From the article(s):
- "... Musk tweeted to Cannon-Brookes that an installation would cost “$250/kWh ..."
- "... The average price people in the U.S. pay for electricity is about 12 cents per kilowatt-hour..."
- "... bidding process to have access to an A$150 million ($115 million) renewable energy fund ..."
- "... South Australia has not revealed what it's paying to Tesla in total ..."
No carbon footprint costs given for generation of batteries.
https://arstechnica.com/cars/2017/12...battery-array/