[cyberax]

> Does anyone know of a setup like this? Basically a power bank that charges primarily from solar, secondarily from the grid, and provides my normal panel with power through an inverter (or panels/inverters, I actually expect). Feeding back to the grid seems more trouble than its worth...

You need to look for off-grid inverters. They are now really popular in Ukraine because of constant power outages.

They are also getting incredibly cheap you can buy one for less than $1k: https://signaturesolar.com/eg4-6000xp-off-grid-inverter-spli...

The state-of-the-art are inverters that can seamlessly blend off-grid and grid-tied functionality, so you can both export your energy to the grid (if you have a surplus) and smoothly fall back to the battery power if the grid is lost. And they can even control standby generators in case the battery is gets low and there's no grid power.

What blows my mind, is that you can even parallel them together to get more power if needed. They even handle the grid synchronization without any voltage spikes.

I'm familiar with this model: https://www.santansolar.com/product/eg4-18kpv-hybrid-all-in-...