Which tariff will my electric heating use?

Question

Accepted Answer

Electric boilers, radiators and underfloor heating - Superheat 24 hour tariff.

This tariff was designed exclusively for electric heating and runs at a low-rate 24 hours a day.

Electric heating appliances connected to Superheat must be wired on a separate circuit and connected to a separate distribution board.

Storage heaters - Super Economy 12 tariff.

This refers to 12 hours out of 24 when you can run your heating using low-rate electricity. This is made up of 2 hours during the day and 10 hours at night. Storage heaters work by storing heat generated using low-rate electricity overnight and releasing that heat during the day.

Water heating and towel rails - these are usually on a Super Economy 12 tariff.

It’s essential that you use a timer to ensure you’re only heating hot water during your low-rate Super Economy 12 times.

The best time to heat water is between 11pm and 5am as this takes advantage of both low-rate electricity and uses 100% renewable energy. At night we do not use as much electricity meaning the power station is not required to top up our imported electricity to meet customer demand.

Air source heat pumps - Heat pump tariff.

This is available for a permanently connected heat pump system and all elements of the system including pumps and controls will use this same tariff.

Air source heat pumps using the heat pump tariff must be wired on a separate circuit and connected to a separate distribution board/consumer unit.

How can we help you?