Cozify HAN

Real-time power, voltage, current, and cumulative consumption from a Cozify HAN reader - a Finnish device that plugs into a smart electricity meter's own HAN/P1 port and exposes its readings over your home network. Add it by IP address alone; the device's own local API needs no credentials at all.

What it reports

• Power import / export - total plus per-phase (L1/L2/L3), in watts, updated every 10 seconds - genuinely real-time, unlike this app's utility-account integrations (Helen/Caruna/Fortum), which only ever update a few times a day.
• Voltage and current per phase.
• Total import and total export - cumulative energy in kWh.

Every reading is read-only - a HAN reader is a passive meter tap, there's nothing to control. Works with Dashboard cards, History, and Automations exactly like any other sensor.