It generally takes five times as many coal mining and power plant workers to generate a megawatt hour of electricity as wind-farm operators, according to BW Research Partnership, an economic and workforce consultancy. As coal and nuclear power plants around the U.S. close due to competitive pressures, the number of people employed in making electricity is shrinking. Older power plants are being retired at an unprecedented pace as power producers wage a fierce fight for market share . They are being supplanted by newer power plants fired by natural gas, as well as wind and solar farms, which often are simpler to operate and require fewer workers. The Center for Energy Workforce Development, a group backed by six major utility industry groups, estimates that total direct utility employment has fallen to 505,000 from 550,000 since 2006. That is eroding a stable source of well-paying jobs, especially in rural areas, […]