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A Minnesota utility is testing a 5% hydrogen blend in the natural gas it's sending to customers for heating and cooking. The hydrogen isn't quite "green," but the test is going well so far:

canarymedia.com

This utility is blending hydrogen into fossil gas. Can it scale?

Some households in Minnesota have been using a gas blend with 5% hydrogen to cook and heat their homes. Results have been positive so far.

9:12 PM · Feb 2, 2023

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Replying to

New NREL study: blending hydrogen with NG could double leakage rates.

hydrogeninsight.com

Evidence does not support view that existing gas network can safely handle blend of hydrogen and...

Department of Energy-backed scientists identify ‘large knowledge gaps’ relating to blending H2 into the gas grid

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Replying to

Cool article. Thanks. Some questions. Have they measured an NOx reduction in homes? What's the leak rate? With an energy conversion rate of about 30% for green hydrogen production, wouldn't it be much more efficient to use the energy for electrolysis to heat/cook directly?

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