Several storm watch activations. The battery starts charging right away when storm watch goes active (even if it's late afternoon critical peak).@tga - how did your PWs do this winter? Oct-Feb was rough in the MWV between the extreme cold and cloud cover, although our PWs did ok with a little manual tuning. Only one major outage for which we switched off the mini-split heatpumps and used the boiler to conserve power.
We'll see what happens this winter when my available solar drops significantly - I'm afraid I may not generate enough solar to add 20% to the battery for the critical peak period.
It got pretty ugly for a couple of weeks - I had several days when the battery was completely empty due to little sun and snow-covered panels. I have lots of pine trees to the south (some on my property, some on conservation land) which limit direct sun in the winter.
I've noticed It's hard to tell when peak period discharges occurred.
Now that solar conditions are improved, I'm producing more than I need for the critical peak period. For example, yesterday 7kWh of solar, 5.3kWh to the powerwalls, 4.1kW from them during critical peak (enough to cover self-supply for the afternoon). Today, 12.1kWh of solar, 6 kWh to the powerwalls. I should have no problem self-supplying today (with plenty of reserve left).
I am not the only customer with insufficient production in the winter. Liberty is currently petitioning the PUC to allow solar customers to charge during off-peak periods. See filing #80, 1/22/21 and on - New Hampshire Public Utilities Commission and the initial fling - https://puc.nh.gov/Regulatory/Docke...9_2021-01-22_GSEC_TECH_STATEMENT_TEBBETTS.PDF
Hopefully the request gets approved.