Editorial: Salt Lake County’s solar power initiative is a ray of sunshine in a dark, gloomy and rapidly warming world. There’s nothing unique about the technology. But the funding mechanism merits more than a mention. If all goes according to plan, the roofs of 50 county-owned buildings will soon be covered with arrays of solar panels producing clean, renewable electricity, and they won’t cost taxpayers a dime. Private firms will install the panels, utilizing state and federal tax credits …