The AP reports that some Arizona schools are getting solar energy systems.

The article says that "The systems are expected to lower utility bills and teach students about renewable energy." Lower utility bills by how much? " The $30,000 systems installed and maintained by Tucson Electric Power are expected to save the school about $60 a month in electricity costs."

Let's see ... saving $60/mth means it takes 500 months for the $30,000 system to break even. That's 41.7 years. Apparently the school system doesnt care to teach its students about ECONOMICS. And what precisely does this system teach students about renewable energy? Hmm... maybe that the technology isn't mature enough yet to make any kind of reasonable and practical difference to Arizona much less the rest of the US?