New Hampshire utility ratepayers will pay a Taiwanese company $1.22 million to build the state’s largest solar installation so that a small town can save about $500,000 in power costs over the life of the project. Taiwan’s Walsin Lihwa, parent company of Borrego Solar, will use Chinese-made solar panels in the 3.5-acre project, which is supposed to be finished in July. It will supply power to several municipal buildings in the area but only some of the time: the town of Peterborough (population: 6,284) gets only 197 sunny days per year. “What a great project,” deadpanned David Kreutzer, a senior...