Reuters: The economic viability of some 53 percent or 39 of the power plants planned for construction in Europe's largest economy by 2025 has been called into question, German energy industry association BDEW said in a statement on Monday. The association said investors were nervous because of lacking profitability for coal- and gas-fired power stations because of competing energy supplies from subsidised renewable power, and a tougher carbon emissions regime. A year ago, the BDEW had called into question...