What exactly does"importing 0kWh less from the grid." meanPresumably it means import 0kWh less from the grid between the period of the trial - 6:30 pm and 7:30 pm - and necessarily I suggest with reference to another equally precisely defined period of time. So when is that.I tried the trial a few days ago and guessed it meant what it said, so tried to use nothing less (which to an engineer means use the same or more than) in the 6:30 / 7:30 period than I had in the previous 1 hour period, so ra ...