Multiple Schedules available in v0.3.163

admin

Hi all,

Multiple schedules are now available, starting from v0.3.163, you can create up to five schedules and mix and match between charge or export slots.

Your Smart Charging and Optimise Export tariff settings have been migrated over to the new structure, and are available under 'Schedules'.

Day of week runs are coming too, stay tuned.

More info on the new features and supported inverters can be found in our blog post:

https://www.wonderwatt.com/multiple-schedules-smart-charging-with-growatt-and-givenergy/

Please let us know if you spot anything out of the ordinary or have any questions, concerns or suggestions!

Cheers!

jjb

Hi. Loving the new multiple schedules, makes life much easier at this time of year.

One piece of feedback, very minor… in the schedules grid, can we have control of the sort order that they appear in the grid or have them automatically ordered by start time. I just added a top up charge at 15:00 which appears after my export which starts at 18:00. It would be nice to see these in the order that they fire rather than the order they are added into the schedule.

Thanks for all your hard work in this.

Jon

admin

jjb Good suggestion Jon, automatically sorted now on Start Time. Thanks!

SilverArt

Schedule validation.
The validation is done at present against any schedule, active or inactive.

I would suggest that it should be possible to enter and save any schedule as a schedule with a warning when you save it if there is an overlap... 'It will not be possible to enable this schedule if "Schedule Name" is enabled.

Likewise if you try to enable a schedule with an overlap, a message 'It is not possible to enable this schedule as "Schedule Name" is enabled. Perhaps even giving the option to swap the schedules?

Why? I was thinking about when the solar improves, I will need different charge schedules/settings and being able to set them up before I need them would be useful, as would having what I used this year as a history.. that could be selected at the same time next year.

admin

SilverArt Yeah, good suggestion, thanks!

This is now available in v0.3.181 - no validation on timeslots is being done for creating schedules in inactive state. Only when saving schedules in active state, will the validation kick in and compare against your other active schedules.

KevinD

Hi,
I'm looking at the " Export Schedule " settings which seem pretty intuitive, but there's one setting I'm unsure about.
As I understand it the " Required SOC " is the minimum percentage your battery must be at to initiate the schedule.
The " Stop Export at " is the battery level where when / if reached the schedule will halt.
It is the " Forecast at Least...kWh " that I'm unsure about. Does it mean that if I put in a figure of 3kWh for example, then it will dynamically adjust the discharge rate to achieve that amount of export in the time period set, or does it mean that it will override the schedule end time to achieve the required export. It seems that if I set a low figure then the schedule would run in the scheduled time period down to the " Stop export at.. " battery level anyway.
It's almost certainly me who's finding this a bit ambiguous and overthinking things, so apologies if I'm missing the blindingly obvious.

admin

KevinD Good questions!

The 'Forecast at least X kWh, is a similar precondition like 'Required SOC'. So only if these two values evaluate to 'true', does the export function trigger.

You could easily game this by dropping the required forecast to be 0 if you want to simply export based on battery SOC only.

Also, the stop value at the moment is being saved but it's not actioned/adjusted for Giv systems currently, but we're working on that.

Hope that makes sense.

KevinD

admin
Sorry, I'm still not getting it. Forecast what at least X kWh ?
This is what I asked:

KevinD It is the " Forecast at Least...kWh " that I'm unsure about. Does it mean that if I put in a figure of 3kWh for example, then it will dynamically adjust the discharge rate to achieve that amount of export in the time period set, or does it mean that it will override the schedule end time to achieve the required export. It seems that if I set a low figure then the schedule would run in the scheduled time period down to the " Stop export at.. " battery level anyway.

I thought I'd test it out a little earlier, here's a screenshot of the error message:
" Offpeak SOC must be between 10 and 100 "
My battery level at the time was about 94% My system can export at 6kWh so the 40 minute export slot is enough to export 3kW

Gazzagreen

OK tried the multiple schedules but in the activity log i have an error as follows....

Any ideas.
My thought maybe the API setting, I just allowed control of the inverter.

admin

Gazzagreen Looks like the charge rate setting cannot be written. The Giv API returns us that error.

I think the restrictions for just the inverter might be insufficient.

As well as inverter details and control, WW needs access to:

https://api.givenergy.cloud/v1/site (to get inverter serial, model, charge rate as well as site lat/long)

And even though settings and presets fall under the inverter path, I'm just wondering whether it is sufficient or not.

To eliminate the issue, you could test this out with your own API key in a tool like Postman.

Put your API key in the Authorization tab, select Bearer Token and paste into the Token input box.

And make sure you replace :serial with your serial number.

Put your max charge power into the body, like so:

And click Send. I'd imagine you would get a similar error message.

Happy to try this on your behalf if you DM us your API key. Cheers!

SilverArt

admin You could easily game this

Not being funny but should it be a design feature... 0 as the default?

admin

SilverArt Yeah makes sense, we’ll default this.

admin

KevinD I think you’ve run into an incorrect validation message in that scenario actually.

The validation shouldn’t kick-in. Try and reload and adjust the settings or recreate. We couldn’t reproduce the issue.

Might be some weird edge case between toggling schedule type etc. We’ll run some more tests.

admin

KevinD The forecast at least requirement is the WW calculated PV output that is expected to be generated tomorrow based on your PV set up, location and weather.

For instance, over summer, you may want to save the battery when you have less than 5kWh yield expected for the next day, rather than export.

So only export when you know you won't be needing the battery as much tomorrow, so at least say 15kWh yield forecast for tomorrow.

It has no bearing on discharge rate. We are working on another mechanism for that.

Sorry for the confusion!

KevinD

admin

Not sure what's happening but I tried to set a scheduled discharge again and am getting the same error.
I'm running Firefox Browser on an M1 MacBook Air. All browser Plugins disabled for this site.
I don't think I'm doing anything esoteric, just filling in the input parameters.

KevinD

admin

The penny has finally dropped! I never associated " Forecast at least xxx kWh " with Solar yield 🤔
Perhaps rewording the label would remove any ambiguity?
A happy New Year to you, excellent suport and feeedback

admin

KevinD Happy New Year to you and yours too!

Yeah perfectly OK to reword it, maybe it requires an additional explanatory description, thanks!

The feedback is invaluable, so keep it coming. We want to improve this service for as many people as possible. Because there really aren’t many good solutions out there, that don’t require tinkering.

admin

KevinD Still can't seem to reproduce it here. Is this a new schedule you created and then are modifying? What happens if you create a new schedule with those values in? Same error?

KevinD

admin
Hello again.
I was modifying the existing " Export Schedule " I have since deleted that schedule and set up a new export schedule which I'm pleased to say has been accepted. It's will be a short test schedule from 17:00 to 17:30.
Many thanks for the excellent support.

EDIT:
Although the Schedule is listed as " Active " it didn't start an export. If I can just check that I'm interpreting the inputs correctly:
Required SOC: The minimum state of charge value of your battery required to trigger and export event
As long as my battery SOC is above this figure then it will start the export. If my existing state of charge is below this figure the export will not proceed .( minor typo - should read " an export event " )
" Forecast at Least ....kWh " is the amount of Solar generation forecast for the next day.
" Stop Export At ....% " stop export if battery SCO reaches this percentage during the export time window. ( Not active yet but will be introduced )

admin

KevinD Great, glad to hear it. We've made a tweak and removed some ambiguous validation messages too, and are adding clearer instructions about what 'Forecast at least' means. Should be available now in v0.3.177.

Thanks!

admin

KevinD Hi - the scheduler that runs, runs on a timer every 4 mins. There are a few database queries that need to be run and whether schedules are valid and due within the next 4 mins to be sent to the inverter.

As such, and because you are testing, it could be that you created the schedule a few mins ahead before it was due (but within the 4-minute cut-off), and the scheduler function had already run and the next one was due after your schedule's time start had passed.

So my suggestion would be to schedule a Start Time say 6 mins or so from now. That should do the trick.