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A quick google suggests there are speifications surrounding PoE power delivery. If you are buying a "reputable" device which implments to this spec it should be fine. The device suggests it can be power from 24V or 48V DC and can handle 120W total. PoE is technically limited to 15.4W per...

Another consideration is DC return paths. If the PoE is not fully isolated then DC ground returns can take unexpected paths. Including, but not limited to, your house earthing circuit.

"Shim-cells". Small cells used in parallel to match a cells capacity with peers. I have a lower capacity cell. It's the first down and the first up and over voltage. It actually seems quite difficult and quite expensive to buy small cylindrical LFP cells. I do have a "clatter" of LiIon...

The other thing I need to look at is the efficiency. Hopefully this will become a "non concern" with trippling the through put, but.... For 8kWh generated my AC loads get to use about 6kWh. Where does the other part go? They go to the MPPT controller, the RS485 monitor, the ESP32 Bluetooth...

I have one 330W panel. I ordered another 2. My 100Ah battery will not take.... rather, I do not want to throw all 1000W at it. Similarly I can't increase the load side too much to reduce the amount of "excess solar" going to the battery because the moment the sun goes back in behind the...

So, I went with the "split" approach. One routine works out what the battery net charge wattage should be. The second will then modulate the charge limits to achieve that wattage using the actual battery BMS values. Routine one, so far looks like this: def notify(self, topic)...

The grace, if any, will be in the expectation of what numbers the average joe will use. My MPPT has a 100V limit. However that is for the VoC of the string. The rated/stated VoC for panels often has a list of conditions. I have seen panels routinely blow through their rated Voc. Maybe by a...

In the UK we have funky earthing. In short our earth often arrives already broken out of the PNE (protective neutral/earth) conductor from the utility. So 2 conductors to the house, splits into 3. This guy explains. He has other more specific (to generators, ESS and EVs), but the main fault...

Maybe.... I just watch the weather. If it's going to be the normal grey overcast with sunny spells, I can risk leaving all 3 panels engaged in parallel. If it looks like it's going to be a couple of proper sunny days, I can switch one panel off. EDIT: If I am leaving the house for any...