The new estimates of shale gas resources published by IGas, one of the energy companies involved in exploration in the UK, complicate still further the decisions facing the Government on energy. Ed Davey, energy secretary, talks about moving to a point at which power supplies will be almost carbon free. But at the same time civil servants across Whitehall, including some from his own Department, have been asked to produce a paper on the competitiveness of UK energy supplies at a time when US costs are falling dramatically. That will be an interesting piece of work and should be published openly. Read more
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