Professor Says Solar Panels a 'Loser'

From this article:

"I have nothing against solar PV and I hope it gets better," he said. "It's just very expensive and not terribly efficient."

Borenstein said he didn't take into account the feel-good benefit or societal value of installing a solar system on your roof. "Certainly people make these decisions for a variety of reasons," he said.

But installing better insulation would be a better bet economically, he said, although your neighbors won't know you did it.