close up of engineering working on reducing carbon emissions on PC


2H helps clients accelerate their path to net zero energy creation by applying proven system design and combining it with new technology to reduce, prevent and remove carbon emissions.

Net zero and the reduction of carbon is one of the greatest challenges that the world faces today. While the energy industry is moving fast from fossil fuel towards renewable sources and carbon-free production, making a significant impact on reducing emissions requires a multi-faceted approach and a combination of creative system design and innovative technologies.

As a leader in advanced systems engineering for the marine energy sector, 2H is playing its part to help clients on their journey to net zero. We are driving three main approaches:

1. Reducing carbon emissions by improving the efficiency of existing conventional energy production & operations.

2. Preventing future carbon emissions by enabling and optimising clean sources of energy.

3. Removing carbon emissions by creating innovative solutions for capture and storage.

Leveraging our unrivalled knowledge of marine engineering and riser, conductor and platform systems, our goal is to unlock technologies to help accelerate marine energy decarbonisation.

Our independent, holistic approach means we can identify the challenges and assess a wide range of technology that can deliver the maximum CO2 benefit, whilst being economically feasible.

Applying our domain knowledge and advanced systems engineering expertise, we help find solutions that are both efficient and effective, using greener designs and more sustainable methodologies & materials.

Our capabilities apply to all project phases from site potential and permitting, surveys, concept feasibility, FEED and detailed system design, to procurement, installation, and operations monitoring and integrity.

Our global team of engineers offers expertise in a range of disciplines:

Key Technologies and Services

Water Cooling Solutions

  • Sea water intake risers (SWIR) and sea water cooling system (SWCS): design, installation analysis, material specifications
  • Sea water air conditioning systems (SWAC): intake pipeline design, installation analysis, integrity management system, 3rd party verification, procurement engineering
  • Resilient island concepts (RIC): intake pipeline design, installation analysis, integrity management system, third-party verification, procurement engineering

And offshore wind turbine and vessel

Renewable Energy Production

We specialise in advanced engineering for foundations, moorings, floating systems and power cables, and focus on design, installation analysis, integrity management, third-party verification, and procurement engineering for the following systems:

  • Fixed and floating wind
  • Wave energy converter (WEC)
  • Tidal and current energy converter (TCEC)
  • Ocean thermal energy converter (OTEC)

Hydrogen Production and Storage & Transportation (GHPST)

  • Green energy production: floating and fixed wind, WEC and OTEC, offshore electrical substation
  • H2 support production design: offshore supporting platform, dedrying platform,
  • H2 offshore subsea storage
  • H2 flowline transportation: reboost platform, risers, pipelines, shore approach and landfall analysis

Carbon capture utilization and storage (CCUS)

  • Pre-assessment: CO2 source identification, site evaluation, assessment and remediation, environmental permitting
  • Transportation: flue stack to well injection, risers and flow lines, recompression platform
  • Injection: well injection, injection platform, risers, conductor pipes, site conversion
  • Storage: injection monitoring, structural assessment, site decommissioning, platform well abandonment & conversion operations

CCUS Ilustration

Photo credit: Global CCS Institute

Project Experience

Sea Water Cooling

  • Deep Sea Water Intake Riser, Brazil – Detail design, material specification and installation analysis
  • Sea Water Intake Riser, Brazil – Hydrodynamic analysis, material specification and installation analysis
  • Sea Water Intake Riser, Timor Leste – Hydrodynamic analysis, material specification and installation analysis
  • Deep Sea Water Intake Riser, Guyana – Detail design, material evaluation and installation analysis
  • SWAC feasibility for district cooling, France

Green Hydrogen

  • Autonomous wind energy generation, seakeeping and mooring analysis, France
  • Floating wind for H2 pilot, Poland – Market survey and concept ranking
  • 2H R&D project – Green hydrogen market analysis
  • 2H R&D project – MFP platform for 2H reboost and dedrying H2
  • 2H Smart Offshore Green Hydrogen production, storage and distribution JIP

Carbon Capture

  • Carbon capture well and reservoir potential survey, California
  • CO2 sequestration riser, UK – thermal convection/upwelling, geometry and mechanical setup specification, upwelling parameters, hydrodynamic analysis
  • CO2 well injection, UK – conductor pipe corrosion analysis
  • 2H CCUS JIP – Pilot analysis for wet and/dry pilot system