A U.S. judge has struck down a Trump administration policy implemented last year that made it harder for wind and solar energy projects to claim federal tax subsidies. In a ruling on Saturday, Judge Colleen Kollar-Kotelly of the U.S. District Court for the District of Columbia said the Treasury Department’s IRS had failed to give an adequate reason for eliminating a longstanding definition for what it means for a project to be considered under construction. Under federal law, renewable energy projects must begin construction by July 4 of this year or enter service by the end of 2027 to qualify for a 30 percent tax credit....