Last spring JinkoSolar, the world’s largest solar-panel manufacturer, announced plans to open its first US factory in Florida. JinkoSolar says it will use the $50-million plant to fulfill a four-year contract with Juno Beach-based NextEra Energy, the parent company of FPL. During the next decade, FPL will need thousands of panels as it increases its solar capacity from 1,250 megawatts to 11,000 megawatts, enough to power more than 2 million homes. JinkoSolar began pilot production at the Florida plant in November 2018. When fully operational, the plant will employ 200 people and build one million solar panels a year, the company says.