Answer a few questions and get a ready-to-use configuration. No experience required — every option is explained as you go, and a live preview updates while you type.
Marstek balcony batteries decide when to charge or discharge by listening to a power meter on your home's grid connection. AstraMeter pretends to be that meter: it reads your real grid power from a source you already have (a Shelly, Home Assistant, an MQTT topic, a smart-meter reader, …) and reports it to the battery in the exact format it expects.
This tool writes the configuration file that tells AstraMeter which meter to impersonate and where to read your real power from. Pick how you'll run it, point it at your meter, and copy the result.
AstraMeter