What dCarbonX does

dCarbonX is a privately held offshore underground energy storage developer founded in 2021 and headquartered in London, with an additional office in Dublin. It develops projects that convert depleted offshore gas fields and decommissioned reservoirs into underground storage infrastructure for natural gas, hydrogen, and CO2 sequestration, serving national and regional energy systems in the United Kingdom and Ireland. The company holds three exclusive UK licences — gas storage licences GS007 and GS008 plus production licence P2681 (awarded in the UK's 33rd Seaward Round) — covering the East Irish Sea, and operates three core projects: the Bains Project (gas storage, ~1.4 bcm capacity, projected to increase UK gas storage by ~50%), the Gateway Project (offshore salt cavern hydrogen storage, designed for 1.5–3.0 bcm / 15–30 TWh), and the Kestrel Project offshore Cork, Ireland (underground storage redevelopment of the Kinsale Head field, in joint venture with ESB and Bord Gáis Energy/Centrica). The company is also evaluating prioritised CCUS opportunities offshore the UK for future licensing.

The business model is B2B infrastructure development: dCarbonX originates and develops storage assets, monetising them via long-term storage capacity services to energy companies, utilities, and government-backed entities — pricing is not publicly disclosed and operates under managed-services contract structures. It pursues an enterprise field-sales go-to-market targeting regulatory bodies and large energy counterparties, with regulatory approvals and joint-venture partnerships serving as primary distribution channels. The company is majority-owned (52.98%) by Snam, a leading European gas infrastructure operator with 80 years of experience, ~40,000 km of pipeline, one-sixth of EU storage capacity, and decarbonisation targets of carbon-neutrality by 2040 and Net Zero by 2050. Headcount is small (1–10 per firmographics, with ~10 named leadership/directors), and the company remains pre-revenue at the project development stage.

Name

dCarbonX

Legal name

dCarbonX

Website

https://dcarbonx.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

dCarbonX is a London-based developer of offshore underground energy storage assets in the UK and Ireland, converting depleted gas fields into storage for natural gas, hydrogen, and CO2 sequestration. It serves national energy systems, utilities, and government entities, and is majority-owned by Snam.

Ownership category

akta.pro rank

Product category

Underground Energy Storage Infrastructure

NAICS

Natural Gas Extraction (211130)

SIC

Oil & Gas Field Services, Nec (1389), Crude Petroleum & Natural Gas (1311)

akta.pro primary industry

Underground Storage (Salt Caverns, Depleted Reservoirs) (EUALAEAE)

akta.pro secondary industries

Underground Hydrogen Storage in Salt Caverns (Solution Mining, Cushion Gas, Cycling) (EUAFAEAD), Geologic & Underground Energy Storage (CAES Caverns, Hydrogen Caverns, Reservoir-Based) (EUAFADAF), Underground Hydrogen Storage in Porous Reservoirs (Depleted Fields, Aquifers) (EUAFAEAE)

Keywords

• Offshore gas storage
• Hydrogen underground storage
• Carbon sequestration services
• Energy transition infrastructure
• Depleted reservoir conversion

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Energy Storage Capacity Services: Revenue generated through development and operation of underground energy storage assets that provide storage capacity to national energy systems. Payments would come from energy companies, utilities, and potentially government-backed entities requiring storage capacity for energy security and system resilience.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

dCarbonX develops offshore underground energy storage assets by converting depleted gas fields and developing salt caverns in the UK and Ireland. Its portfolio covers natural gas storage, hydrogen storage, and carbon sequestration projects that provide energy system resilience, security of supply, and renewable integration support for national energy systems.

Product overview

dCarbonX is a pioneering underground energy storage company that operates a portfolio of energy transition assets across the United Kingdom and Ireland. The company offers a unified platform of underground energy storage solutions comprising three core projects: the Bains Project (natural gas storage), the Gateway Project (hydrogen storage), and the Kestrel Project (natural gas storage in Ireland), complemented by Carbon Capture, Utilisation & Storage (CCUS) initiatives. dCarbonX develops offshore storage infrastructure that turns proven gas fields into critical low-carbon energy system assets, backed by majority shareholder Snam.

Differentiator

Problem solved

Functional benefit

Products and services

• Bains Project Gas storage project in the UK's East Irish Sea redeveloping the depleted Bains gas field with an estimated capacity of 1.4 billion cubic metres of natural gas, designed to increase UK gas storage capacity by approximately 50%. Targeted at national energy systems and utilities requiring storage capacity.
• Gateway Project Hydrogen storage project in the UK's East Irish Sea developing offshore salt caverns for safe storage and rapid withdrawal of large volumes of hydrogen, originally designed for 1.5 to 3.0 billion cubic metres (15-30 TWh). For utilities and energy companies seeking low-carbon storage solutions.
• Kestrel Project Energy storage project located approximately 40 kilometres offshore Cork, redeveloping decommissioned gas reservoirs in the Kinsale Head field area for national-scale underground energy storage. Developed jointly with ESB and Bord Gáis Energy (Centrica) to support Ireland's net zero targets.
• Carbon Capture, Utilisation and Storage (CCUS) Carbon sequestration initiatives evaluating prioritised offshore UK opportunities for future licensing, offering routes to UK decarbonisation and Net Zero. Targeted at government and industrial emitters needing offshore CO2 storage.

Quantifiable outcome

• Increases UK's gas storage capacity by approximately 50%
• +1 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered flagship.

• ESB (Electricity Supply Board)flagshipStrategic or Co-development PartnerESB is a joint venture partner in the Kestrel Project with dCarbonX and Bord Gáis Energy. The Kestrel Project focuses on redevelopment of decommissioned gas reservoirs in the offshore Kinsale Head field area, located approximately 40 kilometres offshore Cork, for national-scale energy storage.
• Bord Gáis Energy (Centrica)flagshipStrategic or Co-development PartnerBord Gáis Energy, a Centrica company, is a joint venture partner in the Kestrel Project with dCarbonX and ESB. The project is focused on the proposed redevelopment of the decommissioned gas reservoirs in the offshore Kinsale Head field area for national-scale energy storage, supporting Ireland's net zero targets by 2040.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Regional players

• Neptune Energy: Independent operator of offshore gas production and storage assets in the UK North Sea and Europe, with a stated focus on lower-carbon operations including CCS. Neptune is a regional peer to dCarbonX in offshore UK/European gas infrastructure.
• Harbour Energy: UK-listed independent operator focused on North Sea oil and gas production and on repurposing upstream infrastructure for the energy transition. Harbour is a regional player comparable to dCarbonX in offshore UK gas infrastructure and storage-adjacent operations.

Direct peers

• Storengy: Subsidiary of ENGIE and one of Europe's largest underground natural gas storage operators, with salt cavern and depleted-field assets across France, Germany, and the UK. Storengy is the closest direct competitor to dCarbonX in developing and operating underground energy storage, including active hydrogen storage initiatives.
• INEOS Energy: Operates gas storage at the Bacton terminal in the UK and has interests in offshore gas infrastructure including the Breitbrunn/EGR gas storage facility in Germany. INEOS is a directly comparable independent operator in UK/European underground gas storage.
• Uniper Energy Storage: Operates large-scale underground gas storage facilities in the UK (including the Holford facility) and across Europe, and is developing hydrogen storage capabilities. Uniper is a directly comparable UK and European underground storage operator.
• Centrica Storage: Operates the Rough gas storage facility, historically the UK's largest gas storage site. Centrica Storage is a direct competitor in the UK underground gas storage market and is part of the same Centrica group that partners with dCarbonX on the Kestrel Project in Ireland.

Broad incumbents

• RWE: Major European utility with operated underground gas storage assets in Germany and the UK and a stated strategy to repurpose cavern storage for hydrogen. RWE is a broad incumbent overlapping with dCarbonX on energy storage and energy transition infrastructure.
• EDF: French state-owned utility with underground gas storage assets and an active hydrogen strategy including salt-cavern storage development. EDF is a broad incumbent comparable to dCarbonX on storage and hydrogen transition themes.
• Snam: Italy-headquartered European gas infrastructure leader with 40,000+ km of pipeline and approximately one-sixth of EU storage capacity. Snam is dCarbonX's majority shareholder and a broad incumbent that competes in the same underground storage category across Europe.
• Equinor: Norwegian integrated energy major with significant North Sea offshore gas operations and active salt-cavern hydrogen storage projects (e.g., the Northern Lights partnership). Equinor is a broad incumbent with overlapping offshore gas and emerging hydrogen storage interests.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=EB1-Vocv3ho
• LinkedInlinkedin.com/company/dcarbonx-ltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about dCarbonX