FoxESS Community - Owners & Installers Forum

Anyone else noticed that their Axle export doesn't match their suppliers export?
I have the results now of 4 sessions and on each occasion, Axle report me as exporting less than Octopus

Date.........................Axle......................Octopus's reading......................Difference
27/7........................ 3.7 ............................... 4.08...................................... 0.38
4/8 ........................... 4.6 ................................. 4.83 ............................... 0.23
5/8 .......................... 3.8 ................................ 4.268 ....................................0.4268
7/8.............................. 4.2.................................... 4.498....................................0.298

Now although the differences are small and are still profitable, I can't understand how they can have readings that differ from Octopus'. Axle have no hardware installed so presumably can only have the same readings available to them as Octopus.

I have 3.9kW export limit, and I either see 3.90kWh or up to 3.92kWh

Last one was 3.92kWh Axle, 3.922kWh Octopus as they go the extra digit. Pretty much the same for all prior events.

So yours is pretty much spot on. To my mind the reduction is approximately what I consume in an hour at those times so I'm wondering if they are double dipping my consumption i.e. it is already not available for me to export because I've used it (which is how Octopus see it) but for some reason Axle are taking it off again. The reason I say that is because the closest match (0.23 discrepancy) was an overnight session when only "always on" items were running whereas all the others were evening sessions when TV's etc would also be running..

Yes mine are pretty much spot on.
I can only guess that Octopus and Axle are getting readings from your smart meter, and using that for calculations.

So even if your house was using some load, the export readings should match as it's a measurement of what passes through the meter for both values. The only logical reason I can think of, would be if your meter clock is out/inverter clock?

Just checking, is your device 'Dispatch power' set to 7 kW? (it does not matter if this is above your export limit)

If by dispatch power you mean "Export limit" that's set to 13KW, otherwise you'll have to point me as to where to see this.

The problem with the clock being out is that it would be Octopus that would underread e.g if an 8-9 event occurs at the time that Axle think is 8-9 but Octopus think it is 8.05-9.05 my octopus downloads would miss 5 minutes at the start, the second half hour would be complete and there would be 5 minutes of export in my 9-9.30 download and that is not what I'm seeing.

spiral wrote: ↑Tue Aug 11, 2026 6:52 pm If by dispatch power you mean "Export limit" that's set to 13KW, otherwise you'll have to point me as to where to see this.

This is in the Axle website, Settings Cog -> Devices -> There you should see your battery and the 'Dispatch power' value.

Can't see a settings cog on the website but have a section called devices. Under this for battery all I see is Battery Soc, Charging power, min battery temp and charge/discharge energy.

There are many categories under "real time" but still nothing called "Dispatch power"

Edit: I've even tried google and after locating device it says click on battery/inverter system. On mine they are both separate so I've tried both (the battery is the one I tried first time). It then says click on settings or advanced settings. Neither section has that option that I can see.
In fact the only settings (apart from quick settings) I can locate anywhere are for my personal details.

On my phone, clicking on the login like in email, this is the sequence I see.

Ah, we were at cross purposes. I was looking at the fox website, not the axle one.
It is set to 7KW.

Also interesting to see that you have odd pennies. All 4 of my events have been to an exact 10p, not penny.