I haven't had the batteries long enough (just a couple months at this point - took more than a year to get them) to work that into our habits in all seasons. I expect for 6+ months of the year the batteries will enable us to run virtually off-grid, with minimal draw from the grid, perhaps with the exception of charging the cars. Power production in those months vastly exceeds our usage.

Conversely, this time of year (winter) the way our house is positioned with the sun (on a hill, surrounded by tall trees) we generate a pretty small amount of solar, and are running the heaters a lot, so very grid dependent. The batteries would power the house for maybe 12 hours in an outage.

Last summer I'd often charge a car during the day instead of at night because we were generating more than the draw of the EV charger. I have an internal debate about whether this is better, because the power company's time-of-use structure incentivizes me to not do this, but instead export the power to the grid. So I'm not actually sure whether maximizing my energy usage at the time of production is less carbon intensive than exporting it to offset the rest of the community's usage. I guess it all depends on what's generating that grid energy at night.

For the most part within the house though, the batteries let you not care too much about what energy you're using when.