Re: Switching off the washing machine?
"How would switching off a washing machine save electricity?"
Saving electricity is not the point, saving the fuel used to generate it (supposedly) is. Reducing demand peaks allows less excess capacity to be on standby wasting energy. Standby generators that may be less fuel efficient than base load stations.
In reality it allows less *expensive* standby capacity to be used and ultimately less to be even built. Energy suppliers are so keen because they can save a lot of money on capital expenses and a bit more on running costs. They still come out ahead even if somehow (despite their best planning) they end up selling less electricity.