Where our electricity comes from
The energy we provide is a mix of predominantly imported electricity from EDF in France from low carbon nuclear and hydro sources, on-Island generation at La Collette Power Station and, since 2011, the States of Jersey-owned Energy from Waste (EfW) plant.
Until June 2012 two 90,000-Volt submarine cables supplied power from France to Jersey. The first cable, installed in 1984, came to the end of its useful life mid-2012. The second cable, commissioned in 2000, can supply up to 90MW of power from Europe.
The supply, generated by nuclear, hydro and other renewable sources, is transmitted, via La Haye du Puits and comes ashore in Jersey at Archirondel. From there, the supply is transmitted along 90,000-Volt cables via four primary substations at La Collette, Rue des Pres, Western Primary and Queen's Road.
Generation at La Collette, from a mix of diesel engines, boilers, steam and gas turbines, remains in place primarily for strategic security of supply.
The plant was called on to supplement imports again in 2012 following the demise of the first undersea supply cable. However, a ten-year, £66million project to install a third cable to France, due for completion in 2015, will restore imports to their previous levels and increase capacity to meet future demand.
In addition, since 2011, we buy power from the States-owned Energy from Waste (EfW) plant situated next to La Collette, while in return supplying water cooling and demineralisation, gas oil and access to our chimney flues.