Strategic energy storage infrastructure
Trinity Energy Storage operates and develops energy storage infrastructures that contribute to the security and stability of the current system and enable progress towards new storage capacities for the future.
Our operational experience, subsurface knowledge, and innovation form the foundation for developing safe, efficient infrastructure ready to support the energy transition.
Energy storage is a strategic infrastructure that guarantees the security, flexibility, and stability of the energy system. It enables the management of differences between generation and demand, reinforces security of supply, and progressively facilitates the integration of new renewable energy sources.
Marismas and Aljarafe connect our current experience with the development of new storage capacities for the future.
Safety, reliability, and technical excellence are fundamental principles in the operation and development of Trinity Energy Storage's infrastructure. The experience gained at Marismas provides a solid foundation for tackling new storage capacities.
Furthermore, we hold the relevant certifications that endorse our commitment to the highest quality standards and our dedication to creating safe working environments.
ISO 9001:2015, Quality Management Systems
ISO 45001:2018, Occupational Health and Safety
Frequently Asked Questions
What is energy storage infrastructure?
Energy storage infrastructure makes it possible to store energy and recover it whenever the system requires it. Trinity Energy Storage primarily works with underground storage solutions.
Why is energy storage strategic?
Energy storage is strategic because it provides security, stability and flexibility to the system. It enables the management of differences between generation and demand, and facilitates the progressive integration of new energy sources.
What storage infrastructure does Trinity Energy Storage have?
Trinity Energy Storage holds the Marismas natural gas Underground Storage Concession as its operational core and is developing Aljarafe as a future underground storage infrastructure for renewable hydrogen.
What is the Marismas storage facility?
Marismas is an underground natural gas storage facility located in Huelva. It consists of the former Marismas-3 and Rincón fields and is integrated into the Spanish gas system.
What is the storage capacity of Marismas?
Marismas has a recognised maximum operational capacity of 1,615 GWh.
What is the Aljarafe Project?
The Aljarafe Project is Trinity Energy Storage's initiative to develop large-scale underground renewable hydrogen storage by repurposing three former depleted gas fields.
What is the relationship between Marismas and Aljarafe?
Marismas represents the consolidated operational expertise of Trinity Energy Storage, whilst Aljarafe translates that knowledge into the development of new underground storage capacities for renewable hydrogen.
How can a depleted field be used to store energy?
Once the gas naturally held within the reservoir is depleted, it is converted to serve as a storage facility.
What role does renewable hydrogen play in future storage infrastructure?
Renewable hydrogen is one of Trinity Energy Storage's main lines of future development. Aljarafe is specifically designed as a large-scale underground renewable hydrogen storage facility.
How does R+D+I contribute to the development of new storage infrastructure?
R+D+I enables the study of hydrogen behaviour, storage integrity, injection and withdrawal processes, and monitoring technologies prior to the development of new infrastructure.