Energy storage infrastructure to drive the energy transition
At Trinity Energy Storage, we develop, operate and maintain strategic underground energy storage infrastructure, and we undertake R+D+I projects focused on the storage of renewable gases and renewable hydrogen. We combine operational experience, technical expertise and innovation to contribute to the security of supply and the decarbonisation of the economy.
Trinity Energy Storage
Trinity Energy Storage is an operator specialising in strategic underground energy storage infrastructure. Our activity combines the operation of consolidated assets, the development of new storage capacity, and intensive research focused on the needs of the energy system of the future.
The experience gained in underground energy storage, together with technical expertise and innovation, allows us to connect the security of supply of the present with the development of new solutions for the energy transition.
Our areas of activity
We carry out our activities across three complementary areas connecting operations, innovation and energy transition.
Storage infrastructure is an essential element of the energy system. It provides security, stability and flexibility to the system. In addition, it balances differences between production and demand, enabling the system to integrate new energy sources.
Renewable hydrogen is set to play a key role in the energy transition and in the decarbonisation of sectors where direct electrification poses greater challenges.
Europe and Spain consider the development of a renewable hydrogen industry to be strategic for advancing the energy transition, as reflected in REPowerEU and the National Integrated Energy and Climate Plan.
For this new hydrogen economy to develop on a large scale, it will be necessary to have infrastructure capable of storing this energy vector in a safe and flexible manner.
Trinity Energy Storage's experience in underground storage and its R+D+I activities provide a solid foundation to make a decisive contribution to achieving this challenge.
Research and technological development are an essential part of Trinity Energy Storage. We participate in national and European initiatives that enable us to generate knowledge, validate technologies, and advance the development of underground renewable hydrogen storage.
Sustainability
We see sustainability as a core element of the way we operate, innovate, and develop new infrastructure.
Our objective is to contribute to an energy system that is more secure, flexible, and prepared to make progress in the decarbonisation of the economy.
We hold various certifications –AENOR– that endorse our approach, both in terms of the highest quality standards and regarding our full respect for the environment and commitment to creating safe working environments:
ISO 9001:2015, Quality management systems
ISO 14001:2015, Environmental management
ISO 45001:2018, Occupational health and safety
Highlights
Operation of strategic energy storage infrastructure.
Maximum operational capacity recognised in the Marismas infrastructure.
Marismas-3 and Rincón form the operational core; San Juan, Palancares and La Cerca represent the future
The corporate headquarters are located in Madrid, and its operational activities are carried out in Seville and Huelva.
EUH2STARS, GUARDIANE-Q, PureH2, UNDERGY and UES365 make up our R+D+I portfolio.
Current affairs driving the future
Discover the latest updates from Trinity Energy Storage: progress on our projects, innovation, collaboration, and new steps towards a more secure, flexible, and sustainable energy system.
Frequently Asked Questions
What is Trinity Energy Storage?
Trinity Energy Storage is a specialised operator of strategic energy storage infrastructure owned by Teset Capital. It develops, operates, and maintains storage assets, and delivers new capacity linked to renewable hydrogen.
What is the main activity of Trinity Energy Storage?
The core activity of Trinity Energy Storage is the development, operation and maintenance of underground energy storage infrastructure, combining operational assets with new projects and R+D+I initiatives.
What is energy storage infrastructure?
These are infrastructures that enable large-scale energy storage so that it is available when the system requires it. At Trinity Energy Storage, this activity is primarily carried out through underground natural gas and hydrogen storage solutions.
Why is energy storage important?
Energy storage provides security, stability and flexibility to the system. It also helps manage seasonal differences between generation and demand, and facilitates the integration of new energy sources.
What are renewable gases?
Renewable gases are energy carriers produced from renewable sources. In Trinity Energy Storage's strategy, renewable hydrogen plays a particularly relevant role due to its future storage needs.
What is renewable hydrogen?
Renewable hydrogen is an energy vector produced from renewable energy. The large-scale production and subsequent long-term storage of renewable hydrogen can make a decisive contribution to the energy transition and the decarbonisation of specific sectors and end-uses.
What is the relationship between energy storage and renewable hydrogen?
Hydrogen storage makes it possible to manage the mismatch between renewable production (variable by nature) and demand, providing seasonal flexibility, security of supply and price stability. In addition, it helps to reduce dependence on fossil fuels and advance the electrification of sectors that are hard to decarbonise, such as heavy industry and maritime transport.
What are Marismas and Aljarafe?
The Marismas concession is the current operational core of Trinity Energy Storage, and its activity is the storage of natural gas. Aljarafe is the strategic project for developing large-scale underground renewable hydrogen storage and is located in the province of Seville.
How does Trinity Energy Storage drive R+D+I?
Trinity Energy Storage is actively participating in the development of the European renewable hydrogen underground storage ecosystem and is involved in five international R&D initiatives, with a combined investment of 49 million euros.
Which R+D+I projects is Trinity Energy Storage involved in?
There are five main R+D+I projects: EUH2STARS, GUARDIANE-Q, PureH2, UNDERGY, and UES365.
How does Trinity Energy Storage contribute to the energy transition?
Trinity Energy Storage contributes through the operation of storage infrastructure, the development of new capacities linked to renewable hydrogen, and participation in R+D+I projects.