PointGuard Home system with generator input (Pro Power Onboard).

[tearitupsports]

Does PG allow you to back-feed the grid with a bi-directional meter so you can take advantage of a utilities surge demand payment with the battery? (ie PGE has a program were they'll pay you to supply power back to the grid during high demand times)

Yes I believe it can. I have never tried it as I use only self consumption based on time of use but it does have an export mode for utilities that will pay you for exported power.

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[Citizen0]

Wow, I'm impressed with this system! I want one . It seems very "plug and play" with impressive specs!

The only downside I can see is that the controller/inverter is always the top module, thus if you start with one battery the wiring and pipes will be at height 2. If you add another (or more) battery modules then the inverter height will change and the wiring/pipes will be too short. I guess you can "future proof" by leaving enough slack in the wiring and adjust the pipes as needed.

I understand why. The battery modules are 160 pounds each vs 77 for the controller/inverter. A fully stacked unit would be too top heavy to be safe.