As of today the solar panels on rooftops have a rating of 15% energy conversion, sun to electricity, and it takes a system that costs roughly $5,500.00 to generate enough power to recharge the batteries every night. But new breakthru's in the last 2 years have seen almost 45% energy conversion rates. It might be possible within 3 years or so to have $2,500 solar system on your roof that will power your electric car for the rest of your life.

No electric bill or gasoline bill for your transportation needs. And 0 pollution.  (Our Porsche's will fall into the hobby expense) Now that will be a great future, addios OPEC and Exxon.