(Felicia Fonseca | AP Photo)In this Thursday, May 9, 2019 photo Ken Wagner, a journeyman lineman with Piqua Power System in Piqua, Ohio, installs an electric meter at a home in Kaibeto, Arizona, on the Navajo Nation, as his co-worker, Kevin Grinstead, looks on. An ambitious project to connect homes to the electric grid on the country's largest American Indian reservation is wrapping up. Utility crews from across the U.S. have volunteered their time over the past few weeks to hook up about 300 homes on the Navajo Nation.