SGN to move onto next phase of hydrogen supply trial
Ofgem has given gas distributor SGN approval to move onto the next stage of a project to trial hydrogen gas through a decommissioned pipeline in Scotland.
Launched in April 2022, SGN’s £30m LTS Futures project is a three-year effort to verify the compatibility of the UK’s local transmission system (LTS) with hydrogen gas. The company has been carrying out tests on the suitability of a decommissioned pipeline for a live hydrogen repurposing trial.
Over the past year, SGN engineers and researchers have carried out surveys and assessments to determine the integrity of the 30km long pipeline that runs from Grangemouth refinery to Granton, near Edinburgh.
The tests included pushing a Pipeline Inspection Gauge (PIG) through the pipeline using compressed air to clean it and identify any critical defects.
A hydrotest was also conducted, filling the entire pipeline with water exceeding the pressure the pipeline will be exposed to during the live trial. The team has also inspected the condition of the pipeline above ground, below ground and at river crossings.
SGN submitted evidence gathered from the testing to Ofgem, which has confirmed the suitability of the pipeline for hydrogen testing.
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