Tyra II, the largest natural gas field in Denmark

Tyra II stands as Denmark’s largest and most advanced natural gas field, playing a crucial role in securing domestic gas supply and strengthening Europe’s energy network. Located in the Danish North Sea, Tyra II represents one of the region’s most significant offshore redevelopment projects in recent years.

The project is managed by the Danish Underground Consortium (DUC), a partnership between TotalEnergies (operator and largest stakeholder with 43.2%), BlueNord (36.8%), and Nordsøfonden (20%). BlueNord, formerly the Norwegian Energy Company (Noreco), is an independent international petroleum company headquartered in Norway. TotalEnergies is also involved in the development of Norway’s Northern Lights Phase 2 project with a NOK 7.5 billion ($716 million) investment.

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Norway’s Northern Lights 2 CCS project factsheet
Phase: Northern Lights phase 2

Location: Norway

Cost: NOK 7.5 billion ($716 million)

Developers: Equinor, Shell PLC, and TotalEnergies

TSP: Equinor

Northern Lights 2 EPC contractors: Subsea7, Aker Solutions

CCS facility capacity: 5 Million Metric Tons per Annum (MMtpa)

Project commissioning date: 2028

Equinor’s Subsea7, Aker EPC contracts and the $700 million investment
Subsea7’s EPC contract will involve construction work of a 5 km CO2 pipeline for the Northern Lights Phase 2 carbon capture and storage (CCS) facility. This is in line with the initial-made investment that had at its core the expansion of the CCS facility to hold over 5 MMtpa from 1.5 MMtpa of CO2.Smart construction materials

Subsea 7 joins Equinor as Northern Lights 2 TSP soon after $700m investment
Subsea7 will also oversee the pre-commissioning of the Northern Lights 2 once it has achieved its EPC targets
Also as part of the Subsea7’s EPC contract will be the installation of satellite structures, umbilicals and tie-in. This will run parallel to the $716 million investment ambition by Equinor, Shell, and TotalEnergies.

As part of its vision for the expansion of the Northern Lights Phase 2 project, the consortium saw it fit to expedite the project by leveraging the facility’s existing onshore and offshore infrastructures. New construction will feature in the installation of the storage tanks, pumps, and wells. Subsea7 will also oversee the pre-commissioning of the Northern Lights 2 once it has achieved its EPC targets.Smart construction materials

Additionally, of the recent announcement by Subsea7, project management and engineering services for the project will be underway at its Norway office immediately. The stipulated timeline for the pipeline construction will see fabrication done first at the company’s spoolbase in Vigra, Norway. Thereafter, the offshore operations will start in 2026 through to 2027. This aligns with the three-member consortium’s phase 2 operational due date of 2028.

Aker Solutions EPC contract will involve onshore construction activities. This also includes the different locations where this will be done. Fornebu and Stord in Norway and Mumbai in India will be Aker’s areas of focus. Aker’s construction timeframe for the Northern Lights 2 project as stipulated in the contract will also be from 2025 to 2028.

Also read: Latest on Ørsted’s carbon capture and storage facility at the Ørsted Kalundborg CO2 Hub in Denmark

Northern Lights 2 project FID, investments
The recently signed Northern Lights 2 project Financial Investment Decision (FID) also came about after the consortium reached a milestone decision. This is the cross-border carbon transport and storage agreement with Swedish-based energy provider, Stockholm Exergi AB. The capacity for transport and storage of the CO2 stands at 900,000 metric tons. This will start once the Northern Lights 2 carbon capture and storage facility becomes operational in 2028.Smart construction materials

The Northern Lights 2 also secured EUR 131 million ($141 millon) from the European Union through its Connecting Europe Facility for Energy program (CEF Energy). This amount accounts for a portion of the $716 million invested in the project.

It is impressive to see oil and gas companies at the forefront of efforts to reduce global carbon emissions.

Also read: Norsk Hydro to build new aluminium wire casthouse facility in Norway for NOK 1.7 billion

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Key Redevelopment Features

The Tyra Redevelopment Project involved extensive upgrades to modernize and future-proof Denmark’s key offshore gas hub. The old Tyra platforms were fully decommissioned and recycled, while six platform legs were extended by 13 meters to account for seabed subsidence and ensure long-term safe operations.

New topsides were installed on these extended legs, accompanied by a completely new state-of-the-art process module and a modern accommodation platform to house offshore crews safely and comfortably.

Improved Efficiency and Lower Emissions

Tyra II is designed to deliver natural gas with up to 30% lower CO₂ emissions compared to its previous configuration. Process equipment upgrades and improved energy efficiency measures make it one of the most modern offshore natural gas facilities in the world.

Gas produced at Tyra II is transported through export pipelines at Nybro and Den Helder, supplying Denmark and European markets with a reliable domestic energy source.

A Boost for Denmark’s Energy Independence

The redevelopment of Tyra II secures a stable supply of natural gas for Danish households and industries. It also supports Denmark’s position as a key energy player in Northern Europe, contributing to regional energy security and the gradual transition towards cleaner energy production.

By modernizing existing infrastructure rather than building entirely new facilities, the project demonstrates how innovative redevelopment can extend the life of vital energy assets while cutting emissions and waste.

Project Partners

Operator: TotalEnergies (43.2% stake)
Consortium Member: BlueNord (36.8% stake)
Consortium Member: Nordsøfonden (20% stake)

Tyra II is a prime example of how strategic investment, advanced engineering, and strong collaboration can transform aging energy infrastructure into future-ready assets that meet today’s sustainability goals.