One more...

A barrel of oil has 1667 kilowatt-hours of power
My last electric bill was 555 kilowatt-hour
My entire house can run for 3 months on the energy from ONE barrel of oil. That cost me $60.
How much would the batteries cost that could run my house 24/7 for 3 months? What would be the ENERGY cost to "charge them up"? MORE than they discharged because batteries are NOT 100% efficient.

Better?