Overcapacity is the biggest issue facing the global solar manufacturing industry, and nowhere is the issue more apparent — and the losses deeper — than in China and Taiwan. Together these countries account for over 70 percent of solar cell manufacturing. GTM Research estimates that China alone has the capacity to manufacture 59 GW of solar modules — dwarfing even rosiest demand forecasts for 2012, which is around 30 GW. Taiwanese makers add another 8 GW of manufacturing capacity to this equation. The U.S. Department of Commerce antidumping tariffs intend to impact this condition by pricing Chinese solar cells out of the market, and sideline a significant chunk of the global solar cell supply to create a more competitive and sustainable industry.