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 Fixed in release 1260. UI glitch where if there was only one entry in the Rate Preset dropdown, you'd think it was set, but without saving it would not have been. As was the case with you.

Now shows a 'Choose rate preset..." if none has been selected.

duplada

OK - Thank you. So we will have a test rerun tonight, before I move on tomorrow to the more complicated charge schedules.

duplada

When you apply a Saved Rate Percentage from the list. Is the selected percentage used for Adjusted schedule end time calculations?

admin

duplada Good spot, it wasn’t but we’ve made that change now.

duplada

OK Thank You - These changes are going to make a big difference to the system going forward. Great Work 😉

KristianS

I have created two Rate Presets and I have two different Exports for the Evening Peak
I will let you know how I get on.

KristianS

Would it be possible that the currently selected 'Rate Preset' be added as another column to the Schedule page, so it is clear that the Global Rate Limits are being overridden by that Schedule?
Just a thought

admin

KristianS Yeah, good point!

duplada

I can report that all last nights Export schedules executed as planned and set the correct Rate as applied to the schedule.

Now to test the Charge Schedules tonight.

Can you explain now that the modifications are in place what happens on a charge Schedule.

With the "Auto Charge Rate" set to "Off" then the selected Rate Preset is the "Charge Rate" in this case "Full power 100%"

But could you explain what happens when the "Auto Charge Rate" is set to "ON" "Adjust Charge Rate"

admin

duplada But could you explain what happens when the "Auto Charge Rate" is set to "ON" "Adjust Charge Rate"

Should be the same as what happened before, calculate appropriate charge rate to reach target SOC by end time.

duplada

OK Understood

duplada

When a Preset Rate is being applied do you think it is confusing to display the Charge Rate as 100%?

admin

duplada Yes - we'll rename that to "Use selected preset below" or such.

duplada

admin Yes - we'll rename that to "Use selected preset below" or such.

Just to let you know that I have finished testing the Schedules both Charge and Discharge with numerous power settings. Other than the modification to the Schedule screen discussed above to be completed. I declare the system 100% working and a very good addition to WW system, Great Job @admin

admin

duplada Thanks for testing, we'll make it publicly available this week.

admin

This has now been rolled out and is available in version 0.5.1270.

Thanks for testing @duplada & @KristianS

KristianS

admin Great. Thanks for making this widely available.
Would it be possible to add the Preset Rate used to the Activity Log entry for both Import and Export, if it applies to that activity? If the standard default rate is used, that is also indicated?
Just to keep abreast of when an operation occurs you can decipher the logic used.

admin

KristianS Yeah good point. We also need to add the rate% to the schedule table list. We’ll get those changes in.

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