KWh meter setup

The remote display depends on a SSH tunnel on the MTA:

1. File: /etc/systemd/system/kwh-tunnel.service

[Unit] Description=Tunnel to kWh meter. After=network.target

[Service] ExecStart=/usr/bin/ssh -i /etc/kwh-meter-tunnel -l dirkx -p 222 -NT -o ServerAliveInterval=60 -o ExitOnForwardFailure=yes -L 9999:192.168.6.111:80 83.163.200.191 -

RestartSec=30 Restart=always

[Install] WantedBy=multi-user.target