### **Questions** **General:** - Is there a user manual for WW? (if so please ignore remaining questions) - I have configured 7 schedules (1 for charge and 6 x 30min progressive discharge slots for 4pm to 7p peak rate), but I cannot see these schedules in my inverter settings (looking at the GE cloud app), nor can I see any activity in the WW CSV log history (schedules saved ~30minutes previously). When do schedules get sent to the inverter? **Scheduling:** - What is the behaviour of the SOC %ages: "**Required SOC:** The minimum state of charge value of your battery required to trigger an export event". □ So if the required SOC% is met does this then download the schedule to the inverter? Does this cause a timelag for actual export compared to the requested "From (hh:mm)" time? □ If the required SOC% is not met does the inverter go into ECO mode (my desired behaviour) or does it do the native GivEnergy behaviour and disable the battery? "Stop export at:" SOC %age: □ If Stop export at %SOC limit is reached before the "To (hh:mm):" does the inverter go straight into ECO mode (my desired behaviour) or does it do the native GivEnergy behaviour and disable the battery? ### Background: I have just started my free 2 weeks trial with Wonder Watt. I have GivEnergy 5kW Gen3 Inverter & 9.5kW battery. I currently use Octopus Flux and am considering switching to Intelligent Octopus Go for upcoming EV purchase. Why Wonder Watt now? -evaluate if potential solution to stop GivEnergy battery discharging during additional IOG car charging slots -with Octopus Flux does it help fix the GivEnergy discharge issue (with my current system when dischaging and you hit the lower SOC%age limit the battery is disabled and consumption starts from the grid (typically at peak rate) -if EV delivery is beyond the spring equinox then WW weather forecast feature may help minimise charging when sunshine expected (even in Lancashire). ### **Progress so far:** have configured schedules, and now have disabled them. I saw on the GE inverter cloud app that my inverter and battery were due a software update and reading WW and GivEnergy forums it seems sensible to get this updated 1st. Having executed this update it seems sensible to run in GE native mode for a few days before enabling WW (one variable at a time). Old inverter firmware was D0.309-A0.309 replacement is 316 Older battery firmware was 3017, replacement is 3020.

Not a manual but the FAQ is here [https://community.wonderwatt.com/d/5-wonder-watt-faq] My experience is that schedules are sent to my inverter just before each is needed (if indeed it meets the criteria such as SOC). I find that my Giv always returns to Eco. I don't have all your answers but I can tell you my 15 month+ experience of using WonderWatt (WW) with Octopus Intelligent Go (IOG) has been very positive... fiscally as well as UX. The most crucial function for me is the Holding of the battery (plus charging it) when the EV is plugged in. Without WW my EV would suck all the charge from my battery before using the grid. With WW not only is my battery charge preserved but also added to at ~7pence when IOG give random bonus slots outside of the 23:30 to 05:30 cheap rate window.

@"daveharding100"#p9435 You may wish to take a look at this thread started by @"MrMessy"#247 https://community.wonderwatt.com/d/934-wonderwatt-battery-discharge-cheat-sheet-unofficial I too have taken the foundation of this thread, adapted it for my own use and now, generally Export during the peak demand windows as follows [URL=https://imgapi.wonderwatt.com/i/Q9e4TjZ.png][IMG]https://imgapi.wonderwatt.com/i/Q9e4TjZh.png[/IMG][/URL] My setup is a GivEnergy single AIO system with 13.5kWh capacity, which I want ~20% left in by the end of the Export to last me through to the next IOG charge window 23:30 - 05:30. Hopefully, this helps you too.

@"KristianS"#p9480 Hi Kristian, Thank you, this is very helpful. I spotted that both you and Mr Messy have 10min gaps between each discharge slot; what is the reason for this?

@"daveharding100"#p9481 it's a good idea to leave a minimum of 5 mins between schedules, either import or export, to avoid any possibility of overlapping instructions being sent. WW sends commands in 5 min blocks, and includes multiple retries if necessary, to account for "failed communication" with your inverter. Each command will include several instructions to, and it's not unknown for inverters to have a bit of a wobbly if they get too many instructions in a short space of time. The guide that @"KristianS"#135 linked to was just meant to be a guide really, as a lot of people had asked for some help. You can tailor it for your own needs. Mine currently looks like this: 😆 [URL=https://imgapi.wonderwatt.com/i/zZU0qV9.png][IMG]https://imgapi.wonderwatt.com/i/zZU0qV9h.png[/IMG][/URL]

@"KristianS"#p9480 are you using Agile Outgoing, or your conscience?

@"daveharding100"#p9511 What's your WattID please?

Newbie Basic Questions

daveharding100

MrMessy
Many thanks - this is very helpful (& additional to what is included in the FAQ)...
...perhaps I am just too old, but I do like to have manual to explain this stuff.
I will give it a go at the weekend - perhaps more questions then🙂

daveharding100

Hello,
I have been trying to run some basic schedules on WW to make sure that I understand its operation...
...none of them are doing anything.

System: GE hybrid 5kW inverter + 9.5kW battery + 5.6kWp of solar panels

Example below:

I saved this at around 10-30am and you can see that it is set to run at 11am.
The battery was at around 92% SOC, so well above the 80% minimum set in the schedule.
I can see no activity in the log:

I was expecting to see the schedule downloaded at _11am.
I cannot see any changes to my discharge schedules on the GE inverter
Anyone got any ideas why the schedule is not operating/downloading?
...I am sure some basic schoolboy error
many thanks
Dave

admin

daveharding100 What's your WattID please?

daveharding100

Hi Admin,
Thank you for your speedy reply:

I found this on the Advanced Settings page.

Your Watt ID: weepy-room

Is this what you were after?

Best regards

Dave

admin

daveharding100 I can't currently see any of your Schedules being 'active'? None have their toggle set to Active.

daveharding100

admin
Hi Admin,
Yes, after my last unsuccessful experiment I disabled everything (the GE native inverter schedule is running & I didn't want any surprises). Have updated the test export schedule to run on Monday morning - see screenshot below:

Again, thank you for looking into this.

Best regards

Dave

daveharding100

Hi admin,
This schedule did not run this morning. From my (limited) understanding it should have done:
-set to run at 8am if charge >70% (charge was ₈₆% at 8am)
-I edited the schedule and set it to be active yesterday evening (I understand that WW polls the schedules every 5mins, so several hours with no changes should be enough?
A couple of random thoughts/questions:
-Am I OK to keep recycling/editing the same test schedule or should I delete it and start from 'fresh' for each test?
-does my demons account have any restrictions? (Eg I can edit but not run any schedules)
I really appreciate your help here
Best regards
Dave

admin

daveharding100 OK, we spotted an issue (export failed early on), should be alright now.

daveharding100 Am I OK to keep recycling/editing the same test schedule or should I delete it and start from 'fresh' for each test?

Yeah, no problem with that.

daveharding100 -does my demons account have any restrictions? (Eg I can edit but not run any schedules)

Nope, no restrictions.

daveharding100

admin
Thanks - OK will see how this goes tomorrow.

Can you tell me anything more about the issue? Anything I should / should not be doing?

Dave

admin

daveharding100 Can you tell me anything more about the issue? Anything I should / should not be doing?

Nope, nothing you're doing/not doing! Edge case where we were expecting you to have log entries, but you didn't - yet.

KristianS

MrMessy I am on Octopus: Intelligent Octopus Go for Import and Octopus: Outgoing Octopus for Export

MrMessy

KristianS just wondered, as your export is all between 4-7pm.

KristianS

daveharding100 I have 5-minute gaps in between my schedules as per the same reason @MrMessy suggests. It can take a few moments for the commands to travel over the ether and for your Inverter to process them, so better to allow some time for this to occur IMO. We could probably get it under 5 minutes going forward, but it works, so I don't mess with it too much. Classic case of "if it ain't broke, don't fix it".

KristianS

MrMessy It is... but that is purely to help the grid at the dirtiest times of day. I do alter periodically when I see large spikes on the forecast, but fundamentally, it is when the grid is stressed

daveharding100

Hi @admin,
Many thanks for your help - all working fine now for a couple of days and have now signed up for the year.
The cost benefit intrigues me. For now I am on Octopus Flux and it is winter, so no need for weather forecasts I just want to max out overnight cheap rate charging, 'All' I get from WW is that it solves the GivEnergy bug: "on discharge, at lower SOC%, disable battery". So I think that I will get more peak rate export and less peak rate consumption + set and forget operation.
In the future and good solution for IOG and, if I am still on Flux in the spring, I will explore the WW weather forecast feature.

Many thanks for your help in getting me going

Dave

KristianS

daveharding100 We do still get some sunshine in Winter. This last week or so has confirmed that in abundance!

daveharding100

Hi KristianS,
Yes, we did get some nice winter sunshine last week.

My comment is based on my analysis of the first 12months with our solar + battery system:
https://homeeneryefficiencyukreallife.blogspot.com/2025/04/solar-8-12-months-review.html?m=1

In summary:
-Winter solar production is always <10kWh per day, even on the sunniest day.
-home consumption is 10kWh +/- ~ 5kWh per day.
-Battery size is _10kWh.
-I want a system that is robust to changes in solar production and hone consumption (ie set and forget), and gets as close as possible to the optimum electricity bill.

So, my view is that in winter it is always best to fill the battery at night time cheap rate. WW then does a good job of selling anything that is left at peak rate in the evening.

In Spring and Autumn especially, the solar production varies significantly above and below 10kWh. When it is more than 10kWh then, my thought is that, it is worth charging the battery less when a sunny / high production day (>15kWh?) is forecast, because it costs more to buy cheap rate electricity than I get for selling excess solar to the grid. Anyway, a problem for February/March as I see it.

However, I am new to this, so interested in other people's logic and your experiences with WW solar production forecasts

Dave

KristianS

daveharding100 And so 'depends' is always the answer. IF your EXPORT income exceeds your IMPORT cost { + around 10-15% factored in for round-trip costs - as you confirm in your article] then the current consensus seems to be to fully charge your battery and sell whatever you do not use back to the grid. That of course, assumes you can indeed EXPORT everything you generate, as this is the other limiting factor. If you can only export at G98 3.6kW and you generate more than that value, you will find you are not getting the most out of the system. But WW takes care of this with the Smart Charging feature, which will take into account the following parameters: "Smart: Wonder Watt will calculate the target percentage based on SOC, your average daily usage and the solar forecast.
This in theory should reduce the IMPORT charging to allow the sun to complete the rest and then still have enough to cover the house load and provide some EXPORT with the excess. Theory is a wonderful thing.
However, I note several points from your article, 1) that your daily home schedule has far more impact on consumption than the variances in solar production has as an effect on the system and 2) that you are limited by the Octopus Flux: Import (cheap rate): 02:00–05:00 window - I am not sure why you are limited to 3.3kW on your inverter? Particularly in the winter when you have identified a reduction in charge rate due to cold cells. I do not suffer such challenges as I have a utility where my system is installed, and thi,s while not heated directly, stays above 15-20' °C naturally.

Noting the following rule changes on battery installations
Habitable rooms: Storage batteries should not be located in living spaces or bedrooms. The standard requires them to be placed where a fire would not compromise protected escape routes.

All this does somewhat limit your options, particularly in the winter, as you say. It would appear that you can only feasibly EXPORT only for about 3-4 months of the year on your current setup.

KristianS

It is worth saying... Forecasts and reality..... always a tricky call