I happen to live in a town that has its own municipal power company (no generation, just owns the town grid) that is very progressive in promoting solar, EVs, etc. I've had the pleasure of interacting with them on several things but one thing that came up recently was grid and load planning for the town. They desire to see representative usage stats for this purpose and I've shared such data informally. Anyway, if I think things through, having access capabilities like the Tesla API could enable such data collection automatically. I should also add that my municipality is very proactive in communicating "peak demand periods" to the community and requesting everyone to lower their usage during certain periods of time. Doing so effectively may lower future electrical rates for the community. This being said, in this case it could be advantageous for the municipality to defer charging for the community until after the peak demand period is passed (3-4 times per year), typically after 8PM. Anyway, there are obvious privacy and control concerns here but I thought I'd mention it to the community since IMO there's potential to use vehicle management methods to enable effective grid planning, mitigate the impact of power emergencies, etc.