[blkhawk]

I think that parking spaces will eventually come with slow charging systems - combined with better "standby" power draw from electric cars everybody might suddenly get away with just plugging in the car every time they park. Maybe they could be even made "free" or very cheap in the sense that you mostly pay for it by wear and tear on your battery (it would only charge to 70% guaranteed and everything above it could be used by the system at any time while its plugged in).

A system like that would be something that probably needed to be implemented at a level that works in several countries.

eventually such a setup could be a large component of the buffer renewables need together with storage in houses and at the municipal level.

[reacharavindh]

One thing at a time... Even requiring the power utility companies to install a standard slow charger at most road side parking spots would go a long way to encourage adoption of electric cars in the cities(where it makes the most sense already for short commutes). This is simply an additional avenue for the power companies to sell electricity to consumers. Why wouldnt they jump on the business opportunity?! The regulatory hurdle and safety of design needs to be moved first, and then the market can take over.

I dont think using electric car batteries as a distributed grid storage is ever going to fly though. Every consumer will worry about the battery cycle degradation and not sign up for such a thing.

At the scale at which storage is needed in the grid, it would make sense to make huge energy storage facilities with cheaper/lower density energy storage solutions like redox batteries, compressed air energy storage or closed loop compressed liquid solution etc supplemented by a buffer of LFP banks to get through the variations in energy supply by day/night or even through a week.

Seasonal variation is a bit of a harder problem though. What do we do when the winds dont blow and the sun doesnt shine for more than 10 days at a time?! We need to build out _modern_ CNG power plants that can be utrned on at high capacities ONLY at such times, while they idle out the rest of the times abd not pollute unnecessarily.

I believe this is a technically solvable problem. However, we need political will to not look at the short term and think for the long term good to back such efforts and see it through.