 THE chancellor has infuriated No 10 and cabinet colleagues by refusing to endorse a key component in the policy to boost renewable energy.  In an extraordinary move last week George Osborne was rebuked by David Cameron's aides for failing to come on board for a key green policy.  at a meeting on Monday the prime minister's most senior official, Jeremy Heywood, gave a dressing down to an Osborne adviser over the chancellor's failure to rubber stamp the new price that power companies will pay for renewable energy such as solar, wave and wind power.  The prices have already been approved by Cameron, Vince Cable, the business secretary, Philip Hammond, the transport secretary, and Chris Huhne, the energy secretary, and will now go out for consultation.  Danny alexander, chief secretary to the Treasury, and Nick Clegg, the deputy prime minister, also support the pricing structure.  Whitehall sources say Osborne's delay is threatening billions of pounds of investment in renewable technology. One senior government source accused Osborne of "meddling" and of angering No 10 with his tactics.  Last week Osborne used his address to the Tory party conference to declare war on environmental regulations for "piling costs on to energy bills".  His 