Thursday January 21, 2021, 12:01 AM A gas ring Credit: PA Wire/PA Images Some of the UK’s biggest gas networks have set out a plan which they hope will carve out a space for them in an emissions-neutral future. The companies said they want to be ready by 2023 to make sure up to one fifth of gas pumped into UK homes is hydrogen, which releases only water vapour when it burns. The plan also includes an ambition to help the UK meet its production target for one gigawatt of hydrogen by 2025, and five gigawatts by 2030. The Hydrogen Network Plan, which is part of the Energy Networks Association’s Gas Goes Green programme, sets out the plans of the UK’s biggest gas network companies.