Guardian: BP is to axe 620 jobs from its solar power business – more than a quarter of that workforce – in a move it said was part of the long-term strategy to "reduce the cost of solar power to that of conventional electricity." Two cell manufacture and module assembly plants near Madrid, will be shut with the loss of 480 posts while module assembly will also be phased out at its Frederick facility in Maryland, US, with a further 140 redundancies. BP blamed the cutbacks on the credit …