Guernsey 2,453 employing businesses. 19.6% work in the finance industry and median earnings were £31,215. Public services, such as water, wastewater, the two main harbours and the airport are still owned and controlled by the States of Guernsey. The electricity, and postal services have been commercialised by the States and are now operated by companies wholly owned by the States of Guernsey. Gas is supplied by an independent private company. In 1998, Guernsey and Jersey jointly formed the Channel Islands Electricity Grid to operate and manage the submarine cables between Europe and the Channel Islands. The installation of these cables provided
German fortification of Guernsey Guernsey comprising: Commanding Officer of the German garrison, Lieutenant-General Graf von Schmettow, nephew of Gerd von Rundstedt commander of OB West (Commander-in-Chief West), ordered the writing of a 500-page book that described the fortifications in great detail, illustrated with maps, photographs and coloured drawings. A copy was destined for Hitler. The chapters from the original book have been reproduced in a set of ten paperbacks. "Festung Guernsey" (fortress Guernsey). Whether the Islands were impregnable was never tested, except for "Battery Bluecher" in Alderney. Alderney was considered too well-protected against aircraft attack so HMS Rodney was tasked with shelling it. "Rodney"