The Anonymous Widower

National Gas To Trial Gravitricity’s H2 Storage Solution

The title of this post, is the same as that of this article on The Engineer.

This is the sub-heading.

Gravitricity’s H2FlexiStore system for underground hydrogen storage could see a pilot built in 2025 after National Gas secured Ofgem funding to explore the technology.

There is then a graphic, which gives a good visual explanation.

The patented system uses lined geological shafts to store up to 100 tonnes of pressurised hydrogen at 220 bar, equivalent to about 3.33GWh of energy. Unlike natural storage such as salt caverns and disused gas fields, the shafts can be sited anywhere. Gravitricity has previously stated its preference for co-locating the storage near to renewable generation and potential major consumers of hydrogen such as heavy industry.

I can see that this simple system can have a lot of diverse uses.

In Centrica Completes Work On 20MW Hydrogen-Ready Peaker In Redditch, I talked about how Centrica had refurbished a decommissioned peaker plant.

One of these stores would keep a 20 MW peaker plant running for a week.

It would also work well with a HiiROC hydrogen system.

March 12, 2024 - Posted by AnonW | Energy Storage, Hydrogen | Centrica, Gravitricity, HiiROC, Hydrogen Peaker Plant, National Gas