A company called Powertree Services, starting out in San Francisco (surprise, surprise), has a plan in place with 100 apartment buildings that beats anything else I’ve seen in this market. It is going to rent some parking spaces in the buildings’ parking facilities, as well as their roofs, and then install EV chargers and solar panels there. Powertree Services is connecting these technologies with Panasonic lithium-ion batteries (like the ones used in Tesla’s cars). Apartment dwellers who pay a flat monthly fee can then charge up their electric cars (which they will presumably now buy). Furthermore, if they are out on the town and need to charge up, they can utilize one of Powertree Services’ other EV charging spots — providing them with both a charge and a parking space!