It appears that the cost of coal is too expensive for the Kentucky Coal Mining Museum in Benham, Kentucky. The museum is switching to solar energy to save money. The switch to solar is expected to save the museum between $8,000 and $10,000 a year on its energy bill. Mr. Trump campaigned on a promise to bring coal to the forefront of America's energy policy, by eliminating environmental protections and President Barack Obama's Clean Power Plant policy. But the museum devoted to the history of coal is abandoning its namesake for a simple reason: coal's too expensive. How ironic.