CCGT – Combined Cycle Gas Turbines

sener-energy-enbw-cogeneration

CCGT – Combined Cycle Gas Turbines

Efficient, flexible generation for a decarbonizing system

Delivering high-efficiency combined cycle plants ready for the hydrogen transition

Sener designs and delivers combined cycle solutions that provide high-efficiency, low-emission power and heat, while preparing assets for the transition to renewable gases. Our expertise covers open and combined cycle configurations, multi- or single-shaft layouts, multiple fuels, and various cooling systems, always targeting best-in-class performance and reliability.

We build today for tomorrow’s fuel mix

Our CCGT designs are conceived for fuel flexibility, CHP integration and future green hydrogen use. We apply proven methods—optimal shaft selection, advanced heat-recovery steam cycle design, and cooling choices (tower or air condenser)—to minimize heat rate and emissions while maximizing availability. With lifecycle service packages, we preserve performance as fuel blends evolve and operating regimes become more dynamic.

Why choose us

For decades, Sener has engineered complex thermal assets and hybrid plants, applying a technology-agnostic approach to deliver efficiency and lower CO₂. In Germany, together with GE Vernova and Bonatti, we are replacing two coal power plants with hydrogen-ready CCGT stations totaling 1.4 GW at Heilbronn and Altbach/Deizisau for EnBW—projects that include construction and long-term servicing. They will operate initially on natural gas and progressively adapt to burn 100% hydrogen from the 2030s, supporting EnBW’s goal of climate neutrality by 2035. This combination of engineering capability and delivery track record positions Sener as a trusted partner for utilities and industry.

How we work

We follow a structured methodology across four stages. In monitoring, we assess load, heat demand (for CHP), fuel logistics, grid interconnection and environmental constraints. During optimization, we simulate plant cycles, define shaft configuration, select gas turbines, and evaluate hydrogen-readiness (materials, combustion, and safety). Transformation executes EPC with rigorous QA/QC, SCADA integration and compliance testing. Finally, management sustains performance via predictive maintenance, degradation tracking and phased upgrades that enable increasing hydrogen shares without compromising safety or output.

We ensure performance through simulation and phased upgrades

Sener combines advanced modeling with materials and structural know-how to size critical systems correctly and plan upgrades over time. This approach reduces lifecycle cost, stabilizes efficiency under transient conditions, and accelerates the path from natural gas to renewable gases—keeping assets compliant and competitive in evolving markets.

Shaping the future of power with advanced CCGT solutions

Sener brings broad energy infrastructure experience in Spain, the Netherlands, Belgium and Morocco, integrating gas and power systems, large-scale terminals and hybrid plants that inform our CCGT delivery and interconnection capabilities.

Services that span design, EPC, and lifecycle support

We execute combined cycle power plants and CHP projects end-to-end: feasibility and conceptual design, detailed engineering, procurement, construction, commissioning, and long-term services.

Services that span design, EPC, and lifecycle support

We execute combined cycle power plants and CHP projects end-to-end: feasibility and conceptual design, detailed engineering, procurement, construction, commissioning, and long-term services.

Planning policy advice
Advising on planning policies to support sustainable development and compliance.
Energy efficiency
Improving energy performance through smart design and operational strategies.
Area Energy Planning
Developing regional energy strategies to optimize sustainability, cost, and resource use.

At Sener, we deliver combined cycle power plants that maximize efficiency, cut emissions, and integrate hydrogen readiness — building today the flexible assets needed for tomorrow’s energy mix.

Bio-fuels & E-fuels

biofuel

Bio-fuels & E-fuels

Decarbonizing transport and industry with next-generation fuels

Producing next-generation fuels for transport and industry decarbonization

At Sener, we see bio-fuels and e-fuels as essential tools for achieving net-zero goals. They provide a pathway to decarbonize sectors where electrification alone is not sufficient. By converting biomass and waste into renewable fuels, and by producing synthetic molecules through renewable hydrogen and captured CO₂, we create sustainable alternatives to fossil fuels that strengthen energy security and accelerate climate action.

We integrate innovation, circular economy principles, and renewable fuels into sustainable infrastructures

Buque capturador de CO2

Our solutions range from biofuel production facilities to e-fuel projects based on high-purity syngas or methanol. We also apply our naval engineering capabilities to bunkering solutions, enabling safe and efficient distribution of sustainable fuels.

Why choose us 

Our approach leverages waste recovery, gasification, and pyrolysis to produce renewable molecules. By integrating bio-fuels and e-fuels into industrial processes and transport systems, we create synergies between the circular economy and decarbonization. Each project is designed to reduce emissions, repurpose resources, and provide scalable solutions to energy and environmental challenges.

How we work 

We follow a structured methodology that begins with feedstock analysis, identifying biomass, waste, or CO₂ streams as raw material for fuel production. In design, our teams model conversion processes—gasification, pyrolysis, fermentation, or catalytic synthesis—selecting the most efficient and cost-effective route. Implementation is carried out under EPC contracts that integrate civil, mechanical, chemical, and electrical scopes, ensuring safe commissioning and compliance with strict regulations. Once in operation, we provide monitoring, maintenance, and upgrades that ensure plants remain competitive as markets and standards evolve.

We ensure scalability and adaptability in every project

Our facilities are designed to expand with growing demand and adapt to new regulations. Whether through modular plant concepts, digital monitoring of conversion processes, or integration with renewable hydrogen supply chains, we build infrastructures that evolve over time. This adaptability ensures that bio-fuels and e-fuels remain viable, reliable, and aligned with the rapid pace of energy transition.

Integrated solutions for renewable fuel development

We deliver engineering and EPC services for plants that produce bio-fuels and e-fuels from biomass, waste, and renewable hydrogen.

Waste to energy
Converting waste into energy through sustainable and efficient technologies.
Structural engineering
Engineering structural systems for safety, performance, and architectural integration.
Seismic design
Engineering structures to withstand seismic forces and ensure occupant safety.
Procurement
Managing procurement processes to ensure cost-effective and timely project delivery.
Planning policy advice
Advising on planning policies to support sustainable development and compliance.
EPC
Executing turnkey engineering, procurement, and construction projects with full accountability.
Energy efficiency
Improving energy performance through smart design and operational strategies.
Area Energy Planning
Developing regional energy strategies to optimize sustainability, cost, and resource use.
1
8

At Sener, we develop bio-fuels and e-fuels that transform waste, biomass, and renewable hydrogen into next-generation energy — decarbonizing transport and industry worldwide.

Thermal Generation

sener-cogeneracion-hidrogeno-scholven-uniper

Thermal Generation

Enabling cleaner heat and power through fuel flexibility

Modernizing thermal power with hydrogen-ready solutions

Thermal generation continues to play a central role in ensuring baseload energy and reliable district heating. At Sener, we focus on modernizing these assets to align with the global energy transition. By replacing coal plants with hydrogen-ready gas turbine stations, we help reduce emissions while guaranteeing security of supply. Our projects in Germany with EnBW show how thermal generation can evolve into a clean, flexible backbone for Europe’s low-carbon future.

Streamlined solutions for modern thermal plant services

We deliver services that cover the full lifecycle of thermal plants, covering from all stages of engineering design (feasibility studies, conceptual design, FEED and capex estimations, detail engineering and Owner Engineering) to EPC execution, operation, and maintenance. 

CCGT – Combined Cycle Gas Turbines
We engineer combined cycle power plants that pair high efficiency with fuel flexibility—hydrogen-ready CHP solutions that cut emissions today and prepare for 100% renewable gases tomorrow.
Explore
OCGT – Open Cycle Gas Turbines
We engineer open cycle gas turbine solutions that deliver fast, flexible power with proven integration in complex industrial settings—optimized for performance, availability, and lifecycle value.
Explore
Cogeneration
We design and deliver cogeneration plants that integrate heat and power, cut emissions, and prepare industry for a sustainable, hydrogen-ready future.
Explore

We engineer today’s thermal plants for tomorrow’s energy mix

Our portfolio includes combined cycle gas turbines (CCGT), co-generation plants, and hydrogen-ready retrofits inall ranges of capacities, from aeroderivaties to the newest H-class technologies. These solutions enable clients to reduce CO₂ emissions today and prepare their assets for green hydrogen in the coming decades.

Why choose us

Sener has decades of expertise in complex power infrastructure worldwide. In Germany, we are working with EnBW, General Electric, and Bonatti to replace two coal-fired power plants with 1.4 GW hydrogen-ready CCGT plants at the Heilbronn and Altbach/Deizisau sites. These facilities will initially run on natural gas and will progressively be adapted to burn 100% hydrogen from the 2030s, helping EnBW reach its climate neutrality target by 2035. Beyond design and construction, the contracts also include long-term servicing and maintenance, securing reliable operation for years to come.

Our approach ensures flexibility from day one. By designing CHP (combined heat and power) functionality, plants can deliver both electricity and heat to surrounding communities or industries, increasing overall efficiency and sustainability.

How we work

We apply an end-to-end methodology:
Assessment: studying existing coal infrastructure, demand for power and heat, fuel availability, and regulatory requirements.

Design: by optimizing plant design, selecting the most suitable gas turbine technologies, modelling output, providing capex estimations and permitting support to clients, as well as designing for hydrogen readiness.

Execution: delivering EPC contracts, performing the whole detail engineering of the plant with our own internal resources, preparing sites, installing turbines, heat recovery systems, emissions controls and commissioning of the power plant.

Operation: providing O&M services that ensure reliability, monitor efficiency, .

This structured process ensures technical robustness and regulatory compliance while preparing assets for future decarbonisation.

Delivering thermal projects across energy markets

Sener is present globally, with projects ranging from Europe´s biggest regasification terminals to H-class CCGT plants. Our multidisciplinary engineering and EPC delivery ensure that each project meets local demands while aligning with long-term sustainability goals. By replacing coal with flexible gas and hydrogen ready solutions, we demonstrate how thermal generation remains a cornerstone of secure and sustainable power.

At Sener, we modernize thermal generation with flexible solutions that guarantee energy supply and support the transition toward a sustainable energy mix.

Biogas

biogas-recurso_1

Biogas 

Turning organic waste into renewable energy

Engineering biogas solutions that close the loop of the circular economy

At Sener, we see biogas as a vital part of the circular economy and the energy transition. Produced from organic residues through anaerobic digestion, biogas is a renewable fuel that can be upgraded into biomethane and injected into the natural gas grid. By converting waste into energy, we reduce emissions, provide sustainable feedstock for agriculture, and strengthen energy independence. Our expertise covers engineering, EPC, and operation of plants that transform waste into clean energy solutions.

We transform waste into renewable gas and agricultural resources

Sener is at the forefront of biogas engineering in Spain and Europe. Our recent contract with Ence Biogas covers the conceptual, basic, and detailed engineering of six biomethane plants across Spain. Once in operation (2025–2026), they will inject around 300 GWh of biomethane per year into the national gas grid and generate 90,000 tonnes of biofertilizer annually for agricultural use.

Why choose us 

Our plants not only deliver biomethane to the grid but also produce fertilizers that return nutrients to the soil. This integration of energy and agriculture closes the loop of the circular economy, turning waste into two essential resources. By embedding sustainability into every design, we create infrastructures that reduce emissions while providing economic benefits for local communities.

How we work 

Our methodology combines process know-how with multidisciplinary engineering. In the early stages, we study feedstock availability, logistics, and regulatory frameworks. During design, our teams model anaerobic digestion, gas upgrading, and storage systems to maximize efficiency. Implementation is managed under EPC contracts with strict quality and safety standards. In the operational phase, we provide digital monitoring and predictive maintenance to ensure consistent output and regulatory compliance.

We deliver long-term competitiveness through flexible design

We prepare each biogas facility for future integration with renewable gas networks. By designing modular systems, we enable capacity expansion as feedstock availability grows. Our projects also incorporate digital control systems that optimize digestion and upgrading, improving efficiency and reducing operational costs. This ensures that biomethane remains competitive and reliable over the long term.

Global expertise in biogas engineering

Our portfolio includes the Ence Biogas plants in Spain and the EDF PEI bioenergy project in Corsica, which will provide 130 MW of capacity and replace the aging Le Vazzio power station by 2027–2028.

Integrated biogas solutions for industry and utilities

We deliver biogas plants that integrate digestion, purification and upgrading, producing grid-quality biomethane and biofertilizers that drive both clean energy and sustainable agriculture.

Waste to energy

Converting waste into energy through sustainable and efficient technologies.

Structural engineering

Engineering structural systems for safety, performance, and architectural integration.

Seismic design

Engineering structures to withstand seismic forces and ensure occupant safety.

Procurement

Managing procurement processes to ensure cost-effective and timely project delivery.

Planning policy advice

Advising on planning policies to support sustainable development and compliance.

EPC

Executing turnkey engineering, procurement, and construction projects with full accountability.

Energy efficiency

Improving energy performance through smart design and operational strategies.

Area Energy Planning

Developing regional energy strategies to optimize sustainability, cost, and resource use.
1
8

At Sener, we design biogas plants that transform organic waste into biomethane and biofertilizers — advancing the circular economy, reducing emissions, and strengthening energy independence.

Green Hydrogen & Carriers

Altbach_Fr01_09_singleshaft

Green Hydrogen & Carriers

Unlocking the potential of hydrogen for a net-zero future

Scaling green hydrogen and carriers into real energy solutions

At Sener, we see green hydrogen as one of the most strategic tools for achieving climate neutrality. Produced through electrolysis powered by renewable energy, it provides a clean and versatile energy vector that can decarbonize industries, mobility, and power generation. With our multidisciplinary engineering and EPC delivery capacity, we are at the forefront of making hydrogen a practical solution for real economies.

We turn pioneering projects into scalable energy solutions

Sener has consolidated its role as a pioneer in the hydrogen sector with flagship projects in Spain and Europe. The BenortH2 project is designed to produce more than 20,000 tonnes of green hydrogen annually, avoiding about 120,000 tonnes of CO₂ emissions per year. In Extremadura, the Vector H project will combine a 5 MW electrolyser with photovoltaic generation to produce hydrogen for refuelling stations serving trains, heavy trucks, and light vehicles, and for blending into the gas grid, with operations starting in 2026.

Why choose us 

The strength of our approach lies in scalability. BenortH2 demonstrates how hydrogen can be integrated into existing networks and industrial processes at large scale, while Vector H shows its viability in local mobility, distributed supply, and grid blending. By delivering projects across different scales, we prove that green hydrogen and carriers are not just pilot initiatives but the foundation for replicable, global energy solutions.

How we work 

Our methodology combines applied research, conceptual analysis, and turnkey execution.

We begin with studies comparing carriers such as compressed hydrogen, liquefied hydrogen, ammonia, methanol, and liquid organic options, identifying the most competitive solution for each application.


In design, we integrate renewable generation, electrolyser technology, storage tanks, and carrier conversion systems, using advanced digital modelling and economic analysis to validate performance.


During execution, we manage EPC contracts that cover everything from electrolysers and balance of plant to compression systems and export facilities.


Finally, we support long-term operation with predictive maintenance, monitoring, and upgrades to ensure that plants evolve with market demand and regulatory requirements.

We integrate hydrogen into real economies and industrial systems

Our projects are conceived to have immediate industrial impact. By linking hydrogen generation with refuelling stations, power plants, and chemical conversion, we accelerate adoption across multiple sectors. Through hydrogen carriers such as ammonia and methanol, we open pathways for international trade, transforming renewable molecules into globally tradable commodities.

Global experience that translates into local impact.

Our expertise is reflected in projects like BenortH2 and VectorH in Spain, the H2Ocean initiative for maritime mobility, and hydrogen-ready power plants in Germany.

Integrated hydrogen generation, transport, and storage solutions

We develop green hydrogen and carriers infrastructures that include electrolysis plants, compressed and liquid storage, and conversion into synthetic fuels.

BIM

Integrating Building Information Modeling to streamline design, construction, and asset management.

Seismic design

Engineering structures to withstand seismic forces and ensure occupant safety.

Procurement

Managing procurement processes to ensure cost-effective and timely project delivery.

Planning policy advice

Advising on planning policies to support sustainable development and compliance.

Offshore energy transmission and inteconnectors

Connecting offshore energy sources to grids through advanced transmission systems.

EPC

Executing turnkey engineering, procurement, and construction projects with full accountability.

Energy efficiency

Improving energy performance through smart design and operational strategies.

Construction management

Managing construction projects to ensure timely delivery, quality, and cost control.

Computational fluid dynamics

Simulating fluid behavior to optimize designs in energy, aerospace, and transport.

Comissioning

Ensuring systems are tested and validated for optimal performance before operational launch.

Civil engineering

Delivering structural and infrastructure solutions for resilient and efficient environments.

Area Energy Planning

Developing regional energy strategies to optimize sustainability, cost, and resource use.
1
12

At Sener, we develop green hydrogen and carrier projects that decarbonize industry and mobility, enable global renewable fuel trade, and accelerate the transition to a net-zero future.

Sustainable Fuels

biogas-plant-recurso

Sustainable Fuels

Driving decarbonization with alternative energy vectors

Developing renewable fuels that decarbonize hard-to-electrify sectors

At Sener, we are committed to the implementation of sustainable fuels as key drivers of the energy transition. These fuels reduce dependence on fossil energy, lower emissions, and create new pathways for decarbonizing sectors that are difficult to electrify. By applying multidisciplinary engineering and innovative technologies, we design and deliver projects that integrate renewable gases, biofuels, e-fuels, hydrogen and ammonia into energy and industrial systems.

We turn innovation into scalable decarbonization projects

We design facilities for green hydrogen, ammonia, biogas, bio and synthetic fuels, and other renewable energy vectors, integrating the most adequate technologies to ensure that projects are efficient, competitive, and compliant with stringent environmental standards.

Our engineering goes beyond design—we implement sustainable fuels solutions that are scalable, adaptable, and proven in real markets. Projects such as biogas recovery plants in Spain or hydrogen-ready combined cycle plants in Germany show how we embed future fuels into infrastructures that are already transforming energy landscapes. By aligning innovation with feasibility, we accelerate adoption and deliver tangible climate impact.

Why choose us

Sener is recognised for its ability to integrate advanced technologies into large-scale industrial processes.

We work with the manufacturing sector to strengthen competitiveness and sustainability roadmaps, providing consulting, engineering and execution within a unified framework.

Our expertise in renewable energies, low-carbon fuels and gases, process optimisation and industrial decarbonisation makes us a reliable partner for companies aiming to reduce their reliance on fossil resources while enhancing operational performance.

How we work

We apply a structured methodology based on monitoring, optimization, transformation, and management.

In monitoring, we analyze energy demand, available feedstocks, and regulatory conditions.

Optimization involves simulations of different vectors, whether biogas, syngas, hydrogen, or e-fuels, to define the most efficient solution.

Transformation is where design becomes reality: engineering, EPC or EPCm delivery of plants, retrofits, and integration with existing assets. Finally, management ensures that performance is maintained through predictive maintenance, upgrades, and adaptation to new feedstocks or technologies.

We integrate fuels into industry with flexibility and foresight

Our lifecycle approach ensures that sustainable fuels projects remain competitive and resilient. We embed flexibility for multiple feedstocks, hybrid configurations, and digital monitoring. By preparing assets to evolve with market and regulatory changes, we ensure that industries remain aligned with decarbonization objectives and gain long-term competitiveness.

At Sener, we engineer sustainable fuels projects that transform renewable resources into clean energy — helping industries cut emissions, enhance competitiveness, and drive the energy transition.

Compressor stations

sener-lng-virtual-bolivia

Compressor stations

Securing pressure and flow in long-distance gas networks

Engineering compressor facilities for secure long-distance gas transport

In natural gas transport, compressor stations are essential to maintain the pressure required for gas to move safely and efficiently through thousands of kilometers of pipelines. At Sener, we design and deliver these facilities under full EPC scope, applying multidisciplinary expertise to guarantee safety, efficiency, and reliability. With decades of experience in energy infrastructures, we ensure that each station is tailored to network needs.

We transform pressure management into resilient infrastructure

Our approach goes beyond installing turbo-compressors. By integrating digital controls, predictive maintenance, and redundancy systems, we turn compressor stations into resilient nodes that safeguard the entire network. This holistic vision reduces risks, extends equipment life, and ensures that gas transport systems remain stable under fluctuating demand and evolving market conditions

Why choose us 

Sener’s leadership in gas infrastructure is based on consistent delivery of LNG terminals, cryogenic tanks, and distribution networks. That same engineering culture is applied to compressor stations, where precision in integration and performance is critical. We bring process, mechanical, electrical, and civil engineering expertise to projects that must operate continuously and safely in demanding conditions.

How we work 

Our methodology covers all phases of a project. In assessment, we analyze network demand, pipeline length, and regulatory frameworks. In design, we optimize compressor selection, station layout and, filtration systems.

Every facility integrates a Supervisory Control and Data Acquisition (SCADA) system connected to the central pipeline control network, ensuring secure monitoring and coordinated operation.

Implementation is carried out under turnkey EPC contracts with strict QA/QC across civil works, equipment installation, and automation. Once operational, we support clients with monitoring, predictive analytics, and upgrades that ensure efficiency and compliance throughout the lifecycle.

We embed intelligence into every stage of operation

Each natural gas compressor station we deliver is equipped with advanced SCADA systems that provide real-time visibility and control. Over time, we integrate upgrades that enhance automation, reduce emissions, and prepare networks to handle hydrogen or renewable gas blends. This combination of digital intelligence and engineering excellence ensures that compressor facilities evolve alongside the energy transition.

Compressor station services for reliable gas transport

We design and build natural gas compressor stations that incorporate turbo-compressors, filtration and metering systems, separators, electrical infrastructure, and auxiliary services.

BIM

Integrating Building Information Modeling to streamline design, construction, and asset management.

Seismic design

Engineering structures to withstand seismic forces and ensure occupant safety.

Procurement

Managing procurement processes to ensure cost-effective and timely project delivery.

Planning policy advice

Advising on planning policies to support sustainable development and compliance.

EPC

Executing turnkey engineering, procurement, and construction projects with full accountability.

Energy efficiency

Improving energy performance through smart design and operational strategies.

Construction management

Managing construction projects to ensure timely delivery, quality, and cost control.

Comissioning

Ensuring systems are tested and validated for optimal performance before operational launch.

Civil engineering

Delivering structural and infrastructure solutions for resilient and efficient environments.

Area Energy Planning

Developing regional energy strategies to optimize sustainability, cost, and resource use.
1
10

At Sener, we design and build compressor stations that secure gas transport with precision engineering and digital intelligence — ensuring reliable, efficient, and future-ready networks energy supply for communities while preparing networks for a decarbonized future.

Virtual LNG distribution pipelines

Aeroview b.v. - Rotterdam

Virtual LNG distribution pipelines

Expanding LNG access where pipelines are not viable

Expanding energy access through modular LNG distribution networks

Sener develops Virtual LNG distribution pipelines to bring liquefied natural gas to regions where building conventional pipelines is not technically or economically feasible. By combining mid-scale liquefaction plants with fleets of LNG tankers and satellite regasification stations, we provide a flexible, competitive, and secure supply solution that strengthens energy access and reduces dependence on centralized infrastructure.

We deliver energy access through modular, scalable solutions

 

Our multidisciplinary know-how in large-scale projects is transferred to modular, distributed networks that supply homes, industries, and smaller power plants, creating smart gas grids that are modular and adaptable to demand fluctuations. We deliver local solutions that make energy accessible where it is needed most.

Why choose us 

Sener combines deep experience in LNG terminals, cryogenic storage, and marine works with proven expertise in modular distribution concepts. This knowledge enables us to design virtual networks that are robust, efficient, and integrated into existing energy systems. Our role as EPC contractor covers the full scope—from liquefaction plants and logistics chains to satellite regasification stations and local distribution.

Our Virtual LNG distribution pipelines projects demonstrate how we adapt infrastructure to client needs. By integrating liquefaction, transport, and regasification, we build modular systems that can expand in step with demand growth. This scalability makes our solutions especially valuable for industrial clusters, remote areas, or developing markets where reliability and flexibility are critical. 

How we work 

We start by analyzing demand centers, distances to LNG supply points, and transportation options. In design, our engineers model the logistics chain, optimize cryogenic tank sizes, and plan for regasification capacity at satellite stations. Implementation is carried out under EPC contracts that include liquefaction plants, transport fleets, and regasification sites, with strict adherence to safety and environmental standards. Finally, in operation, we provide monitoring systems and O&M services that guarantee efficiency across the entire virtual network.

We ensure efficiency and resilience across the distribution chain

Our methodology ensures that every component of the Virtual LNG distribution pipeline—from tankers to regasification units—is integrated into a cohesive system. By embedding digital monitoring and predictive maintenance, we guarantee that networks operate efficiently, adapt to demand changes, and maintain resilience even in remote or challenging environments. This makes Sener a reliable partner for long-term energy security. 

Experience delivering virtual LNG pipeline projects

Sener’s virtual pipeline solutions build on our extensive LNG portfolio, which includes terminals in Sagunto, BBG, Gate Terminal in Rotterdam, Dunkirk, Zeebrugge, and German LNG.

Virtual infrastructure services for flexible LNG distribution

Our approach to Virtual LNG distribution pipelines ensures that LNG can be transported safely by road, rail, or river to strategically located regasification stations.

Seismic design

Engineering structures to withstand seismic forces and ensure occupant safety.

Planning policy advice

Advising on planning policies to support sustainable development and compliance.

Energy efficiency

Improving energy performance through smart design and operational strategies.

Area Energy Planning

Developing regional energy strategies to optimize sustainability, cost, and resource use.

At Sener, we design Virtual LNG distribution pipelines that extend reliable, flexible energy access to regions beyond conventional networks — combining modularity, safety, and efficiency

Regasification terminal & cryogenic tanks

sener-GNL-Dunkerque

Regasification terminal & cryogenic tanks

Engineering LNG infrastructure for safety, efficiency, and resilience

Setting benchmarks in LNG storage and regasification engineering

Sener has established itself as one of the most trusted partners in the design and construction of regasification terminals and cryogenic tanks.

With decades of EPC experience, Sener combines advanced engineering, proprietary technologies, and execution capacity to deliver terminals that meet the highest safety and environmental standards while remaining adaptable to the integration of renewable gases.

We deliver reliable storage with proprietary cryogenic designs

Our engineering teams have developed cryogenic tank designs that meet the strictest requirements and achieve superior construction outcomes. By optimizing structural calculations, materials, and boil-off gas management, we provide tanks that are robust, safe, and efficient over decades of operation. This proprietary know-how has been applied in landmark projects such as BBG and Gate Terminal, giving Sener a unique position in the global LNG market

Why choose us 

Our track record includes benchmark references that highlight both scale and innovation. At Gate Terminal in Rotterdam, one of Europe’s largest LNG projects, we participated in major expansions that included the construction of a 180,000 m³ tank and additional throughput capacity. In Spain, the BBG expansion saw our engineers design, procure, construct, and start up a 150,000 m³ tank—the first in the country to comply with EN 1473 and EN 14620 European standards. At the German LNG project in Brunsbüttel, we are responsible for delivering two 165,000 m³ tanks as part of a strategic terminal with a planned capacity of 8 BCMA. These references show our capacity to combine large EPC scopes with proprietary innovations that set new benchmarks for safety and efficiency.

How we work 

We manage the full lifecycle of LNG infrastructure. In assessment, we study demand, marine conditions, regulatory requirements, and opportunities for fuel transition. In design, we apply advanced modeling and our own gas engineering services to optimize cryogenic tanks, vaporisers, compressor layouts, and jetties. Implementation is carried out under EPC contracts that integrate civil, process, marine, and electrical scopes with rigorous QA/QC. Finally, in operation, we support clients with predictive maintenance, boil-off gas reliquefaction, and upgrades that ensure assets are hydrogen-ready and future-proof.

We ensure safety and efficiency from design to long-term operation

From the early design phase, we embed safety, durability, and adaptability into every cryogenic storage tank and terminal. Our lifecycle services ensure that assets remain compliant with tightening environmental standards and resilient against evolving energy demands. This combination of EPC excellence and proprietary engineering makes Sener a trusted partner for critical LNG infrastructure.

Global experience with local impact

Sener’s expertise is reflected in strategic LNG projects such as Gate Terminal in Rotterdam, the BBG expansion in Spain, and German LNG in Brunsbüttel, along with work at Dunkirk and Zeebrugge.

Integrated LNG regasification and storage services

We deliver fully integrated solutions that combine process plants, marine jetties, and cryogenic storage systems.

BIM

Integrating Building Information Modeling to streamline design, construction, and asset management.

Seismic design

Engineering structures to withstand seismic forces and ensure occupant safety.

Procurement

Managing procurement processes to ensure cost-effective and timely project delivery.

Planning policy advice

Advising on planning policies to support sustainable development and compliance.

Offshore energy transmission and inteconnectors

Connecting offshore energy sources to grids through advanced transmission systems.

EPC

Executing turnkey engineering, procurement, and construction projects with full accountability.

Energy efficiency

Improving energy performance through smart design and operational strategies.

Construction management

Managing construction projects to ensure timely delivery, quality, and cost control.

Comissioning

Ensuring systems are tested and validated for optimal performance before operational launch.

Civil engineering

Delivering structural and infrastructure solutions for resilient and efficient environments.

Area Energy Planning

Developing regional energy strategies to optimize sustainability, cost, and resource use.
1
11

At Sener, we engineer regasification terminals and cryogenic tanks that guarantee safe, efficient LNG supply today while ensuring adaptability for hydrogen and renewable gases tomorrow.

LNG – Liquefied Natural Gas

sener-lng-zeebrugge-regasification-plant_4

LNG – Liquefied Natural Gas

Leading LNG infrastructure engineering across global energy markets

Delivering LNG terminals that secure supply and prepare for hydrogen

Sener has become a global reference in LNG – liquefied natural gas infrastructures, combining engineering excellence with innovation to deliver assets that are critical for energy security.

For decades, our teams have designed and built regasification terminals, cryogenic tanks and floating solutions under full EPC scope, ensuring safe and efficient supply. Today, we adapt this experience to prepare infrastructures for renewable gases such as hydrogen, keeping them relevant in a decarbonizing energy landscape.

We deliver LNG infrastructure at scale with proven innovation

Terminal de gas natural de Sagunto (España)

Our innovation is evident in projects such as Gate Terminal, where we built a 180,000 m³ tank and expanded regasification capacity by 1.5 BCMA. In the BBG expansion, we delivered a 150,000 m³ tank, the first in Spain to be built under EN 1473 and EN 14620 standards. The German LNG project confirms our capacity to combine large-scale EPC delivery with future readiness, integrating hydrogen compatibility into a strategic terminal. Each of these achievements demonstrates how Sener merges innovation and execution capability to deliver resilient LNG infrastructure.

Why choose us 

Our reputation is built on the successful execution of some of Europe’s most emblematic LNG references. In Spain, we contributed to the Sagunto and BBG terminals, both milestones in the country’s LNG development. In the Netherlands, we worked at Gate Terminal in Rotterdam, a facility that has grown to become one of the continent’s largest LNG hubs. In Belgium, we delivered advanced engineering in Dunkirk and Zeebrugge, strengthening access points to Northwest Europe. And in Germany, the German LNG project in Brunsbüttel is set to provide up to 8 BCMA of regasification capacity with two 165,000 m³ tanks. These projects secure access to the LNG gas market and guarantee flexible, safe supply. They highlight our ability to manage complex EPC scopes while ensuring technical and commercial reliability.

How we work 

We approach LNG with a lifecycle vision. Assessment covers market demand, marine access, safety and environmental factors, and long-term transition potential. In design, our gas engineering services optimize cryogenic tank structures, vaporisers, compressor stations and marine jetties, embedding proprietary boil-off gas reliquefiers and recondensers. Implementation is carried out under EPC contracts that align civil, marine, process and electrical scopes under strict QA/QC. Finally, our operation services include predictive maintenance, boil-off gas control, and upgrade programs that extend the life of assets and adapt them to renewable gases.

We ensure value through EPC excellence and lifecycle support

We do more than build LNG facilities; we ensure they remain competitive throughout their lifecycle. By offering floating solutions such as FSRU, modular expansions, and hydrogen-readiness, we keep LNG infrastructure flexible in the face of changing markets. With proven LNG gas market expertise, our clients benefit from infrastructure that secures immediate supply while preparing for the hydrogen economy.

Integrated LNG services from regasification to storage

We provide LNG gas infrastructure solutions that include regasification terminals, cryogenic tanks and floating storage units.

BIM

Integrating Building Information Modeling to streamline design, construction, and asset management.

Seismic design

Engineering structures to withstand seismic forces and ensure occupant safety.

Procurement

Managing procurement processes to ensure cost-effective and timely project delivery.

Planning policy advice

Advising on planning policies to support sustainable development and compliance.

Offshore energy transmission and inteconnectors

Connecting offshore energy sources to grids through advanced transmission systems.

EPC

Executing turnkey engineering, procurement, and construction projects with full accountability.

Energy efficiency

Improving energy performance through smart design and operational strategies.

Construction management

Managing construction projects to ensure timely delivery, quality, and cost control.

Comissioning

Ensuring systems are tested and validated for optimal performance before operational launch.

Civil engineering

Delivering structural and infrastructure solutions for resilient and efficient environments.

Area Energy Planning

Developing regional energy strategies to optimize sustainability, cost, and resource use.
1
11

At Sener, we deliver LNG infrastructures that ensure secure, efficient supply today while integrating innovation and hydrogen readiness for a sustainable energy future.