Carbon Capture Aimed at Data Centre Power
Carbon Capture Aimed at Data Centre Power
North Sea Project Connects Carbon Capture With AI Power Demand
Orcadian Energy is exploring an unconventional way to meet the growing electricity needs of artificial intelligence: generating power offshore, capturing carbon dioxide and using the electricity to operate a data centre located alongside the power station.
On July 16, 2026, the UK-based oil and gas company announced that it had entered the assessment phase for a proposed development of the Earlham and Orwell gas fields in the southern North Sea. Its preferred concept combines offshore gas-fired power generation with integrated carbon capture and underground CO₂ reinjection.
The proposed first phase would support an offshore data centre with approximately 200 megawatts (MW) of IT load. Orcadian has established Earlham Gigagrid Ltd to develop the concept and explore potential investment and commercial participation.
The project remains at an early development stage. It requires regulatory approvals, technical assessment, financing and suitable commercial partners before construction and operation can proceed. Nevertheless, it highlights a growing effort to connect carbon capture technology with the rising demand for dependable power from AI infrastructure.
How the Proposed Offshore Power System Would Work
The concept brings together three major components: natural gas production, electricity generation with carbon capture, and a data centre.
1. Produce gas from the Earlham and Orwell fields
The project would use gas from the Earlham discovery and the previously depleted Orwell field. Orcadian estimates that Earlham contains 114 billion cubic feet (bcf) of methane resources, while redevelopment of Orwell could provide an additional 31 bcf.
Earlham gas presents a particular technical challenge because of its high carbon dioxide content. Orcadian reports that the gas contains approximately 49% CO₂, making conventional pipeline export unattractive.
Instead of treating this gas solely as a conventional export commodity, the company proposes using it to generate electricity at the offshore field itself.
2. Generate electricity offshore
A dedicated offshore power station would convert the gas into electricity for the proposed data centre.
Orcadian estimates that the first phase could provide approximately 200 MW of electrical power for the data centre's IT load. Locating generation next to the computing facility would reduce dependence on a conventional grid connection and avoid the need to transport all the gas to shore before generating electricity.
The company also intends to investigate how gas from the two fields could be blended to achieve an average methane content of around 50%. Selecting an appropriate turbine and integrating it with the carbon capture system will be an important part of the technical assessment.
3. Capture and reinject carbon dioxide
Rather than releasing most of the captured CO₂ into the atmosphere, the proposed system would compress the gas and reinject it into the Earlham reservoir.
The reservoir would serve as the geological destination for the captured carbon dioxide. Orcadian also expects reinjection to provide pressure support and potentially improve gas recovery, making carbon management part of the wider field development strategy.
The effectiveness of this approach will depend on the final engineering design, capture performance, injection capacity, reservoir behaviour and the approvals required for carbon storage.
Why Put a Data Centre Offshore?
Data centres need continuous electricity to power servers, networking equipment and cooling systems. As AI workloads expand, developers are seeking new ways to secure large, reliable supplies of electricity without waiting for lengthy grid connection processes.
Orcadian believes an offshore location could offer several advantages.
Dedicated power supply: A data centre located beside a dedicated power station could be developed around its own electricity infrastructure, potentially reducing reliance on constrained onshore transmission networks.
Cooling opportunities: Seawater and the surrounding marine environment could offer opportunities for heat rejection. However, a practical cooling system would still need to meet the facility's technical, environmental and reliability requirements.
Compact industrial design: The North Sea already has a long history of offshore engineering, including platforms designed to operate in challenging weather and marine conditions. Orcadian believes that expertise could help make a large offshore computing facility technically feasible.
Integrated infrastructure: Combining gas production, power generation, carbon capture and computing at one location could reduce the need for separate gas export and power transmission infrastructure.
These potential advantages must be balanced against offshore construction costs, maintenance requirements, equipment access, data connectivity, weather exposure and the complexity of operating a large computing facility at sea.
Carbon Capture Could Change the Economics of Offshore Gas
The high CO₂ content of Earlham gas is central to the proposed development strategy. It makes conventional gas export less attractive, but it also creates an opportunity to design a power project around carbon capture from the beginning.
In a conventional gas-fired power station without carbon capture, combustion produces CO₂ that is largely released into the atmosphere. A capture system separates a substantial portion of that carbon dioxide from the power station's exhaust stream before it can be emitted.
Under Orcadian's proposed concept, the captured CO₂ would be reinjected into the Earlham reservoir. This would require suitable compression and injection equipment, monitoring systems and regulatory authorization.
The company argues that the integrated approach could support low-carbon electricity while monetising gas resources that might otherwise be difficult to develop through conventional export routes.
However, carbon capture does not make gas-fired electricity emissions-free. The project's climate performance will depend on capture rates, energy consumed by the capture process, methane leakage, construction emissions and the long-term integrity of the storage reservoir.
Orcadian's emissions claims should therefore be treated as projections associated with a proposed development, rather than verified results from an operating facility.
The Link Between AI Growth and Carbon Capture
The project reflects a wider challenge in the energy transition: data centre electricity demand is growing rapidly, while developers face pressure to provide dependable power with lower emissions.
In March 2026, Boston Consulting Group identified gas-fired power plants equipped with carbon capture as one option for meeting the United States' growing demand for reliable electricity. Its analysis highlighted the potential role of carbon capture in supplying data centres while reducing emissions from gas-fired generation.
Google has also supported this pathway. In October 2025, the company announced an agreement to purchase most of the electricity from the proposed Broadwing Energy gas-fired power plant in Illinois, which is designed to capture and permanently store approximately 90% of its CO₂ emissions.
These examples illustrate why carbon capture is attracting attention from the data centre sector. Gas-fired generation can provide dispatchable electricity, while carbon capture may reduce its operational emissions compared with an equivalent plant without capture.
The Orcadian proposal differs because it would place the power station and data centre offshore and integrate them with gas fields and a potential CO₂ storage reservoir. It is a proposed development concept, not an established commercial model.
A Proposed 200 MW First Phase With Larger Ambitions
Orcadian's initial concept centres on a data centre with approximately 200 MW of IT load. The company has also suggested that additional offshore power stations and data centre halls could eventually create a larger system with more than one gigawatt of dispatchable low-carbon power.
Such expansion would require substantial investment and further technical, regulatory and commercial development. No assumption should be made that the larger capacity will be delivered.
The company expects major cloud providers, hyperscalers or specialist AI infrastructure operators to be among the potential participants in a future project. However, a final data centre developer, financing structure and construction programme would need to be established.
The next key steps include completing the concept assessment, preparing a Concept Select Report, engaging with the North Sea Transition Authority and securing the approvals and commercial agreements required to advance the development.
Key Challenges Before the Project Can Proceed
Although the concept combines several technologies, integrating them offshore presents significant engineering and commercial challenges.
Technical integration: Turbines, carbon capture equipment, gas processing and data centre power systems must work together reliably.
CO₂ storage approval: The proposed reinjection system will require the relevant storage permissions and evidence that the reservoir can safely contain the captured carbon dioxide.
Project financing: Offshore infrastructure and data centres require substantial capital investment, making participation from experienced developers and investors important.
Data connectivity: High-capacity, resilient communications links are essential for connecting an offshore data centre with customers and digital networks onshore.
Environmental performance: A credible assessment must account for the full emissions profile, including methane leakage, energy consumption and the performance of the carbon storage system.
Regulatory coordination: Offshore power generation, gas development, carbon storage and data centre operations may involve several regulatory authorities and separate approvals.
The project will need to demonstrate that its integrated design offers sufficient technical reliability and commercial value to justify these complexities.
What Happens Next?
Orcadian's Earlham and Orwell proposal illustrates one possible response to the intersection of AI power demand and industrial carbon management. Instead of exporting high-CO₂ gas for conventional use, the company wants to evaluate generating electricity at the field, capturing the carbon dioxide and supplying a co-located offshore data centre.
The proposed 200 MW first phase is ambitious, but the project remains under assessment and is subject to approvals, investment and further engineering work.
If developed successfully, it could provide a new example of how offshore energy infrastructure might be adapted to support digital computing while managing carbon emissions. For now, the critical milestone is whether the concept can progress from an initial development proposal to a technically approved and commercially viable project.
Sources
Orcadian Energy — Official announcement, July 16, 2026: Earlham and Orwell development concept: gas-to-wire with carbon capture to power an offshore data centre
Boston Consulting Group — March 30, 2026: Solving the US Data Center Power Crunch
Google — October 23, 2025: Our first carbon capture and storage project
Global CCS Institute — March 24, 2026: CCS-Enabled Clean Firm Power for AI Data Centers
Aluminium Nitrate
Found this useful?
