Despite hydrogen having only been identified as a key part of the global transition to net zero greenhouse gas emissions over the last number of years, our team has a market leading understanding of the hydrogen sector built upon expertise gained from decades advising clients on onshore and offshore energy and more recently, representing a number of the largest and most exciting hydrogen companies in the UK and EU.

Successfully undertaking any hydrogen project requires a diverse range of legal disciplines. Our energy team combines comprehensive know-how in all relevant legal areas with profound, real-world industry knowledge. We deliver practical, commercial legal advice for every aspect of your business whether you are a small technology start-up or a global player.
  • Profile
  • Experience
  • Key contacts

We have a multi-disciplinary team of experts who have experience of working with energy companies who are already heavily involved in the hydrogen sector and those who are transitioning to hydrogen. Our clients include service companies, contractors, insurers, funders, banks, clean tech start-ups, SMEs and developers.

Our decades of onshore and offshore energy experience combined with dealing with specialist hydrogen clientele enables us to provide market leading advice to clients involved in or considering becoming involved in hydrogen.

Our practice has already advised on the following hydrogen projects and transactions:

  • Corporate and project financing 
  • Acquisitions 
  • EPC contracts
  • Mass storage and transportation solutions 
  • Dispute resolution
  • Transition projects 
  • Pre-feasibility studies and agreements  
  • Power purchase agreements
  • Full feasibility studies and agreements
  • Equipment and asset leasing arrangements

In addition, the practice advises in relation to certain highly specialised areas that few international energy practices can replicate such as offshore contracting matters and maritime. These specialist areas complement our hydrogen expertise to enable us to provide a full range of legal advice to those operating in the offshore hydrogen sector. 

Clients include Sizewell C, Corre Energy, Highview Power and Protium Green Solutions Ltd.

Protium Green Solutions

Advising Protium Green Solutions on a 20MW green hydrogen production and fuel supply project in Wales. The circa £110 million project involves the construction and operation of the first large-scale hydrogen generation system at a brewery. The hydrogen will fuel the brewery’s production, as well as its key logistics assets including Heavy Goods Vehicles (HGVs) and forklift trucks.

Jericho Energy Ventures

Advised lead investor in its equity investment in Supercritical Solutions. Supercritical is a hydrogen technology company which enables the production of the lowest cost of hydrogen using renewables.

European energy storage and hydrogen developer

Advised a Northern European energy storage developer who uses hydrogen-fuelled compressed air energy storage in connection with its multi-jurisdictional corporate restructure and acceptance of its first private investment into the new group.

UK hydrogen developer

Advising a large UK hydrogen developer on its collaboration agreements for undertaking pre and full feasibility studies to produce and utilise hydrogen.

European hydrogen producer

Advising a European hydrogen producer on the policy and commercial considerations when negotiating commercial agreements with third-parties in relation to several mobility applications.

Major energy provider 

Advising a major energy provider on producing low-carbon hydrogen from nuclear power.

Arcola Energy

Advised the sellers of Arcola Energy, a systems engineering company, on the company's acquisition by Canadian listed company Ballard Power Systems. Ballard acquired 100% of Arcola for total upfront and earn-out cash and share consideration of up to US$40 million, based on the achievement of certain performance milestones.

Höegh Autoliners

Advised Norwegian RoRo shipping company on the shipbuilding contract for four fixed and eight optional multi-fuel and zero-carbon ready Aurora-class vessels.


Cathal Leigh-Doyle Managing associate

T:  +44 20 7809 2658
M:  +44 7540 155 833 Email Cathal | Vcard Office:  London

Latest news & insights

07 Jul 2022

From Insights

How can we actually meet our hydrogen targets by 2030 and 2050? seminar

Thursday 7 July 2022 - 17:30 at Stephenson Harwood's London offices


13 Jun 2022

From News

Stephenson Harwood advises Protium Green Solutions on UK record hydrogen fundraising round

Law firm Stephenson Harwood LLP has advised Protium Green Solutions (Protium) on its recent £40.5 million fundraising, the largest funding round that has been secured ..


04 May 2022

From Insights

Hydrogen quarterly insight - April 2022

Welcome to Stephenson Harwood's fourth hydrogen quarterly insight which is aimed at bringing you up to speed on all new legal updates in the UK hydrogen sector and som..


29 Apr 2022

From Insights

Hearing from the experts – 5 reasons why hydrogen and battery-powered energy are driving a sustainable future

Stephenson Harwood's latest panel discussion about batteries and hydrogen (recording here) agreed that although discussions surrounding decarbonisation has tended to f..


21 Jan 2022

From News

Stephenson Harwood advises Jericho Energy Ventures on hydrogen deal

Law firm Stephenson Harwood LLP has advised Jericho Energy Ventures, as lead investor, on its equity investment into Supercritical Solutions.


20 Dec 2021

From Insights

Hydrogen quarterly insight - December 2021

This is Stephenson Harwood's third hydrogen quarterly insight which is aimed at providing you with legal updates relevant to the industry and bring you up to speed on ..


19 Nov 2021

From Insights

Hydrogen projects: regulation and consents

Status of the hydrogen regulatory regime


17 Nov 2021

From News

Stephenson Harwood advises on the sale of Arcola Energy to Ballard Power Systems

Law firm Stephenson Harwood LLP has advised the sellers of Arcola Energy, a systems engineering company, on the company's acquisition by Canadian listed company Ballar..


21 Sep 2021

From Insights

The Hydrogen Regulation Highway – pointing in the right direction but nothing is moving for a while yet!

On 17 August 2021, the UK Government's long awaited Hydrogen Strategy was released for public digestion and assessment.


09 Sep 2021

From Insights

The roadmap for hydrogen in the UK is now clear – next up is the detail!

On 17 August 2021, the UK Government published its long-awaited Hydrogen Strategy.


03 Aug 2021

From Insights

Hydrogen quarterly insight - August 2021

This is Stephenson Harwood's second hydrogen quarterly insight which is aimed at providing you with legal updates relevant to the industry and bring you up to speed on..


17 May 2021

From Insights

Regulation & Licence Highway - Key milestones in UK hydrogen projects

Everyone involved in the design and implementation of hydrogen projects is eagerly awaiting the UK Government's Hydrogen Strategy, revealed in the 2020 Energy White Pa..


05 Mar 2021

From Insights

Hydrogen quarterly insight - March 2021

In addition to Stephenson Harwood's hydrogen seminar series, Stephenson Harwood will publish a hydrogen quarterly insight which will provide you with legal updates rel..


10 Dec 2020

From Insights

What are the top 5 points raised by leading UK hydrogen developers?

With everyone talking about hydrogen, Stephenson Harwood lists the top 5 takeaways after discussing hydrogen projects with three market leading UK hydrogen developers.


26 Nov 2020

From Insights

Hydrogen projects – from the developers’ perspective

Following on from our first seminar ‘Why is everyone talking about hydrogen’, we hope you will be able to join us for our second hydrogen seminar where we will be disc..


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