I’m on an Ev-A TOU plan, peak, partial-peak and off-peak. When in TBC (TIME-based control) usually as solar ramps up, it covers house loads with excess going to recharge the batteries until they are at 100%. This time of the year, batteries reach 100% well before peak period when 100% of solar goes to the grid and the batteries cover the house loads. I‘m fine with that behavior.
But sometimes, like this morning, batteries are at 79% but all excess solar is going to the grid even though it isn't a peak period. I’ve had to switch to self-powered mode to get the batteries to start charging. WTF, why the change in behavior? It isn’t weather related. Another thing that changes is coverage for the 2 hour partial-peak period after peak ends. Although the batteries are well above the reserve setting, usually, the system has the grid cover that period as well as all the off peak hours but sometimes it has the batteries cover the partial-peak hours and the grid is only used for the off-peak times. Again why the change of behavior? Again it isn’t weather related and the SOC is well above the reserve setting.
I wish I could count on the same behavior and not have to switch settings to force the batteries getting charged with excess solar. Any insights into the changing behavior?
But sometimes, like this morning, batteries are at 79% but all excess solar is going to the grid even though it isn't a peak period. I’ve had to switch to self-powered mode to get the batteries to start charging. WTF, why the change in behavior? It isn’t weather related. Another thing that changes is coverage for the 2 hour partial-peak period after peak ends. Although the batteries are well above the reserve setting, usually, the system has the grid cover that period as well as all the off peak hours but sometimes it has the batteries cover the partial-peak hours and the grid is only used for the off-peak times. Again why the change of behavior? Again it isn’t weather related and the SOC is well above the reserve setting.
I wish I could count on the same behavior and not have to switch settings to force the batteries getting charged with excess solar. Any insights into the changing behavior?
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