I wanted to share a project I’ve had working for almost two years now: SolarThing. I’ve been using it to monitor an Outback MATE2 connected to two outback FX inverters and two outback MX charge controllers plus a Renogy Rover charge controller.
SolarThing can be configured to upload to PVOutput every 5 minutes and is made to work with multiple instances of SolarThing running (so you can monitor multiple charge controllers or inverters and have a total for their daily kWh generation)
I also created a Mycroft Skill that is not required to be used with SolarThing and can work with any PVOutput set up: https://github.com/wildmountainfarms/pvoutput-mycroft
If anyone finds this useful and needs help setting any of these things up, I’d be happy to help.