The nation’s capital will get half of its electricity from renewable sources by 2032, officials announced Monday. The new, 50 percent renewable portfolio standard will require the District’s utilities to increase electricity from sources such as wind and solar from the current goal of 20 percent by 2020 to 50 percent by 2032, getting at least 5 percent from solar. In addition, under a jobs and installation program, more than 100,000 low-income D.C. households will…