Strategic energy storage infrastructures for the present and the future
Trinity Energy Storage develops, operates and maintains energy storage infrastructure, combining operational expertise, technical knowledge and innovation to contribute to security of supply and the development of the future energy system.
Trinity Energy Storage
Trinity Energy Storage is an operator of strategic energy storage infrastructure. Our activity focuses on the development, operation, and maintenance of underground storage infrastructure, combining operational assets with the development of new capacities primarily linked to renewable hydrogen storage.
We operate across three main areas:
Natural gas storage as operators of the “Marismas” Storage facility
Development of underground renewable hydrogen storage through Aljarafe
Research and innovation through national and European R+D+I projects.
Our team
The Trinity team is made up of professionals with more than 20 years of experience in managing national and international projects and in operating underground energy storage infrastructures.
Additionally, Trinity's technical team participates in various European Union-funded research projects focused on renewable energy storage (mainly hydrogen), as well as in multiple forums, industry associations, and other research groups.
Trinity Energy Storage has its headquarters in Madrid and operates the Marismas Underground Storage facility from its operational base in the province of Huelva
Our way of working
Our activity is underpinned by five principles that guide both the operation of our infrastructure and the development of new projects.
We use research and innovation to reduce uncertainties and advance towards new energy storage solutions. We actively participate in the development of the European renewable hydrogen underground storage ecosystem and are involved in various national and European initiatives.
We store tomorrow's energy
Our projects
Trinity Energy Storage provides the system with infrastructure that allows energy supply and demand to be balanced. In this way, we help ensure the system is able to cope with peak consumption periods that may occur throughout the year.
R+D+i
Research and innovation are fundamental to the development of Trinity Energy Storage's future infrastructure.
We are actively participating in the development of the European renewable hydrogen underground storage ecosystem and are present in five initiatives representing a joint investment of 49 million euros.
The objective of these projects is to generate knowledge and validate solutions related to energy storage and, in particular, to the underground storage of renewable hydrogen.
Trinity Energy Storage is a wholly-owned subsidiary of Teset Capital. Teset Capital is an independent fund manager specialising in European mid-market infrastructure investments.
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 an operator of strategic energy storage infrastructure. It combines operations, new project development, and R+D+I to bridge the needs of today's energy system with those of the future.
What is the main activity of Trinity Energy Storage?
Trinity Energy Storage operates in the underground energy storage sector. It operates Marismas, drives the Aljarafe Project, and participates in national and European R+D+I initiatives.
What type of infrastructure does Trinity Energy Storage operate?
Trinity Energy Storage operates underground natural gas storage infrastructure and develops new capacities geared towards the underground storage of renewable hydrogen.
What is Marismas?
Marismas is the operational core of Trinity Energy Storage. It is an underground natural gas storage facility located in Huelva, integrated into the Spanish gas system and operational since 2012.
What is the Aljarafe project?
Aljarafe is Trinity Energy Storage's strategic project to transform depleted gas fields into a large-scale underground renewable hydrogen storage infrastructure.
What role does renewable hydrogen play in Trinity Energy Storage's strategy?
Renewable hydrogen represents one of Trinity Energy Storage's main future areas of focus. The company is working to apply its underground storage expertise to the development of new capacities specifically for this energy vector.
How important is R+D+I to Trinity Energy Storage?
R+D+I enables the generation of knowledge, the reduction of uncertainties and the validation of solutions prior to developing new infrastructure. It is the link between current operational experience and future renewable hydrogen storage capabilities.
Where does Trinity Energy Storage operate?
Trinity Energy Storage has its corporate headquarters in Madrid and conducts operational activity primarily in Seville and Huelva.
Which group does Trinity Energy Storage belong to?
Trinity Energy Storage is a wholly-owned subsidiary of Teset Capital.