Should I create two sun-monitor devices when I have PV panels in two orientations, e.g NO and ZW?
In that case, can I someway add the two devises together?
Connecting two or more inverters to a single electricity meter (e.g., HomeWizard) works perfectly. An added benefit is that an electricity meter provides much better data than an inverter. Three arrays are set up this way at my mother’s place. The forecasting is impressive.
@Gruijter Using the (just added) solar panel device and settings:
The result is:
Maybe this behaviour is intended, but it seems the year start value is used for both the year and month reported values. Both ‘month start’ en ‘year start’ values are added manually after creating the device.
As of August 1st, Zonneplan is also switching from hourly to 15-minute rates. Naturally, I’ll just set up a 15-minute rate device. But can I continue using the same hourly flow cards? Or do I have to convert everything to period flow cards?
Depends what you want to achieve. You can keep the existing 60m DAP device and flows. But prices will be averaged per hour.
If you want to optimally use the 15 minute prices you need to create a new DAP15 device and new flows.
edit: I was on an old version that caused some issues when moving to 15 minute rates, didn’t realize that. Solved after updating.
@Gruijter I have a weird bug in the Power by the Hour app Version v8.4.1 TEST. When I use the “Provide prices JSON for This day” card it sometimes gives me all the same values. For example at this moment the output is:
[0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381,0.3381]
Even though the preview shows:
{'0':0.2747,'1':0.2678,'2':0.261,'3':0.2606,'4':0.2672,'5':0.2721,'6':0.272,'7':0.2678,'8':0.2625,'9':0.2516,'10':0.2409,'11':0.2317,'12':0.20,'13':0.15,'14':0.12,'15':0.11,'16':0.12,'17':0.20,'18':0.2772,'19':0.2927,'20':0.3052,'21':0.2944,'22':0.2856,'23':0.2725}
The weird thing, this is not always the case. sometimes it works just fine.
The card “Provide prices JSON for tomorrow” works just fine. Current output using the same method:
[0.3424,0.3356,0.3277,0.3276,0.3281,0.337,0.3468,0.3465,0.3369,0.3196,0.2984,0.2491,0.2024,0.1736,0.1736,0.2008,0.2598,0.2941,0.3075,0.3461,0.3673,0.3838,0.3778,0.357]
Any idea?
The “preview” uses sample data in general AFAIK.
Ah, I did not know that. Still the data that gets delivered in the tag is incorrect. I am sure it should not be a flat “0.3381” 
Hi all,
I’m trying to set-up a small battery for a “nul op de meter” deployment. With flows (manually building one) seems to be hit or miss when it’s charging. It will only get worse if i introduce an extra battery…
I’ve found this app and it seems it can do it for me (smoothing one or two batteries). I think it’s called XOM? But i don’t understand how it works and how to implement in in flows?
Would anyone care to let me know if i can do it with this app and how or where to look/read?? 
My Homey is from 2019 and i’ve added the Zendure SolarFlow 800 Plus to Homey already.
Thanks!
