Hi everyone,
I’m looking for advice on the best hardware to track my home’s energy consumption with high precision in Home Assistant. My electrician will handle the installation, but I need to provide the smart home components.
The Setup:
- Heat Pump: Next month, I’m getting a Panasonic Monoblock. It requires a 25A and a 16A circuit (Indoor/Outdoor units). I’m unsure if the built-in monitoring is accurate enough.
- Server Rack: Standard 230V. I know the consumption of individual devices, but I want to measure the entire rack’s load.
- Kitchen: I want to track the Oven, Stove, and Refrigerator.
- Air Conditioning: A new AC unit is also being installed.
Current Infrastructure: My cabinet uses Hager components (CDA440D, CDA240C, and MLN 513A C13 breakers).
My Questions:
- Shelly Pro 3EM: I noticed it is rated for 120A. Does this high amperage affect accuracy when measuring smaller loads (like a heat pump peaking at 25A)?
- 2-in-1 Solutions: Is there a way to measure both heat pump circuits (16A/25A) with one device?
- Direct vs. Clamp: For the Server Rack and Kitchen, should I use Shelly Pro 1PM/2PM (direct measurement) or stick to clamps?
- Safety & Reliability: What should I watch out for? Are there specific “fail-safe” products you recommend for heavy loads like an oven?
I’m looking for a clean DIN-rail setup. Any experiences with specific Shelly Pro models or alternative ESPHome-compatible hardware would be greatly appreciated!