I use Homeassitant there is a hoymiles integration. Over embedded Web you can sho it than on MM.

I see the certifcate error but why the Url to the VW page is correct in the browser there is no error ?

@ottopaulsen great job, but I can not connect to the portal and login. See Error in Log: at Request.plumbing.callback (/home/pi/MagicMirror/modules/MMM-WeConnect/node_modules/request-promise-core/lib/plumbing.js:87:29)
at Request.RP$callback [as _callback] (/home/pi/MagicMirror/modules/MMM-WeConnect/node_modules/request-promise-core/lib/plumbing.js:46:31)
at self.callback (/home/pi/MagicMirror/modules/MMM-WeConnect/node_modules/request/request.js:185:22)
at Request.emit (events.js:182:13)
at Request.onRequestError (/home/pi/MagicMirror/modules/MMM-WeConnect/node_modules/request/request.js:881:8)
at ClientRequest.emit (events.js:182:13)
at TLSSocket.socketErrorListener (_http_client.js:382:9)
at TLSSocket.emit (events.js:182:13)
at emitErrorNT (internal/streams/destroy.js:82:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:50:3)
at process._tickCallback (internal/process/next_tick.js:63:19)
name: ‘RequestError’,
message: ‘Error: unable to verify the first certificate’,
cause:
{ Error: unable to verify the first certificate
at TLSSocket.onConnectSecure (_tls_wrap.js:1055:34)
at TLSSocket.emit (events.js:182:13)
at TLSSocket._finishInit (_tls_wrap.js:635:8) code: ‘UNABLE_TO_VERIFY_LEAF_SIGNATURE’ },
error:
{ Error: unable to verify the first certificate
at TLSSocket.onConnectSecure (_tls_wrap.js:1055:34)
at TLSSocket.emit (events.js:182:13)
at TLSSocket._finishInit (_tls_wrap.js:635:8) code: ‘UNABLE_TO_VERIFY_LEAF_SIGNATURE’ },

Any idea ?