Channel Islands Electricity Grid is the joint venture company set up in 1998 between Jersey Electricity and Guernsey Electricity to manage the business opportunities presented by the submarine cable interconnectors to Europe and between the Islands. The CIEG manages the bulk electricity supply contract from Europe and seeks to improve network reliability and optimise generation by encouraging greater cooperation between the two owning companies.
There are two 90,000 Volt submarine cables that supply power from France to Jersey and on to Guernsey. The first cable was installed in 1984, is fluid filled for insulation and is capable of supplying up to 55 MW of power. The second cable uses XLPE plastic for insulation and was commissioned in 2000, it can provide the islands with up to 90 MW of power from Europe
The supply originates in France at La Haye du Puits and comes ashore in Jersey at Archirondel. From Archirondel there are two underground cables, one supply to La Collette, via a major sub-station at Rue des Pres and the other cable goes to Queens Road. The cable to Guernsey starts from Queens Road and connects into a submarine cable at Greve de Lecq.
The CIEG now supplies some 95% of Jersey’s annual electricity power requirements and meets the full island load for almost 9 months of the year. Annually, the CIEG imports nearly 1,000 GWhs from Europe, two thirds of which is used by customers in Jersey
Excluding supply and distribution the manning levels at La Collette comprise: 36
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