Electricity production and consumption data from the provinces has been overstated say experts making the decline in economic growth in China look less severe than it really is. Coal stockpiles at one key storage location in Qinhuangdao port reached 9.5 million tons in June, says an analyst for Wood Mackenzie, global energy consulting firm, a level not seen since the level of 9.3 million tons in November 2008 during the height of the 2008 financial crisis.