Yep, sounds a plan.
The beauty of having options is choosing the one that bests suits you and your circumstances.
For me, i’m exporting waaaaay more than 50%… its closer to 75% as I have no battery or EV yet.
But what about this for a plan with your Powerwall?
Fill your battery up with free solar and then sell some of it back between 4pm and 6pm at 11p per unit.