Add meter Solarwatt Manager flex

[PeterFlorian]

Add meter "Solarwatt Manager flex"

This should solve

• Solarwatt Energy Manager in evcc #15896
• Solarwatt Energy Manager #7771

[runtologist]

@PeterFlorian In case you want to take this further:

You can set the SoCRsvMin to block the battery and for (slow) grid charging by posting to http://XXX.XXX.XXX.XXX/rest/items/YYYYYYYYY_battery_SoCRsvMin. The exact URL depends on the inverter or battery plugin used, the manufacturer, model and serial, e.g. http://xxx.xxx.xxx.xxx/rest/items/sunspecnext_battery_KATEK_Memmingen_GmbH_SolBrid_10_3_4_1234567890abcd_battery_SoCRsvMin. That might be hard to implement using only jq though. The id of the battery can be discovered at /rest/things. Look for battery#SoCRsvMin.

The rated capacity of the battery can also be found at /rest/things. Look for WHRtg. I am not sure if it can be set dynamically in evcc?

[PeterFlorian]

Hi @runtologist ,
I'm sorry, but I do not fully understand your comment.
I am new to evcc and it seams this is an advanced feature I do not know right now. So I guess I won't implement it.

Anyway, I had a look at the /rest/items/, but did not find anything like SoCRsvMin or WHRtg. Maybe it's because my battery is a Varta pulse neo and it does not support this feature? I do not know.

[runtologist]

Anyway, I had a look at the /rest/items/, but did not find anything like SoCRsvMin or WHRtg. Maybe it's because my battery is a Varta pulse neo and it does not support this feature? I do not know.

Sounds reasonable. I use a Solarwatt Battery Flex DC charged by a Katek Solbrid inverter. I think the battery control actually is part of the inverter. So far, my evcc directly accesses the inverter via sunspec. I just noticed the same functionality can be controlled through the REST API as well.