I want to enable HA to switch my heat pump from special lower grid tariff to PV powered mode.
I plan using a 3 phase USV (to secure power continuity) combined with a 4 pole transfer switch - 2 inputs (Grid or PV) to one output (heatpump).
Is there any transfer switch which I could control from HA directly?
I could image that I could use an industry standard swtich and control it via something like ESPHome, but mabye there is alreay a switch controllable by HA … using zigbee, wifi, z-wave— you name it.
I have an APC AP7723 Automatic Transfer Switch that is controllable via either a webpage of via telnet… There is no integration available for these devices in HA…
I’m also very interested in a way to control and get sensor data from an APC auto transfer switch (specifically ab APC AP7750A). I saw somewhere a version of NUT (Network UPS Tools) that could read SNMP data from the ATS. I assume even if that was an avenue, that would be read-only data. Perhaps something could issue commands over telnet or SSH?
