Councils could save tens of millions of pounds in energy costs after a survey found that more than 95 per cent still rely on the “Big Six” energy suppliers.

Of 273 councils, 92 were contracted to Npower, 45 to EDF Energy, 8 to SSE, 5 to Eon, 5 to Scottish Power and 3 to British Gas. A further 85 used other large suppliers, 9 used smaller suppliers and 21 did not [more...]