Hydrogen · Carbon · Source-to-Sink · Integrated Digital Twin
An integrated digital twin for
CO₂ Storage and Hydrogen: Source to Sink
iHyCSS helps energy teams plan, test and manage hydrogen and CO₂ projects from sources through pipelines and wells, into subsurface storage (depleted oil and gas reservoirs and aquifers) inside a single physics engine; so behaviour at the interfaces between domains stays consistent instead of being lost across separate tools.
We are currently speaking with E&P operators, CCS operators, hydrogen storage teams, gas networks, offshore infrastructure owners, engineering partners, regulators and investors.
01 / The Problem
Coupling separate tools across software boundaries loses fidelity where it matters most
Integrated reservoir-to-surface workflows do exist today, but they are typically assembled by coupling several specialist simulators across vendor software boundaries, exchanging data in batches. The coupled behaviour between domains, where many incidents actually begin, can fall between the tools. For H₂, CO₂ and blends the gaps are wider, and every added tool adds licences, specialists and turnaround time.
Data exchanged, not truly coupled
Vendors keep their data models closed, so the coupled behaviour between domains, where incidents start, falls between the tools.
Complexities across H₂, CO₂, NG & blends
Twins built for oil, gas and water can struggle on pure hydrogen or CO₂ service or H₂ blends — gaps that surface late, in commissioning.
Duplicated licences & specialists
Separate simulators for pipeline, well, reservoir and supply; each carry their own licences and specialist teams, cost stacks on every project.
Slower scenarios and delayed decisions
Huge time taken to run various scenarios, evaluations and decisions by different teams at each project stage.
02 / The Solution
One physics-based engine, Source to Sink.
iHyCSS represents the full hydrogen–carbon chain: source, transport, storage and end-use, in one asset-Physics based, AI-augmented configurable engine, not four separate builds.
04 / Why iHyCSS
Four choices that make iHyCSS different.
Design decisions, not marketing framing — the reasons iHyCSS is neither another siloed simulator nor an opaque AI wrapper. iHyCSS is being designed to reduce the gaps between separate tools and give teams a more connected view of the system. Rather than claim every market at once, we are sequencing by where fundable demand exists today.
CCS, UHS, GDN
Fit-for-purpose modular solutions for CO₂ storage (CCS), our primary near-term focus, cyclic hydrogen storage (UHS) in depleted oil & gas reservoirs and aquifers, and Gas Transmission & Distribution projects.
Physics + AI, human-in-the-loop
Physics-based simulation with AI inside the loop, and expert sign-off on outputs with an audit trail, not a black box.
Four domains, one engine
Pipeline, well, and reservoir coupled in a single asset-configurable engine, so incidents that start in the couplings are caught.
Co-located H₂ & CO₂ storage
A reservoir-engineering concept for storing hydrogen alongside permanent CO₂ storage sits at the core, not a rebranded flow simulator.
05 / Who It's For
Built for the teams running the energy transition underground.
iHyCSS is being developed for teams working across hydrogen, CO₂ transport and storage, offshore infrastructure, gas networks and future energy supply.
Storage operators: Onshore / Offshore
Depleted oil & gas fields and aquifers repurposed for H₂ and CO₂.
CCS developers & storage hubs
North Sea and emerging gigatonne-scale CO₂ projects. Support planning, monitoring and assurance across carbon transport and storage projects.
E&P operators
Repurposing producing assets for underground storage: assess how existing offshore assets could support future hydrogen or CO₂ use cases.
Pipeline Transmission & Distribution Networks
TSOs & networks balancing supply to the grid. Explore hydrogen blending, linepack & future network operation — pipeline reuse or new for CO₂ & H₂.
Utilities & energy retailers
Delivering blended gas for residential heating. Understand how stored or blended gas could support future heating and supply demand.
Hydrogen producers & majors
Integrated value chains. Connect production, storage and supply planning across the wider value chain.
We are engaging with major players operating across various industrial stakeholders (following) to better understand challenges and opportunities to test our iHyCSS-DT System. Your valuable insights will shape our journey.
06 / Capabilities
What iHyCSS is being built to do.
Capabilities below describe the target design under active development. Maturity varies by module. iHyCSS is being developed to support early planning, scenario testing and decision-making across hydrogen and CO₂ infrastructure through pipelines and wells, into underground storage and/or onward to supply/industrial applications.
Connect the full chain
Bring sources, pipelines, wells, storage sites, blending and supply into one connected view.
Dual-fluid physics
Hydrogen, natural gas and CO₂: phase behaviour, equations of state, impurities and HCNG blends — not one gas at a time. Plan treating each project as a separate modelling problem.
Compare operating scenarios
Pipeline deliverability, shutdowns, restarts and future demand cases. Test different injection rates, withdrawal cycles, working vs cushion gas, & deliverability forecasting over the full cycle.
Live digital twin
Real-time data assimilation, monitoring historical data and now-casting keep the model mirroring the real asset, continuously.
Integrity & safety
See how repeated injection & withdrawal could affect pressure, deliverability, composition and long-term storage behaviour. Caprock / fault containment, tracked across the system.
Blending for home heating
Grid-injection control, Wobbe Index and calorific management: so what leaves the store meets spec at the radiator.
07 / FAQ
Questions, answered
Conventional workflows link a reservoir simulator to well and flow-assurance tools across a software boundary, exchanging data in batches. iHyCSS solves the whole chain inside one engine, no interface error; pressure, temperature and composition stay consistent from source to supply, reducing interface error in the coupled behaviour between domains. Capable integrated tools exist; our specific, testable claim is higher fidelity at those interfaces, which we validate rather than assert.
Hydrogen, NG and CO₂ alone (H₂ + CO₂ together in CCS-enabled Hydrogen Bank Technology) in depleted fields and aquifers, across the full injection cycle (and withdrawal cycle in cyclic hydrogen storage), including impurities and HCNG blends.
Hydrogen, natural gas and CO₂, with CO₂ storage as the first focus, in depleted fields and aquifers across the full injection cycle and, for underground hydrogen storage, the withdrawal cycle, including impurities and HCNG blends.
It's a patent-informed reservoir-engineering concept for storing hydrogen alongside permanent CO₂ storage. It is an active research direction and IP position, not a commercially proven feature. We present it as a long-term differentiator under development, and we're candid about the open technical questions (distinct flow regimes, mixing/containment, microbial effects).
Integrated reservoir-to-surface and CO₂ or H₂-aware workflows do exist. Where they typically couple domains across software interfaces, iHyCSS is designed to couple them in a single solver. We position the platform as complementary and specific, and we are happy to show the comparison in detail.
Yes. Seasonal and daily cycling, working versus cushion gas, and deliverability over time are first-class — not approximations bolted on afterwards.
It ingests standard subsurface and operational data and can run alongside or replace point tools. Live feeds drive the digital twin so the model tracks the real asset. It complements rather than requires replacing what already works for you.
Both are supported. On-premises deployment keeps sensitive subsurface and commercial data inside your own environment.
Against analytical benchmarks, field history and published reference cases. Validation detail is in the technical brief.
08 / Get in touch
Request a technical conversation
If your team is involved in hydrogen storage, CO₂ transport and storage, gas networks, offshore infrastructure or energy system planning, we'd like to hear from you. Share a few details and we'll follow up to arrange a short discussion.