Technical Support

Not sure actually. I guess it's going to cover your usage first or it would be trying to push juice onto the grid and pull it in at the same time which would be impossible.

Just be aware if you're dumping your battery to the grid there are a couple of things to consider. There will be some losses in the conversion. So you're probably looking at about 87% efficiency. Some of the other guys have been doing some sums to work this out in another thread. The other thing is that your battery is quite an expe sive bit of the system. If you cycle it more often than required and wear it out, it might cost you more in the long run. Just worth taking both those things into your sums if you're going to try and make some extra money by selling at expensive times. Presume that's what you're thinking anyway.