It is in Sweden, Finland, California, Italy and now Germany. (Although in a different form, called HVO, which is Diesel from garbage (even plastic) and needs roughly 1,5 kWh per Liter)
The “waste” is irrelevant, if it’s made from power that could not have been used anyway, because it was made in a remote part of the world. We’re still a long, long way away from a global power grid. That power would have to be converted anyway - and we do have all the infrastructure ready to go for that liquid stuff.