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Enbridge reports Therm H2 hydrogen‑blend pilot showed safety at 5% blend in Delta pilot
Summary
Enbridge summarized the Therm H2 pilot: phase‑1 residential tests and a phase‑2 Delta electrolyzer trial confirmed operational experience and found no safety or appliance performance issues for up to 5% hydrogen blends in the tested distribution segments.
DELTA, UTAH — Enbridge Gas Utah presented results of its Therm H2 hydrogen‑blending pilot, reporting completion of phase‑1 residential appliance testing and phase‑2 electrolyzer operation in Delta and asserting that 5% hydrogen blends performed without detectable appliance or leak‑survey concerns in the tested network segments.
Alyssa Whelan, Enbridge Gas Utah, described phase‑1 tests at a company training village and phase‑2 field work in Delta, which included placing an electrolyzer on site and producing hydrogen on demand to blend up to 5% with natural gas. Whelan said the project performed operational tasks without storing hydrogen on site and that safety and appliance testing “tested very nicely.”
The nut graf: The pilot’s goal was operational experience and confirmation that distribution systems and common appliances can operate safely with small hydrogen blends; Enbridge said the Delta tests met those project goals and that no additional phases were scheduled at the time of the conference.
Whelan summarized broader test activity: leak surveys before and after blending, appliance testing at a local high school and district facilities, and material/quality sampling across the dead‑end test system to confirm blend consistency. She said “our tests confirmed that hydrogen blends up to 5% … are safe within the IHP distribution system” and that appliances tested in the high school showed “no detectable difference.”
Questions from conference participants covered leak‑survey sensitivity and whether hydrogen leakage would materially differ from natural gas leaks. Whelan said industry research and the pilot’s results indicate hydrogen does not leak at a higher rate from gas‑tight infrastructure; the presentation team stressed that the pilot was limited in scale and targeted specific system configurations.
Ending: Enbridge flagged that the company will continue to watch industry developments and that its Canadian parent company remains active in hydrogen research, but no immediate expansion to additional pilot phases was committed at the conference.
