@SP_66
Beware of the tariff charges that you can see on the URL you quoted. I did some calculations which I believe were correct and if during those 4 hours 16:00-20:00 where the rate is higher you do some cooking for the evening meal then the tariff worked out quite expensive.
It is however quite difficult to compare tariffs v usage especially as they have changed the way they charge from 2 tier to standing charge plus 1 rate.
Beware of the tariff charges that you can see on the URL you quoted. I did some calculations which I believe were correct and if during those 4 hours 16:00-20:00 where the rate is higher you do some cooking for the evening meal then the tariff worked out quite expensive.
It is however quite difficult to compare tariffs v usage especially as they have changed the way they charge from 2 tier to standing charge plus 1 rate.