Smart Economy 9 is a tariff for homes with electric heating and a smart meter. It gives you 9 hours of cheaper electricity to use during off-peak hours. Outside of these hours, you'll be charged the normal rate for your electricity.
We recommend you shift your energy use to the off-peak hours. The 9 off-peak hours are split across the day in 3 hour blocks, so you can make the most of the cheaper rate.
Your cheaper, off-peak hours are the same if you have a Pay As You Go (prepayment) meter or a credit meter. They might vary by up to 10 minutes, but here’s a guide:
3am - 6am
12pm-3pm
7.30pm-10.30pm
4am - 7am
1pm - 4pm
8.30pm - 11.30pm
Your smart meter’s In-Home Display will show the rate you’re being charged.