dushanbe wrote: ↑Mon Feb 21, 2022 9:12 am
A few reasons. Firstly, the overall plan is to be able to introduce dynamic charging. So when enough people have 'smart' meters the suppliers can go,
'Oh we've noticed you seem to use more electricity between 4pm and 10pm so we'll have to charge a premium for that. On the plus side, we've noticed you use hardly anything between midnight and 6am, so we will reduce the unit cost for those hours.'
The other issue I've got is a bit technical, but essentially they will be able to start charging for some of the generation and supply overheads that they can't do with normal dumb meters. The supply industry has had a bee in its bonnet forever about this as it costs them millions that they can't easily pass onto domestic consumers. Once they've got the ability to meter it, unit costs will rise again.
Hi dushanbe, smart meters will facilitate more granular pricing. The wholesale electricity has always bought and sold on 30 minute charging periods, so 48 half hours per day. These are then aggregated into 4 hour periods and 2 x 12 hour periods, peak and off-peak. Pricing is driven by supply and demand. Peak prices, Monday to Friday operate from 07:00 to 19:00. They align with the working day, when more offices, more shops and more manufacturing sites are operating. Within the 12 hour peak, the first 4 hours, 07:00 to 11:00 and the last 4 hours, 15:00 to 19:00 align with residential demand being higher as families start their day, including children getting up and going to school and, later, children and workers returning from school and work. Every football fan should also be familiar with the surge in electricity demand at half-time in the FA cup final (and other big games) when we all take a pause from the screen and switch our kettles on for a cup of tea.
As the country adds more wind turbines and, when the wind is right, not too little and not too much (turbines must be switched off when the wind speeds are too high), we will see more periods when wholesale electricity prices fall. Smart meters enable EV owners to charge overnight for free. Smart meters will also enable EV owners to sell electricity back to the grid when there is a surge in demand and their car is parked at home.
Dynamic pricing will also facilitate choosing when to use the washing machine or dishwasher. Shifting demand from high demand periods to low demand periods will be good for everyone.
Generation and supply overheads are all included in the prices we pay today. The wires and pipes still need to exist whether we use elec and gas once a day or all the time throughout the day and night. Similarly, we pay today for the generators to be on standby in case they are needed, perhaps when the wind isn't blowing to turn the turbines.
BTW: no one will ever see individual electricity pricing. You will never get a letter from your energy supplier saying "Oh we've noticed you seem to use more electricity between 4pm and 10pm so we'll have to charge a premium for that."
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