I just got a 19.98 kWh array (20kWh is the limit) and it cost a bunch but due to the local net billing, we're going to be able to sell back enough that it will

I just got a 19.98 kWh array (20kWh is the limit) and it cost a bunch but due to the local net billing, we're going to be able to sell back enough that it will wipe out our bill plus some most months.* Specifically, for December, we generated enough to pay the entire bill and create a $70 credit on January's bill. We can't project a trend from a single month but I'm optimistic. * ymmv - Our rooftop is southwest-facing with zero obstructions and we've applied a number of energy-saving tactics inside. Also.. fun side thing on timing. We signed the contract in June. They did the site survey in July. The cells+batteries took 8 weeks for delivery (normally 2-4 weeks) and install has taken forever. Talking with the crew recently, the stated delivery time is 12+ weeks but they're seeing almost 18 weeks. It's a bad time to do this at scale.