This app will be the officially supported Homey app for SMA devices that are monitored through the Sunny Portal.
It works via a cloud connection, so you need a paid account with SMA. For an average home user this is 12 euro per year. See tariffs here: SMA API price model principles | SMA Developer Portal
To be able to develop the app I need volunteers who are willing to temporarily share their account details with me.
Please let me know if you are willing to do that 
reserved
Hi Robin, it’s me again 
I don’t have a paid supscription, but I can view my Smart Energy inverter via https://ennexos.sunnyportal.com/
(next to a local site).
Or do you mean the SMA API for Homey will be a paid supscription?
My inverter is also connected to HA and Homey via Modbus.
I’m willing to give you access if this system is of any use for you?
If so, which rights does you account need?
Owner or installer?
I can create an account, but you’ll need to DM me your email address for me to send the invitation.
Cheers,
Peet
