I'm hoping I can help a little here, I know finding any information on Economy 10 can prove difficult.
Economy 10 was specifically designed for all electric properties with storage heaters. The meter is wired directly into the water/heating circuits. They’re designed this way so the storage heaters don’t cool down and your home and water should stay warm throughout the day.
All electricity for water/heating used during the 10 off peak hours is recorded through the stored heat register on the meter and charged at the off peak rates. Additionally, all other usage for general household appliances, lighting etc, goes through the other registers, this includes 5 hours at off peak prices between 2.30am and 7.30am.
Our current Economy 10 electricity prices for your area excluding VAT are as follows:
Daily standing charge 25.5p, normal units 13.04p and off peak units 8.28p.
The switching times are built in to the meter and don’t change if you change supplier.
As you don’t have storage heaters, I’m not certain that Economy 10 is right for you, it might be worth speaking to your supplier about changing the meter. There may be a charge for this but a single rate meter would give you a much wider choice of tariff and supplier and hopefully you’ll be better off in the long run.
If you want to have a chat with somebody here about your options, you could try our Sustainable Energy solutions team on 0345 302 4312 and they’ll be happy to help.