Quote:
Originally Posted by Chance
...snip...
Cost of lithium batteries need to drop a little more also at retail. At $300 per kWh it will be very affordable to have 10 kWh of battery, enough to run a bedroom air conditioner all night.
...snip...
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As of Dec 2017 they are at
$209 per kwh.
Or, perhaps, they are
down to $139!