This is a guy who took Wall Street by storm. His car company, Tesla (TSLA), has been a market darling. In October of 2012, you could have bought a share of Tesla stock for about $28. That share will cost you over $200 today.

Tesla has a market cap of nearly $28 billion despite never having had a year with positive earnings. EPS for the trailing 12 months is ($2.36). For comparison purposes, Tesla's market cap is only a little less than half that of General Motors, which had net income of $2.8 billion last year.

Such is the genius of Elon Musk that he's convinced investors he has a product whose sales will grow, essentially, to the moon.

Thus when we came across a story headlined Why Tesla's Battery for Your Home Should Terrify Utilities, we had to take a look.

Seems that during a mostly disappointing Tesla earnings call last week, Musk casually dropped the news that his company is working on a full-house battery that could help you break up with your expensive utility company and propel you into off-grid self-sufficiency. You can listen to the call if you're curious.