If this can extend the cycles to 100,000 (from the article), this brings it the cost down dramatically. Using a conservative half of 100k: (50,000 x 5.4kWh) =

If this can extend the cycles to 100,000 (from the article), this brings it the cost down dramatically. Using a conservative half of 100k: (50,000 x 5.4kWh) = 270,000kWh $3300 / 270,000kWh = 1.2¢/kWh, more than a factor of 10!