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Not sure whether this is the case here but the Octopus app tells you your cost is one thing but they do all the clever reconciliation when your bill is produced (same for saver sessions). I don’t like it either because it means you’re never sure what your real time use is, but i’ve checked it over ...

The intermittency suggests a comms fault or faulty EW11, i’ve heard from previous users that they are very susceptible to power supply and they’ve fitted a 12V 1A power supply which sorted the problems - also worth checking you have latest firmware.

What length is your RS485 cabling and what cable ...

I’m guessing you have an H1 G2 inverter that has had a recent firmware update (1.61 or later) - there is a firmware bug in the latest firmware that removes your force charge/discharge options - you’ll need to message Fox and raise it with them, most users were falling back to Manager(ARM) 1.58.

On ...

The inverter and batteries take power to run and there are numerous losses in the system, chemical losses in the batteries, power to run the BMS, the inverter DC to AC in the solar MPPT’s, and AC to DC in recovering power from PV or the batteries.

300 watts appears to be high, normally i’d expect ...

Lithium ion (Li-ion) is different to Lithium Iron Phosphate (LifePo4 aka LFP), your batteries are LFP and you will get the best out of the if you make sure that you do a 100% charge at least once a month (or your SoC accuracy will drift), and also set your minSoC to 10%. The batteries are warrantied ...

Hi I have the same problem here although a lot higher wattage.
I just got this system installed today.
The battery was at 50% when they installed it. It quickly charged to 100% even though I was set on self use, charge from grid disabled,
Then the battery proceeded to discharge itself at the full ...

Ok well that explains the tripping, it’s possible one of the conductors was left slightly loose and it has been arcing which will eventually cause the contact to severely overheat and damage the cables (i’m hoping it isn’t in the inverter mains connector) - obviously not good but fingers crossed for ...

Without a meter or CT a hybrid inverter won’t work, it has to have one or the other.

The meter can be direct wired or connected with a CT clamp as yours is, but it is still a meter as far as the inverter is concerned - the main reason to use a meter over an inverter direct wired CT clamp is that it ...

Settings, (password is 0000 so press Enter 4 times), then Battery and MaxChgCurr - this is the DC current in amps and you need to know your battery voltage to work out power in watts.- if you go to the app click on ‘Devices’, Battery, Info, Detailed Parameters it will show you your battery voltage ...

Sebastian and Dave, did this work ? My system a 5kw inverter and 10kw battery for the last couple of weeks charges for about 15 minutes in the 2-5 am cheap rate time and I wake up to a tripped breaker on the consumer unit fitted by the installers nearly a year ago. It always switches back on fine ...

A few people have complained about this today, some were able to change the values back to sensible numbers, some couldn’t - but i’m hearing that it may have been sorted by Fox in the cloud, can you confirm ?

So a couple of things, if you get the latest firmware on your inverter it now supports the use of the FDPwr setting in the scheduler as a charge power setting.

i.e. once you have the latest firmware you can set a Force Charge at night with a maxSoC and FDSoC setting of 50% and FDPwr at whatever ...

Hi and welcome to the forum.

It's a steep learning curve but there should be lots of useful posts and videos here for you, obviously if you need anything ask away.

Also if you are a Facebook user, there is a Fox ESS community page which has over 10,000 members from around the world, it's usually ...

The inverter firmware versions you should be able to see in the app click on Device, Inverter and then click the serial number underneath the image of the inverter at the bottom it will list the firmware versions.

You cannot update the versions yourself, that's an installer task and can be done ...

The meter RS485A/B is only to be used for meters as it is a different protocol used.

You should be using EMS485A/B on the COM port for your RS485 modbus connection.

Don't forget that it's easier to run a single pair cable to the inverter (no power or GND needed it is a differential pair) and have ...

If you have home assistant you can throttle battery charge based on house load or similar - the gen 2 inverters (H1(G2), KH) running latest firmware also have an importlimitpwr setting which allows you to set your maximum import power which I think is what you are describing.

Also latest gen ...

I'm using this method to reduce the power charge when needed from grd at night.
In the morning I increase the values again, so I didn't checked if this setting is valid also for the PV charging mode like a general current limit, or only for grid charging.
??
Best regards

It affects all battery ...

An AI search for code 1148 returns this (which seems about right) - i’m assuming you have either an all in one or a single phase inverter with battery in which case their should be a cable from the inverter to the battery or from the inverter to the hub (a CAN bus cable which looks similar to an ...

With a 30mA RCD you may see inadvertent trips, some RCD’s trip out well below their rated limit and the problem with multiple devices all sharing a single RCD particularly those with large heating elements, pumps etc.. they combine very quickly to overload the trip limits and a heat pump and ...

The bigger issue may be the sizing, Fox recommend a minimum 100mA RCD so as long as your not on a 30mA breaker you should be ok.

The inverter has an internal RCD that allows it to disconnect it’s live conductors if it exceeds DC thresholds (which performs the actions of a type B RCD) - the fitting of an external Type A RCD is the only UK requirement.

If you want to do local control using home assistant (or similar) you'll need a modbus connection - lots of info here about that https://github.com/nathanmarlor/foxess_modbus/wiki/Modbus-Wiring-Guide

With the modbus you get much finer control over what and when the inverter does things, and it ...

That’s very difficult to isolate, system losses is the closest you will get to a sum of all losses in the inverter/batteries etc.. but to get to inverter consumption on it’s own not so easy.

When there is no solar it is effectively the difference between the battery discharge power and the load ...

Yes all of that is no problem and once you get it running you'll discover more and more ways to keep you amused ;)

You need to connect to the inverter over modbus and there's a guide here that shows how the modbus adapter is wired https://github.com/nathanmarlor/foxess_modbus/wiki/Modbus-Wiring ...

This is the datalogger access and it is used to connect the inverter to the Fox cloud and not for local connection to your computer/app so all you can do here is configure the wifi connection which should have already been done by your installer. If you can see the inverter in the app / Fox cloud ...