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Any streams running through your land? Hydro is also a possibility for power, and makes a seasonal complement to solar. These are a fun watch, if nothing else: YooToob

Yes. These periods are only for when you want to override the usual "self-use" behavior (charge from PV when possible and not-full; discharge to supply house loads while there is still energy in battery; emergency charge from grid if battery gets really low). Over here in England, I'm charging...

*waves* RAI-3K-48ES-5G and 2x US3000C I got the installer to run the backup output down to the under-the-stairs, with the meters etc - because that's where the house DSL and music-server lives. I admit to plugging the espresso machine in there during the one decent powercut of the year...

Can't tell due to lack of units. If it's 140 deg F I'd be worried. 140 C I'd be running away, fast. But if it's 14.0 C I'd not care.

It would, and would thereby maximize your cheap-rate grid use (modulo your preferred 23:00 start, and leaving your battery full at 08:00). But I'm not understanding why you want to fully-discharge your battery, at a pretty high rate, starting at 08:00 (per that image)

Did your wifi upgrade remove 2.4 GHz access? You're hosed. Did it change the Wifi SSID, or the WPA password? The datalogger stick does not know the new info. If so, and IF the stick is the newer type (has 3 LEDs on the front; the older type has none) :- You'll need a computer with wifi and a...

There's a good chance it's a unix-like shell in there; it accepts "bat 1; bat 2" as a single command line. The "log" command can take an argument limiting the number of entries display; default and max is 3. The "info" and "soh" commands take a battery number.

With my US3000C I see the BMS charge limit drop from 37A to 15A when the State Of Charge hits 90%, then just a few A at 97 or 98%, then zero. Then, because the inverter appears to (odd choice!) take it's operating needs of 90W from the battery, a short pulse of 10A or so intermittently. The...

From the graph, it looks like a Solis - hence controllable with some effort. Have a look what this guy did: YooToob I've not gotten that far myself; still feeding a set current from battery 16:00 - 19:00 to dump about 40% of my capacity, and occasionally changing the charge current for the...

So, you're adding new constraints to the solution. Be specific, and don't hide information.

I didn't spot it mentioned, so solcast may be of interest - a forecasting site with a free "hobby user" tier access API for PV prediction. There's a Home Assistant integration for it; no clue on Node Red. Some guy in Scotland did a yootoob on using it to decide when to use an overnight...

Mine also stalls at 90%. I think it's just lying because SOC is a guesstimate until it declares 100% from the voltage peaking. The BMS is still monitoring change during that period; watch the charge-current-limit - it steps down in stages.

A pair of moles, and hanging on to the body, did the trick. It now works via the 485 hub. Next up, getting SolaX on HA to talk via the other port on the hub, No joy so far...

Yup, just gotten one of the Waveshare units, described as "2-Ch RS485/RS232 to POE Ethernet" by Amazon. The documentation is... difficult. It seems to have a single IP with a single port for the active (as opposed to web-config) access; I'm stumped so far on how to get to the other port, but it...

Pylontech say to have the newest unit "first" (ie. master for the stack). I suspect that's to get the latest firmware version being in control, to the extent that it matters.

Isn't that what you want, though? Use that cheap energy you stored rather than basic-rate grid power? I've set mine for 1kW or so from 2-5 AM for the cheap rate, then it runs the house background loads until/if there's any PV, and I run a 400W discharge for the peak rate 4-7 PM just to (try...

The points I'd be interested in are price per kWh ease of later expansion compatibility (mainly of voltage) with connected equipment On the "later expansion" point: I added a second US3000C to my setup. All you need do is ensure the new one is charged roughly similar to the existing, per the...

The first cut at the automation is: id: '1711135569910' alias: Update Solis charge-from-grid description: '' trigger: - platform: time at: '23:55:00' condition: - condition: or conditions: - condition: and conditions: - condition: state entity_id...

I'm pretty sure it doesn't matter, so long as pos and neg are at opposite ends of the stack.

I'm in the middle of doing that, though aimed at the Flux tariff. Considerably simpler, but could be used as a basis for extending to Agile. I'm tapping in to the modbus logger RS-485 port for Solis observe/control and to the battery console RS-232 for observe. For this purpose you wouldn't...

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Rather than thermovoltaic + PV, I fancy water-cooled PV. Just to give a bit of a preheat addition to the house heating in winter; keeping the PV running cooler is a bonus. Sadly: anything involving a plumber is uneconomic around here the PV cooling becomes less effective in midsummer, just...

Solis 3102, installed last month. Not sure what firmware. I'm also seeing 68 watts (sometimes 90) draw overnight, as logged for the "Battery Power" graph on the website (plus a 20 minute pulse every hour or two, to 170W; probably the fridge). The battery (Pylontech US3000C) SOC droops about...

Even the entire 120A would be under 0.5C for a standard 48V pack built from ~300Ah LiFePo4 cells. If your normal production charge/discharge is 10A, you're not going to be pushing that limit. Your "short moments" could be an issue; look carefully at how long the inverter/charge-controller takes...

I don't have an ESP32 to hand - but thanks for the pointer Documenting for anyone else trying this - it turns out that the magic combination is: - SolaX Inverter Modbus - "solis" inverter type - TCP/Ethernet comms - Modbus-TCP - Waveshare 2-ch RS-585 - the after-factory-reset config...

Names like "Gobelpower" and "EVE" come to mind. Also: clever-enough electronics will be able to limit the battery charge current separately from the to-load current.

OK, I'm talking to it (it works a whole better when I don't use a bad pinout for the Wavetech). Presumably the BAL column is something like "balancing in progress" rather than "in good balance state"; mine are also all "N".

I realise you're thinking of not using more Pylontech, but they do make (at least) 3 models in that range, with different capacities. US2000, 3000, 5000. The current submodel seems to be "C". They interwork in a parallel power, serial control string. Put the newest one as the first on the...

First anomaly noted: 6 3492 4092 10300 Charge Normal Normal Normal 94% 68446 mAH N 7 3471 4092 10300 Charge Normal Normal Normal 92% 66990 mAH N 8 3562 4092 10300...

It'll depend what rate(s) you get for export. Consider just setting the from-grid charging period as 23:00 - 08:00 (and you might as well put the current limit on that just low enough that an empty battery gets totally filled). Come summer, if you consistently get enough PV to top off AND have...