Keuper Gas Storage


To underpin the UK’s efforts to help tackle climate change and reach net zero emissions by 2050 INOVYN is planning the UK’s largest hydrogen storage facility.

Holford Brine

Existing brine wellhead at Holford Brinefield 

Keuper Gas Storage Limited (KGSL), a wholly owned subsidiary of INOVYN, is planning to develop a new underground hydrogen storage facility and associated development at the southern end of the Holford Brinefield and surrounding area, to the north of Middlewich in Cheshire.

The plans will see the previously consented Keuper Gas Storage Project (KGSP) amended to give the option of storing hydrogen rather than natural gas.

Because of the project’s importance in helping the UK meet its increasing energy needs, the KGSP is classified as a Nationally Significant Infrastructure Project (NSIP). This means that rather than going through the local authority like most planning applications, the KGSP required a Development Consent Order (DCO) from the Secretary of State for Business, Energy and Industrial Strategy (BEIS). This was granted in March 2017.

We are now looking to amend the existing DCO to give the option of storing hydrogen rather than natural gas. If the change is approved, we will use 19 new underground cavities to store 1,300 gigawatt hours of hydrogen – more clean energy than any other facility and enough to heat more than 100,000 homes for an entire year.


Keuper Gas Storage Limited

Keuper Gas Storage Limited is a wholly owned subsidiary of INOVYN. Keuper Gas Storage Limited is the project developer. INOVYN Enterprises Limited is the land owner and its Brine & Water Business would be responsible for the solution mining of brine to facilitate this proposed development. INEOS has strong ties to the region and employs over 1,000 people in Runcorn and Northwich. The Company produces a range of essential chemicals for use by industry in the UK and overseas.

INEOS, through its subsidiary INOVYN, is already Europe’s largest existing operator of electrolysis,the critical technology which uses renewable energy to produce hydrogen for power generation, transportation, and industrial use. We are investing more than €2 billion into electrolysis projects to make zero carbon, green hydrogen across Europe. At our existing site in Runcorn, we’ve been  producing hydrogen gas for more than 100 years. We currently produce more than 10,000 tonnes of hydrogen per year in a 200MW chlor-alkali electrolysis cellroom.

Latest News

Interested in the plans and want to find out more?

We are launching consultation on the plans to amend the previously consented Keuper Gas Storage Project (KGSP) to give the option of storing hydrogen rather than natural gas.

The consultation runs until 13th November 2022.

  • Attend our online Q&A, Wednesday 2nd November, 6.30pm (register here)
  • Attend our Information Day where you can meet members of the project team and ask any questions. Byley Village Hall, Moss Lane, Byley, Cheshire, CW10 9NG, Thursday 3rd November, 3-7pm

You can view all the consultation documents on the Consultation page by clicking here.