Where our electricity comes from

Our subsea cable is Guernsey's primary source of electricity and has delivered a 37.5% decrease in Guernsey's emissions from 1990 levels. But we still have some way to go before Guernsey is net zero.
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Over 90%
of Guernsey's electricity is imported using a sub-sea cable to Europe via Jersey.
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60MW
This cable can provide 60 Megawatts of electricity which covers all of Guernsey's electricity in the summer but a top-up is required in colder months.
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94.2MW
is our highest ever peak demand reached in January 2024. We need to be able to provide this at all times.
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37.5%
decrease in Guernsey's emissions from 1990 levels since the cable was installed in 2000.
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100%
of our electricity can be generated from our power station. This means currently our power station gives our background security of supply as it can provide all of the island's electricity if needed.
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607kWp
of local community scale solar PV has been installed by us since 2019
Our imported electricity is sourced from renewable and low carbon sources such as solar, wind and hydroelectricity.
‘Guarantee of Origin’ certificates (GoO’s) are the current market mechanism for driving investment in renewables. We are using our market power to drive investment to the right places. By increasing the demand for renewable and sustainable electricity, we reduce the investment into fossil fuels. The more communities that make this same choice, creating more demand for energy from sustainable energy sources, the more generators will invest in these technologies.

Guernsey currently uses between 30MW (megawatts) and 90MW of electricity throughout each day. We expect this to increase in the future so we need to ensure that we can always keep the lights and WiFi on, and our homes warm.

We believe that everyone in Guernsey should be able to use and benefit from renewable electricity. Guernsey Electricity has installed some of the largest solar arrays installed in the Channel Islands which feed over 600kWp of renewable electricity into the grid for everyone to use.
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31 January 2025
Monthly Meets - Meet Mat
This month we get a glimpse into what it's like planning for Guernsey's tomorrow. Meet Business Strategy Lead, Mat Desforges. -
14 January 2025
SMALL SWITCHES FOR BIG IMPACT - Easy New Year’s resolutions you can actually keep
Want to save money and protect the environment? The good news is that we can help you out with some easy switches to achieve both – all without disrupting your lifestyle. -
6 January 2025
What’s the problem with our hot water?
Many of us rely on the power station to heat our water, and the carbon impact of tens of thousands of households heating water at the same time during peak hours is considerable. But there could be an easy solution for many.