Silver-Fox
LIFE MEMBER
The standing charge covers amongst other things the running of the networks (not the generation side of things). There's a whole lot more to it than the bit of pipe running to your house. The gas has to be filtered, pressurised and pumped through a countrywide network, there's a whole raft of gas transfer stations across the country which all need regular maintenance, Leaks need fixing and pipes need replacing. Similar thing with the Electricity transmission towers, Cables, transmission and distribution sub-stations (inc transformers, Switchgear) all need maintaining and improving as demand increases. Trust me a 400kV supergrid transformer isn't cheap and you can't buy one off the shelf.
I have to service my van and buy new kit.
That comes from the money I charge not an extra charge on top of my wage.