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Engineering Solutions

High-Performance Gas & CO₂ Infrastructure for European Energy Networks

Engineering-driven gas and CO₂ infrastructure for regulated European energy networks.

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regaco delivers integrated engineering solutions for transmission and distribution system operators, biogas developers and industrial partners across Europe.

Our core expertise lies in gas compression, grid integration and CO₂-based engineering systems — supporting both existing and new CH₄ / natural gas infrastructure with technically robust and performance-driven solutions.

Our solutions

Gas Compression & Grid Integration

Engineering and integration of compression systems for TSO and DSO networks, including reverse compression, booster stations, grid injection systems and recompression of stranded gas. Designed for reliable operation within live gas infrastructure.

Explore Gas Compression

Biogas Upgrading & CO₂ Liquefaction

Official partner of Kanadevia Inova Biomethan GmbH for advanced membrane and amine upgrading systems as well as integrated CO₂ liquefaction plants. Full project support from development to commissioning.

Learn More About Upgrading

CO₂ Engineering & Transfer Systems

Specialised engineering solutions where CO₂ is used as a process medium. Including inerting of biogas reactor tanks, CCS terminal loading and off-loading systems, and engineered cryogenic CO₂ transfer installations.

Explore CO₂ Engineering
A structured and practical approach to delivering technically sound infrastructure projects.

Our Engineering Process

1. Consultation

We assess technical requirements, operational constraints and regulatory conditions in close dialogue with stakeholders.

2. Concept Development

Engineering studies and system design tailored to integration into existing gas networks or industrial environments.

3. Detailed Engineering

Technical design, specification, safety analysis and compliance documentation.

4. Manufacturing & Integration

Controlled production and system integration with full quality assurance.

5. Commissioning & Support

Installation supervision, commissioning and long-term technical support.

Core Competencies

Reverse Compression & Pressure Management Systems

High-performance compression systems enabling controlled gas reintegration between distribution and transmission networks.

Reverse compression and pressure management are no longer optional technologies — they are structural requirements in modern biomethane-integrated gas grids.

Regaco designs and delivers engineered compression solutions for regulated gas infrastructure, combining reverse compression and pressure management into fully integrated systems.

Applications include:

  • DSO-to-TSO gas reintegration
  • Bidirectional gas flow control
  • Booster compression for pressure uplift
  • Pressure stabilisation across grid levels
  • Recompression of stranded gas volumes

With increasing biomethane injection into distribution networks, pressure differentials prevent natural reverse flow. Our engineered compression systems resolve this imbalance and ensure stable integration into high-pressure transmission infrastructure.

All systems are engineered for:

  • Continuous-duty operation
  • High availability and redundancy
  • Near-zero methane emissions
  • Long-term lifecycle performance
  • Optimised Total Cost of Ownership (TCO)

Reverse compression is no longer optional — it is a structural requirement in modern European gas networks.

Biomethane Grid Injection Units

Engineered grid injection systems for safe and compliant integration of biomethane into DSO and TSO networks.

Regaco develops complete grid injection units enabling upgraded biogas (biomethane) to be injected directly into regulated gas infrastructure.

We deliver turnkey systems including:

  • Metering and fiscal measurement
  • Gas quality control and monitoring
  • Odorisation systems
  • Pressure regulation and safety systems
  • Compression where required
  • Integration into existing grid control systems

Our grid injection solutions are designed to comply with national and European gas grid codes and are adapted to both:

  • Distribution network injection (DSO level)
  • Direct transmission injection (TSO level)

By combining injection technology with compression expertise, we ensure seamless integration of renewable methane into existing gas networks.

Biogas Upgrading & CO₂ Liquefaction Systems

Advanced upgrading and CO₂ recovery solutions in partnership with Kanadevia Inova Biomethan GmbH.

As official partner and distributor, Regaco supplies membrane and amine upgrading systems as well as integrated CO₂ liquefaction solutions.

Scope includes:

  • Biomethane upgrading plants
  • Integrated CO₂ liquefaction systems
  • Process engineering and integration
  • Feasibility and technical advisory
  • Full project support from development to commissioning

These systems enable high methane recovery, optimised CO₂ utilisation and improved overall plant economics.

Unique CO₂ Inerting Concept

Proprietary CO₂-based inerting solution for safe commissioning of biogas reactor tanks and process systems.

Regaco has developed a unique engineered concept for controlled inerting of newly constructed biogas reactor tanks and associated process volumes during commissioning and start-up.

Traditional inerting methods can involve operational complexity, safety risks and inefficient gas handling. Our CO₂-based inerting concept is designed to provide:

  • Controlled oxygen displacement
  • Reduced explosion risk during commissioning
  • Minimized methane losses
  • Improved operational safety
  • Faster and more controlled transition to operation

The system is engineered specifically for:

  • Newly built biogas reactor tanks
  • Process vessels and storage volumes
  • Infrastructure requiring controlled atmosphere management

By integrating compression expertise with CO₂ handling engineering, we deliver a safe, technically robust and environmentally optimised inerting process.

This is a proprietary Regaco concept developed for operators who prioritise safety, control and lifecycle performance.

CCS CO₂ Loading & Off-Loading Systems

Specialised engineering where CO₂ is used as a process medium or infrastructure component.

Regaco designs engineered systems for:

  • CO₂ loading and off-loading terminals
  • CCS infrastructure interfaces
  • Cryogenic CO₂ transfer installations
  • Industrial CO₂ handling systems

We combine process understanding with practical infrastructure engineering — ensuring safe and compliant CO₂ transfer across industrial and energy applications.

Planning a compression or CO₂ infrastructure project?

Our engineering team supports complex gas and CO₂ systems across Europe.

Contact Our Engineering Team