Bishop Hill points us to this video of the Tesla Supercharging station at the Harris Ranch exit of Interstate 5 in California. He writes: “How can one resist posting a video of Tesla electric cars being recharged (so it is claimed) using a diesel generator? These people love the environment you see.”

The video shows a portable diesel generator next to the charging station and some Tesla automobiles. Watch this short video:

The video is captioned: Teslas charging off a diesel generator behind the Harris Ranch battery swap station. Filmed by Edward Niedermeyer on 5/22/2015 at Harris Ranch, CA as part of Daily Kanban’s investigation into Tesla’s battery swap program.

At first I thought maybe this was simply a backup generator for power outages, then I dug deeper. It seems the charging station is a converted car wash at the Shell gas station there. It turns out that it is…