Gas customers in Jersey and Guernsey will see their tariffs increase from 1 December 2026, with both Island Energy and Guernsey Energy confirming price rises of 1p per kilowatt hour (kWh).
The increases will apply to mains gas, mini bulk tank and cylinder tariffs for domestic and commercial customers across both islands. The rise represents approximately 5% of the standard domestic central heating tariff.
Both companies say the increases reflect sustained rises in wholesale gas and liquefied petroleum gas (LPG) costs, alongside the expense of transporting and handling imported fuel.
Global supply pressures, competition for available cargoes and disruption to Middle Eastern exports and shipping routes have contributed to higher costs. LPG prices have also been affected by seasonal demand, changing European supply flows and increased freight costs.
Island Energy and Guernsey Energy purchase a proportion of their anticipated gas requirements in advance to reduce their exposure to short-term price fluctuations.
The companies say this approach has helped limit the impact of rising wholesale costs on customers, but sustained increases in supply costs mean existing tariffs no longer reflect the cost of providing gas to the islands.
Graeme Millar, Chief Executive Officer of Island Energy and Guernsey Energy, said: “We will continue to monitor wholesale markets closely, manage our purchasing carefully and keep tariffs under review. If you are worried about paying your bill, please contact our customer team as early as possible so we can discuss the support available.”
