A battery isn't renewable...it can be recharged several times...but after it's "life expectancy" it's done...in your golf cart, 5 years tops...in a car...10...then they MUST be replaced at ANOTHER 32X the energy cost of oil.

It's NOT practical...not in an "energy cost to manufacture" sense. A lithium battery takes 32X times the energy it will produce just in manufacture.

THEN you have to charge it which takes MORE energy than you get out...EACH time you charge it.

Your car battery IS taking power from the oil fueled engine to charge it back up after you use it to start the car. The alternator puts a drag on the engine to produce the energy needed for the battery to recharge.

That's where my "entropy" comment came from...from friction, loss due to inefficiency.

Whit a battery you start off with a 32X deficit and it only gets worse EVERY time you charge it.

"Energy" and "money" are two different things. You can buy a LOT of energy for very little money...IF you're buying fossil fuels...otherwise...you pay dearly...in up front manufacture costs.

Solar panels take a LOT of energy to make...more than they'll put out. Wind turbines are very energy intensive to manufacture.

Fossil fuels ARE the ONLY means of CHEAP energy right now and the foreseeable future.