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Startup idea: Users sell surplus Powerwall charge/charging access via a real time auction site.

Airbnb for charging.

This trading market for energy is already a reality for big consumers and is being developed for private consumers as well. Apart from that, you don't have easy control over the necessary infrastructure to facilitate such a private market.

If I had a solar array, a Powerwall, and charger, why couldn't I sell the excess charge in my Powerwall to anyone who wanted to drive over, and get a charge?

Why couldn't property owners with big power feeds offer supercharger type services to complement the existing networks?

One home isn't something worth of a network, but AirBnB aggregated them into something disruptive. The same could be done for lone charging stations.

Early days but it's starting to happen: https://octopus.energy/tesla-energy-plan-faq/

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