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Centrica plans first hydrogen into UK gas-fired power plant
2/11/2022
News
Centrica Business Solutions is set to start injecting hydrogen into its existing gas peaking plant at Brigg, Lincolnshire, as part of a UK first trial with HiiROC, aimed at better understanding the role of hydrogen in power production.
The 12-month trial will be part funded by a grant from the Net Zero Technology Centre (NZTC), which has given 20 projects a total of £8mn through its Open Innovation Programme. Each is aimed at developing technology which could reduce emissions offshore, accelerate clean energy production and enable the delivery of the UK’s net zero ambitions.
The 49 MW gas-fired plant at Brigg is designed to meet demand during peak times or when generation from renewables is low, typically operating for less than three hours a day. Mixing hydrogen in with natural gas will reduce the overall carbon intensity.
It is anticipated that during the trial, which is expected to get underway in 3Q2023, no more than 3% of the gas mix could be hydrogen, increasing to 20% incrementally after the project. Longer term, the vision is to move towards 100% hydrogen and to deploy similar technology across all gas-fired peaking plant in the UK. It is the first time that hydrogen will be used within a grid connected gas-fired power plant in the country.
HiiROC’s proprietary technology converts biomethane, flare gas or natural gas into clean hydrogen and carbon black, through an innovative thermal plasma electrolysis process. This results in a low carbon, or potentially negative carbon, ‘emerald hydrogen’, explain the project partners.
Because the byproduct comes in the form of a solid, pure carbon it can be easily captured and used in applications ranging from tyres, rubbers and toners, and in new use cases like building materials and even as a soil enhancer.
Greg McKenna, Managing Director of Centrica Business Solutions, comments: ‘Gas still plays a huge role in maintaining a secure, stable supply of power in the UK, with around 40% of our power coming from natural gas. So, it’s vital that we find ways to reduce the carbon intensity of gas plants like that at Brigg.’
Tim Davies, HiiROC’s CEO, adds: ‘This exciting project with Centrica and the NZTC at the Brigg facility will be a first step on the journey to enable the decarbonisation of gas peaking plants. With the continued and crucial rollout of renewable energy generation, intermittency of power supply is a key issue, and the programme we are developing with Centrica will explore routes to address intermittency without generating CO2 emissions.’
