Oilpan4 said:
Right now if tesla made the batteries it would cost about $110,000 per mega watt hour according to the 85 kwh price tesla published to replace that battery.
You may as well be quoting the cost of Ben & Jerry's Vanilla ice cream per pint in Manhattan when the question is cost of ice per ton in Norway. Read the IRPs of the main electric utilities of NM. Or read the most recent auctions that Xcel has reported to its PUC of clean energy + storage.
However, $110,000 per MWh is dirt cheap. I doubt if that is the Tesla price. Your calc after that is nonsensical. Utility scale storage in conjunction with clean energy is usually designed as a 4 hour per day back-up and a 10 year operation guarantee. The ~ correct arithmetic would be back-up of 365*24*10** kWh for $440, about 0.5 cents per kWh. You may notice that is ~ the same additional charge that long distance sharing will cost per kWh.
In short -- get a clue
**
365 days in a year
24 hours in a day
10 year performance warranty