Hope to export about 15 units today earning me £2.50. Import cost £1.50. In the words of Wilkins Micawber "result happiness".

And again tonight

WW handles this so simply. There are 8 export schedules, 8 charge schedules, 1 hold schedule - a total of 34 interactions with my inverter and it will do it all without fuss (repeating the commands if necessary if the inverter is momentarily asleep and gives a command timeout).

Last nights log is a testament to this. Not a single hiccup to the WW schedule. There were 40 inverter timeouts which had to be retried but all command sequences worked.