The title of the article is unclear, they mostly talk about increasing the mix of hydrogen with methane on the natural gas grid. This requires new ways of produ

The title of the article is unclear, they mostly talk about increasing the mix of hydrogen with methane on the natural gas grid. This requires new ways of production but is re-entering the existing gas infrastructure for transport. Most boilers and gas hobs are fine up to 10% hydrogen instead of 100% methane. It's a good way to reduce the carbon footprint of heating by 10% (edit: after reading the message from aurelwu, this doesn't make sense, it won't reduce by 10, but by less than that), assuming the hydrogen has been produced in a reasonable way (excess solar and wind for instance).