Business Green: The price of solar panels could fall by as much as 40 per cent by the end of the year as huge increases in polysilicon supplies lead to a sizable fall in production costs for solar panel manufacturers. That is the view of industry analyst New Energy Finance, which is predicting solar module prices could fall by between 30 and 40 per cent as a result of recent investments globally to increase production of silicon. Polysilicon prices hit a peak of $400 per kilogram last summer, …