| Energy storage


Wales, to run on waste-derived fuel pellets has been abandoned and a new plan is now being promoted, which envisages transition of the Uskmouth site into a “sustainable energy park, which as a first step includes plans to deliver a battery energy storage system (BESS)”. The Uskmouth site has a 230 MW grid connection coupled with significant land and infrastructure that make it “a prime location for the delivery of a large-scale, commercially attractive, BESS facility”, says site owner and project developer Simec Atlantis Energy.


On 24 May, Simec Atlantis Energy announced that, via its portfolio company Uskmouth Energy Storage Limited (UES), it had entered into an agreement with Energy Optimisation Solutions and Quinbrook Infrastructure Partners to deliver a 230 MW/460 MWh battery energy storage system at the Uskmouth site. This would be one of the largest battery storage developments in the UK and represents “an anchoring project in the development of the Uskmouth site into a sustainable energy park.”


Simec says the project will provide about


Edina opts for battery liquid cooling


Edina, an on-site power generation solutions provider, has announced the launch of a battery energy storage system (BESS) technology integrating liquid-cooling. This is said to reduce energy consumption by 30% compared with air- cooled systems.


Edina says it has partnered with global tier 1 battery cell and inverter technology


manufacturers to engineer a 1-to-2-hour battery energy storage solution.


Liquid thermal management technology integrated within the LFP (lithium iron phosphate) battery rack significantly improves battery performance, energy availability, battery state of health and lifetime, and the levelised cost of storage (LCOS) compared to traditional air-cooled systems.


Edina battery storage system


£40 million in revenue over 30 years, of which about £11 million will be paid within the next 18 months, subject to the achievement of certain milestones.


UES will own and operate the new facility. The development requires a modification of the grid connection agreement and a planning application, the latter to be determined by Newport City Council. Construction is expected to take 18 months, with the battery storage facility expected to become operational towards the end of 2024.


Krummhörn put to the test for H2 storage


Large-volume hydrogen storage is an essential element of the energy transition and the development of a hydrogen economy in Germany, says Uniper, and suggest that existing gas storage facilities designed for natural gas need to be converted for the use of hydrogen. Uniper plans to test this at large scale and in a real environment at the former salt cavern storage facility in Krummhörn, northern Germany, which has not been used commercially since 2017.


The new storage facility will be one of the first


of its kind and is expected to be operational by 2024.


Uniper says it will invest around €10 million in the project, which will provide a storage volume of up to 250 000 m3


of hydrogen.


Doug Waters, managing director, Uniper Energy Storage, said: “Uniper has decided to move forward with this project independent of other funded projects in order to test the technology and processes as quickly as possible. Our goal is to develop a storage solution for green hydrogen on a commercial scale and later


offer it on the market. The storage capability of green electricity is one of the core issues of the energy transition and an essential building block for a CO2


-free future.”


The proximity to Wilhelmshaven will enable a connection to the Uniper’s “Green Wilhelmshaven” project. There, Uniper is developing two green hydrogen projects simultaneously: an import terminal for ammonia, able to produce hydrogen from the incoming ammonia; and a large-scale electrolysis plant, up to 1000 MW, for green hydrogen production.


Gravitricity and Arup to assess below ground H2


storage


Gravitricity and Arup have together secured funding from the UK Department of Business Energy & Industrial Strategy (BEIS) to study the feasibility of storing hydrogen in purpose-built underground shafts.


Edinburgh-based gravity energy storage specialists Gravitricity and global built environment consultancy Arup will collaborate to deliver a complete system design and commercial feasibility report for the concept, as well as identifying a potential site for an underground hydrogen store. The design will also include integration with gravity energy storage and inter-seasonal heat.


The parties have been awarded £299 985 in Phase 1 of the BEIS Low Carbon Hydrogen Supply 2 [HySupply 2] Competition, which aims to support innovation in the supply of hydrogen, reducing the costs of supplying hydrogen. If successful, the project could be selected to enter Phase 2, where the partners would build a £multi-million scale demonstrator in the UK. This would involve sinking a purpose-built concrete lined vertical underground shaft with a domed cap, to create a demonstration pressurised hydrogen storage vessel. Commenting on the project, Gravitricity’s hydrogen and thermal storage Lead, Sally


Molyneux said: “If green hydrogen is to become a mass market fuel of the future – for example for providing heat to industry or powering heavy vehicles – then we need to find ways to store it safely and in large quantities close to where it is needed.


“Storing hydrogen in underground shafts is intrinsically safer and less obtrusive than above ground options and is a solution that does not require unique geology such as salt caverns. We believe Gravitricity’s innovation is a scalable storage method which is cost effective, extremely durable, and can be implemented everywhere.”


www.modernpowersystems.com | June 2022 | 33


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