculatively. SERIO carries this discipline across the portfolio, applying a consistent method to screen opportunities, quantify risk and compare concepts before capital is allocated.
Find the fit for your organisation.
For sector-specific enquiries — partnership, supply or investment — reach the team directly.