Me and my co-founder developed a smart charging app for Tesla last year. The app charges your car at times when there is most wind and solar power, saving you ~20$/month and 15% CO2 emissions.
We didn't include VW support, since it didn't have an open API and the market share was small. However, both these things seem to have changed now. Even better, the VW API supports setting the charge current too. That means we could also offer to charge only when you have surplus production from your own solar panels. Again, this saves CO2 emissions and reduces energy bills in many countries.
My question: are there any VW drivers who are open to exploring the technical possibilities with us for VW smart charging? Would help us a lot!