Nahant, the town where I live just north of Boston, is breezy in the summertime, which keeps the weather from getting as hot as on the mainland (Nahant is made up of two islands). The downside is in autumn and winter when that idyllic summer breeze turns into an often-relentless wind. But it turns out that the wind may become a new advantage. The Nahant alternative energy committee has approved a plan by an area startup called Deerfield Energy to replace the street lamps along the causeway to the mainland with lampposts topped with wind turbines. Since the causeway...