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Biomethane Anaerobic Digestion Plant.

Client(s):

Melton Energy Tech Ltd & Thöni GmbH

Location:

East Yorkshire

Project Value:

NDA

Read Time:

2 minutes

Published:

04 December 2025

Power, control and full MEP systems for the UK’s first dry anaerobic digestion plant, serving process equipment, control rooms and site infrastructure.

Project Duration.

  • Early Contractor Interaction: February 2023
  • Practical works commencement: December 2024 to July 2025 (Seven Months)
  • Completion: August 2025

Project Gallery.

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Scope.

The MET plug Flow Digester is the UK’s first dry anaerobic digestion facility supplying biomethane directly to the national grid. Carbon Synergy was appointed by Thöni GmbH to provide full power and control services for the process plant.

This included the delivery of stainless-steel product pipework, hydraulic and pneumatic delivery and control systems, and process heating and insulation services.

Following further discussions with Melton Energy Tech and Thöni GmbH the scope expanded to cover site-wide electrical system such as fire alarm systems, access control, lighting, and power for control rooms and offices.

Full mechanical HVAC systems were also installed for these spaces. Carbon Synergy was additionally tasked with delivering final power connections from the LV transformer, incorporating automatic emergency switching.

Challenges.

  • Coordinating cross-discipline installations within tight plant commissioning timelines.
  • Managing scope creep from a process-only package to include site-wide electrical and mechanical infrastructure.
  • Delivering in a live environment where phased commissioning was essential.

Key Takeaways.

  • Flexibility and depth of in-house capabilities allowed for seamless project scope expansion.
  • Strong communication and coordination with both the client and equipment supplier ensured alignment from concept to commissioning.
  • Solidified Carbon Synergy’s position as a partner capable of delivering high-integrity solutions in complex, first-of-its-kind facilities.

Careers at Carbon Synergy.

We’re always looking for skilled engineers and technicians who take pride in quality workmanship. If you share our commitment to safety, precision and progress - we’d like to hear from you.

There are no vacancies available at the moment, but we’re always happy to hear from talented people. Send your CV and a short covering email to hr@carbonsynergy.co.uk and we’ll keep your details on file. If the right role opens up, you’ll be the first to know.

Trusted by Clients Across Sectors.

Our clients return because we deliver what we promise - safe, efficient, compliant systems backed by genuine service and professionalism.

Sector:

Sector Title

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Site Manager
Yorkare Homes Marton Gate Manor Care Home (Bridlington)

Sector:

Residential

"We were delighted to work with Carbon Synergy once again on our Bridlington Care Home project. As our only preferred electrical contractor, they have consistently demonstrated outstanding technical ability and a genuine understanding of our care home environments.


From the earliest design stage, the Carbon Synergy team worked closely with us to ensure our requirements were fully met. Their in-house design expertise proved invaluable -  particularly in creating external lighting solutions that complied with strict environmental restrictions while ensuring safety and accessibility for our residents and staff.


Despite a condensed build schedule and working alongside a new main contractor, Carbon Synergy delivered every aspect of the electrical package, power, lighting, fire safety systems, EV charging, data infrastructure, and access control - on time and to an exceptional standard.


Their proactive approach, attention to detail, and ability to adapt to challenges make them a trusted partner for Yorkare Homes. We look forward to continuing our strong working relationship on future projects."

Laurence Garton - Yorkare Homes Development Director
Yorkare Homes Marton Gate Manor Care Home (Bridlington)

Sector:

Industrial

"Carbon Synergy played a pivotal role in the successful delivery of the Melton Energy Tech Itd project, which featured the UK's first dry anaerobic gas-to-grid digestion facility.


This pioneering plant will provide green gas to over 10,000 homes and businesses in the local area every year. Throughout the project, Carbon Synergy demonstrated outstanding professionalism and technical expertise, delivering both electrical and mechanical installations to an exceptionally high standard.


Their team was efficient, dependable, and consistently offered excellent value for money. Melton Energy Tech are extremely pleased with the results and would not hesitate to recommend Carbon Synergy for future energy and infrastructure projects."

Paddy Cooney
AD Plant Manager at Melton Energy Tech Ltd

Sector:

Residential

"Haxby Hall was another important addition to the Yorkare Homes portfolio, and Carbon Synergy once again delivered the electrical package to the highest standard.


From concept to completion, their in-house design team worked hand-in-hand with us, ensuring every system, from fire alarms and lighting to Solar PV, EV charging, and access control, was tailored to meet both our operational needs and the latest care sector regulations.


Even with evolving design changes and site-specific constraints, Carbon Synergy maintained momentum, coordinated seamlessly with all stakeholders, and upheld the quality we've come to rely on. Their ability to integrate low-carbon technologies while ensuring compliance and practicality has been invaluable.


It's this consistency, attention to detail, and understanding of our sector that make Carbon Synergy a trusted partner across our developments."

Laurence Garton - Yorkare Homes Development Director
Yorkare Homes Haxby Hall Care Home (York)

Sector:

Industrial

"Working with Carbon Synergy Ltd was an excellent experience from start to finish. Their professionalism, clear communication, and technical expertise gave us confidence throughout the project. Timelines and costs were explained clearly, and the team delivered high-quality workmanship while keeping the site clean and safe. Any unexpected issues were handled promptly and effectively, which really set them apart.


The finished project not only improved the overall appearance but also brought long-term benefits such as energy efficiency and increased property value. We were particularly impressed with their responsiveness and attention to detail.


Overall, our experience was exceptional. We would definitely choose Carbon Synergy Ltd again and would not hesitate to recommend them to others."

Andrew Black
Construction Project Manager