Ministers have given the go-ahead for hydrogen blending into the existing UK gas network, according to the Institution of Gas Engineers and Managers (IGEM). The industry body reports that the change is expected to progress by 2025-26, provided it is safe, and that scaling it up will require legislative amendments1.
Blending means mixing low-carbon hydrogen with natural gas inside the existing network infrastructure. The UK Government's Hydrogen Strategy, introduced in 2021, set a target of 5GW of low-carbon hydrogen production capacity by 2030, and the British Energy Security Strategy later doubled that ambition to potentially up to 10GW by the same deadline1. IGEM frames blending as a way to start the hydrogen economy and reduce production costs, while noting that the importance of the blend may decline as the UK approaches its zero carbon goals1.
On the engineering side, National Grid Transmission's FutureGrid test facility at the DNV Spadeadam research and test facility in Cumbria has demonstrated 100% hydrogen flow in high-pressure gas transmission pipes, described by IGEM as a world first. The next phases of FutureGrid include a 1km hydrogen compression test loop and the addition of a deblending system1.
"Ministers have given the go-ahead for the blending of hydrogen into the existing UK gas network."
IGEM reports that blending has been evaluated for households on both economic benefits and safety. Industrial users connected directly to transmission-level pipelines, which have larger gas demands and more complex operations, may be affected differently by changes in gas composition, and mitigations such as deblending may be necessary at associated cost. Trials including HyDeploy have provided evidence on safety and operational implications, particularly gas meter accuracy and industrial user impacts1.
| Item | Detail as reported |
|---|---|
| Approval | Ministers have given the go-ahead for blending into the existing UK gas network1 |
| Expected progress | By 2025-26, as long as it is safe1 |
| Production targets | 5GW by 2030, doubled to potentially up to 10GW by the same deadline1 |
| Test milestone | 100% hydrogen flow in high-pressure transmission pipes at FutureGrid, Spadeadam, Cumbria1 |
| Next FutureGrid phases | 1km hydrogen compression test loop; deblending system1 |
| Barrier to scale | Legislative amendments, likely delaying commercial implementation until at least 2025-261 |
Why it matters for households
Blending changes what arrives at the meter rather than what sits behind it. A household connected to the gas distribution network would, under blending, receive a mixture of hydrogen and natural gas, so the practical questions for a home are whether existing appliances and meters cope with the changed gas composition and what proportion of hydrogen is present. IGEM reports that HyDeploy work examined gas meter accuracy among other operational effects, and that household-level impacts were assessed as part of the evaluation of blending into transmission networks1. The proportion of hydrogen in any blend, and whether it reaches a given property, are not stated in the source.
For a home's energy independence, blending does not change the fuel source from the household's point of view: the gas still arrives through the same network, and the home still depends on that network and on imports of the underlying gas. What it changes is the carbon intensity of what is burned and the amount of domestically produced low-carbon hydrogen in the mix, which IGEM links to reduced reliance on imports and to domestic energy security1. The limits are also set out: government emphasis remains on using hydrogen where direct electrification is not feasible, and IGEM notes the blend's importance may decline over time1.
What happens next
Government efforts will focus on independent safety assessments and continued stakeholder engagement, according to IGEM. The transition to blending at scale will require legislative amendments, which IGEM says will likely delay commercial implementation until at least 2025-261. The next phases of the FutureGrid programme, the 1km hydrogen compression test loop and a deblending system, are reported as forthcoming, with no dates given1.