No mine does not you can get a variable rate they are experimenting with it now giving customers free electricity in exchange of not using leccy between certain hours to lower grid demand. You can get a lower night rate for charging BEV but you cant have that and variable export. They are also trialling in south east I think feeding leccy from BEV in exchange of some benefits. The idea being using BEV to reduce number of power stations needed but I would not see that idea flying as who would want ones car battery being used that way and what would the car manufacturers say in event of warranty claim. Lots of stuff like building virtual grid going on out thereThat's really interesting, as that makes a massive financial difference. Does the rate you pay for importing leccy vary over the day also?