Actually, none of the above is actually really necessary. My back of the envelope calculations has charging up at Superchargers with a Telsa costs roughly twice as much as it costs me, retail (plus or minus the solar panels on the roof). So, why 2x the cost for electricity?Random idea re: Opening up the supercharger network.
Make it public that Tesla is overcharging non teslas for the power. All the excess income goes into a ringfenced fund, and that cash is automatically allocated to discount the price for teslas. Could even be done on a state by state or even location by location basis.
That way any tesla owner sat waiting for a nissan leaf to charge can be comfortable in the knowledge that his next charge is getting part-subsidized by the leaf owner.
- Cost of electricity (but buying in bulk gets one lower costs..)
- Cost of maintenance on the Superchargers (they do break)
- Cost of putting more Superchargers across the landscape.
With more users more money can be socked into the third bullet item, expanding the network faster; and we're back to faster exponential growth in the beginning of the S-curve. Better for us and a disaster for the greedheads.
Besides.. Making those adapters generally available and, possibly, over time outfitting even Teslas with CCS will provide a political path to allow more SC's to show up on semi-public property at rest stops without getting complaints from politicians about putting a proprietary charging station on State Land.
A little funning around with costs (in a minor way) to push non-Tesla BEVs that can't charge at 250 kW to clean up their act doesn't change the basic equation of above, but does provides additional pressure on non-Tesla BEV manufacturers to clean up their act and get with the program.