<MSNBC Space news
"Criswell’s plan involves setting up solar panels at numerous new lunar installations to collect the sun’s rays. This energy could then be converted into a microwave beam and sent back to “rectennas” on Earth, where it would be easily converted into electricity that could be plugged into the power grid.
.....
Criswell estimates that it would cost about $9 billion to get a small working prototype of his lunar power plant up and running on the moon. Once it has proven that it works, a further investment of about $50 billion could build the entire system — and break even in about five years.
“It’s really a very cost-effective proposal,” he said.
Extraterrestrial power production is not necessarily a new idea. Power-producing solar satellites were first suggested in the 1960s and have been periodically reviewed."

This, of course, is simply silly. He wants to sell power on Earth at less than 10 cents a kilowatt hour. If this professor could fiqure out how to bring the cost of a kilowatt *DOWN* to 100 cents per kw/h and could sell enough quantity- say 60 billion dollars worth. I or anyone with a couple of brain cells functioning could find him customers who wants this power on the lunar surface- thereby paying him more (at least 10 times) than he could hope for from Earth customers, plus he doesn't have to ship the power 1/4 of a million miles, and fight off the various environmental groups which will undoubtively attack this idea.

[60 billion KW/h converts about 6 million tons of water- 1/1000th of total estimated quantity of water at both lunar poles- into rocket fuel]