I am currently evaluating Wonder Watt and came across the Inverter and Battery Settings in the advanced section. In the Advanced section of Wonder watt you have a Max Inverter Rate (Charge/Discharge) and Max Battery Rate Charge/Discharge setting that you can record. Why can't you record separate values for both Charge and Discharge for Inverter and Battery rates as they can be different. My GE inverters combined Dual AIO power is 12kWh in 12kWh out. However, I have a DNO limitation Outgoing of 9.5kWh. So it occurred to me that in Wonder Watt it would be better to record both Charge and Discharge Rates and not assume one size fits all. It also occurred to me that users may want to charge / discharge more rapidly or slowly depending on a given situation. Therefore in the section where you can create schedules it would be useful if you could optionally enter charge / Discharge Rates for each schedule that you are creating. One thing to note is that if like me you have a GE dual AIO setup then when Wonder watt sends the Battery Discharge Power = xxxx command to my system this command Does Not Work. However, the Discharge Power Percentage does work. So in settings section a field to record whether the system has dual AIO's would be useful to determine which command to send depending on the system type.

> @"duplada"#p8274 Why can't you record separate values for both Charge and Discharge for Inverter and Battery rates as they can be different. My GE inverters combined Dual AIO power is 12kWh in 12kWh out. However, I have a DNO limitation Outgoing of 9.5kWh. So it occurred to me that in Wonder Watt it would be better to record both Charge and Discharge Rates and not assume one size fits all. Yeah, this has come up before and we will be implement this over the next week or so. > @"duplada"#p8274 However, the Discharge Power Percentage does work. So in settings section a field to record whether the system has dual AIO's would be useful to determine which command to send depending on the system type. Is this guaranteed to work for any dual Giv AIO combo or is this possibly a firmware issue?

Plus 1 for the separate Discharge/Charge rates [as previously discussed]

@"admin"#p8275 GivEnergy and Guaranteed in the same sentence.... Interesting concept

@"admin"#p8275 I don't know if its a bug or not but as I said Watts Value dosn't work Percentage does work on dual AIO's. I have an open support ticket ongoing at the moment on a issue so I will try to find out and let you know. and will you consider being able to specify a Charge / Discharge rate in the scheduler to speed up slow down specific schedules. I have been doing some tests and I get more out of the discharges if I run at around 50% max capacity. I just changed from Agile to Go and I cannot get IOG with the GE Charger and the MG car I own. However, If I could adjust schedule execution speeds I would be prepared to pay for that feature although 90% of Wonder Watt wouldn't be any use to me.

@"admin"#p8275 Regarding the firmware I am on the very latest not released V13 Gateway, AIO V13 BMS AO.618

@"admin"#p8275 If I explain a little bit more why being able to set a charge rate in a schedule is useful. Having a dual AIO system is good if you want to import at 12kWH and is good for sucking up lots of KWh's in a short space of time. However, it can be a curse also. I have the GE EV charger which does not support dual AIO's so All the cloud settings such as "do not drain the batteries" do not work. Therefore if you are on GO like me you start a charge on the batteries at 00:30 and charge the batteries to 100%. Now unless I go into the portal and mess with the Battery Inverter Percentage setting in addition to the Start and End Time settings, the charge will commence at 12kWh, If the EV needs charging I will fire that up which adds another which because we are already charging will take power from the grid rather than the batteries. However this adds another 7.2kWH to the load, so now with the dual AIO's running at full chat along with the EV charger I am one kettle boil away from exceeding the 80amp Gateway Limit. I have done this and the Gateway crashes, shuts down, the house power goes off, and is a nightmare to get up and running again, a full afternoons job. So I would like a schedule called EV Charging Tonight it would run from 00:30 to 05:30 and I would set The Battery Inverter Percentage to 45% this would give enough power / time to fill my batteries from 10 to 100% and give me the headroom to charge the EV without getting anywhere near the Gateway limit. The beauty of this is that all the settings get set back after the schedule completes, something I always forget to do which is always costing me money. So If you can implement this request then I will subscribe just for that feature alone as it will be worth it for me.

@"admin"#p8275 Hi, So I have an answer from Givenergy regarding the Battery Charge Power and Battery Discharge Power command. They are NOT supported on dual AIO systems. The Gateway ignores the command and does not pass it on to the AIO's it's by design and not a software bug. Therefore in your Advanced section of Wonder watt you need to ask the question is you Givenergy battery an AIO. If yes then send the Battery Charge/Discharge Percentage values in your commands instead of the Battery Charge/Discharge Power watts values. So In summary in the Advanced section of Wonder watt Record if their battery is a AIO Users can add Battery Charge/Discharge Value and also Inverter Charge/Discharge Value or Record if the user has an AIO then only record a Battery Charge/Discharge Value Add a option in Schedules to record a per schedule Charge/Discharge value that overrides the advanced value. This gives significant per schedule flexibility to control the charge/discharge rates on a schedule by schedule basis. As I said above if you can implement the above I will instantly subscribe to a full year. As It will mean I only need one utility to control my battery system. Well worth it IMO.

@"duplada"#p8293 What is your WattID (under version number in the navigation menu) please? So we can check the logs. Don't worry - think we've located you, we will look at implementing this. Anyone else with a dual AIO set up here who has noticed the same issue?

@"admin"#p8294 It's circular-strategy thanks for including the feature I look forward to it's implementation in due course thank you.

@"duplada"#p8295 The information re the command being not supported on Dual AIO's came from Paul L

Separate Charge / Discharge Settings for both Inverter and Battery + Schedules

admin

duplada Yep, this will be on the list next.

duplada

admin Yep, this will be on the list next.

The Discharge Power Command is Working again I will report full overnight schedule run status in the morning. Thank you once again for the excellent support and dedication.

If you now find the time to get the Separate Inverter Charge and Discharge rates in place I will be able to run fully hands off with accurate WW adjustments. Let me know when you have updated it please.

duplada

admin Yep, this will be on the list next.

So, the Inverter Rates for Discharge and Charge in Advanced and your idea of Named ("After Burner","Full Monty", "Steady Eddie"), or % Rates in Standard Scheduling. I realise this is probably a big job to implement? Is it coming soon? Just asking I know you have been very busy. 😫

duplada

Thank you great support as always

Steve1

admin Hi I have just had a 2nd AiO installed and I am on the Octopus Agile tariff. It now seems that the configured battery charging schedules on WW are no longer working.

admin

Steve1 make sure you go into Settings, Connect, then save, so we pick up your AIO gateway serial number. Should start with GW.

duplada

Steve1 Hi I have just had a 2nd AiO installed and I am on the Octopus Agile tariff. It now seems that the configured battery charging schedules on WW are no longer working.

Hi Steve1, Welcome to Dual AIO club, makes sure you use the full range of your batteries often to keep the SOC in sync otherwise you will hit problems. The trick is 100 to 4% once a week at least to stop this happening.

Steve1

admin Hi, I had already done this - but now done again - I can see the AiO Gateway S/N

Steve1

Think I have an issue with GE AiOs - have an error showing for one of my AiO when I look on the GE Dashboard - hoping to sort out with GE

Steve1

admin So, I have a similar situation now I have added a 2nd AiO. I have set the Battery Rate to 8 Kw (export limitation by DNO) and Inverter Rate to 12 Kw (dual AiO’s - 6 Kw each) - is this right?

duplada

Well the problem is Steve that it really needs an Inverter Rate for Incoming and Outgoing. Otherwise WW automatic calculations of end times can become incorrect. I have been struggling with this for a while now. Admin suggested that he would look at this soon.

Steve1

duplada Hi duplada, I did see something about this in an earlier thread. Given it is not possible atm, what values do you suggest I input for Battery Rate and Inverter Rate in the WW APP?

duplada

Steve1 Hi Steve missed your post. I set mine to 12kWh for both Battery & Inverter even though I am limited to 9.5kWh on Discharge. Otherwise WW tries to adjust my Inverter rate on top of my already limited output.

Mission control has this in hand and is intending to provide Inverter separate Charge and Discharge rates in Advanced and possibly within schedules.

With separate rates in Advanced all the issues will go away you will have better control over the inverter and WW SOC (Adjusted) end time calculation will then be a lot more accurate for each system.

Steve1

duplada Hi Duplada, many thanks - I’ll do the same (12kWh for both Battery & Inverter) pending WW update.

Steve1

duplada Hi Duplada, as said I have set my Battery and Inverter rates to 12kWh. However, as we also have an EV, I note that when I am charging the EV overnight (at about 7kWh) then only about 5kWh is being sent to the batteries. I assume as the import is set to 12kWh then there is nothing I can do about this?

duplada

Steve1 I assume as the import is set to 12kWh then there is nothing I can do about this?

Hi Steve it really depends on a number of things and on how you system is wired. I would contact your installer. A setting of 12kWh in WW will not limit the combined amount that your GE Gateway can deliver to connected devices. This has been set to 80amps (Roughly 18kWh) by GE. Below is a screen grab of my EV charger in operation, if you do the maths you can see that the Gateway is Importing18kWh plus some solar generation 0.8kWh, my battery is (Gateway throttled) charging at 11kWh (rather than 12kWh), the EV is charging at 7.2kWh and house load at 0.560kWh.

Steve1

duplada Thanks Duplada - I’ll check with my installer. Also, I am getting a few random error messages with WW regarding charging, see below;

2025-10-18 05:30:06 N/A %
Error parsing system data response after 3 attempts, txId: Ek8UKk08
2025-10-18 05:03:06 80 %
Error setting discharge-rate schedule: There was no response from comms. Please try again [bk1NRGP1]

Any suggestions?

Steve1

duplada Hi Duplada, when I contacted GE on this topic (EV + Battery charging) it was stated that the maximum current is being set at 50AMPs (even though I have GE set this at 80AMPs - as per your previous suggestion). Apparently this is being set by WW. Any ideas as to why?

duplada

Hi Steve read this thread

https://community.wonderwatt.com/d/1027-failed-execution-of-standard-schedule-not-recorded-in-ww-logs

Steve1

duplada Hi Duplada, great, many thanks

KristianS

I have also noticed that if I reset my Inverter to factory defaults on GivEnergy app, the next time I Export, it does so at Full rate..... this I thought had been fixed too. I have tried it twice in that last couple of weeks. I was going to have another go tonight, but GivEnergy portal and therefore App is offline due to the AWS issues.... one for another day

duplada

duplada Yep, this will be on the list next.

When you do find the time and I am NOT Nagging can we see if In schedule Rates can be included please. I want to go slow and easy in the free sessions for instance, but I don't want to mess with Advanced Rate as it messes up all my overnight schedules up.

duplada

duplada Yep, this will be on the list next.

Any news on Inverter Rate modifications? Seems to be taking a while? I would give anything to be able to specify an Inverter rate in standard schedules, until we either get an Import and Export Inverter Rate in Advanced or In Schedule % rates I cannot run automatically all of the time. I am having to micromanage my Inverter Rate Setting in Advanced multiple times and have to remember to set them back which is a real pain.

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