[norwaypinesavage]

"The Japanese government expects that in the next five years......the [battery] price per watt-hour will be about 50 cents.

That's about $2,000 for 40 KWh. That's a huge reduction from today's price of about $10,000.

Why did I pick 40 KWh? That's about the same energy as in a gallon of gasoline. Would you really want to spend $2,000 for a container that holds that much energy, that costs five bucks to fill up from your electrical company, when you can spend 10 bucks for a one gallon container, and fill it for less than 3 bucks?

[King Moonracer]

I wonder,does it take more energy to make the electricity or to make a gallon of gas? It definitely takes more to make the batteries than a gas can.

[Moonman62]

Why did I pick 40 KWh? That’s about the same energy as in a gallon of gasoline.

...

Is that total energy, or the energy that can be extracted and used by an internal combustion engine?