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Heating Advice

Our Superheat tariff is available 24 hours a day and must be used in conjunction with another of GEL’s tariff suitable for lighting and power.

What is the best tariff for me?

Guernsey Electricity offers a wide variety of electricity tariffs. Each tariff has a specific use whether it is for light and power, electric heating, heat pumps, etc. All our tariffs and their rates can be found here.

A number of tariffs include a standing charge per quarter for having the meter and then a unit cost for every unit used. Every customer will have either the standard tariff or the Economy 12 tariff for their everyday use.

If you are on the Economy 12 tariff, make sure you check the times of the day when your low rate is available and make the most of it. If you are not sure when your low rate times are, call us on 01481 200700.

Additional Load

If you are thinking of installing a new electric heating system then you must complete an Additional Load form, which can be found here. It is important that customers complete this form to ensure that the island’s electricity infrastructure in your area is suitable for your requirements.


Electric heating and hot water cylinders work more economically when being properly controlled. Thermostats and programmers stop the devices using electricity unnecessarily and can assist in the use of electricity low rate times, which helps to reduce running costs.

NEST Thermostat guide

DEVI Touch guide

DEVI Reg550 guide

Heatmiser Thermostat guides

Aube TH132 guide

Grasslin Pin Clock guide

Grasslin QEQ1 Time Clock guide

Horstmann guide

Warmup 3IE Thermostat guide


To discuss home or commercial heating options with one of our experienced energy advisers, or to arrange a FREE site survey please call 01481 200749 or email


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