With whatwatt you can know your energy consumption in real time – and optimize it. All you need is a small device – whatwatt Go – that you can connect to the various Smart Meters available on the Swiss market.

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whatwatt Go connects to the customer interfaces P1, M-Bus, UART/TTL, Kamstrup Omnipower HAN, and RS232/MEP – with the same device. It is powered directly via the smart meter. To improve Wi-Fi transmission in the basement or when operating with a LAN cable, an external USB-C power adapter can also be connected. Additional interfaces include: an optional external wifi antenna to improve wifi coverage, an SD-Card slot and a LAN port.  whatwatt Go installation options: DIN/Rail, wall-mount, or magnet.

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The top priority we had while developing whatwatt was to avoid support cases. Thanks to the mobile Apps, whatwatt can be installed in a matter of minutes. The energy consumption data visualization is user-friendly and tailored to Swiss consumers.  Whatwatt interfaces to smart home systems such as myStrom, Solar Manager, Home Assistant, and Loxone. It has a local interface (MQTT/REST) for integrating HEMS systems. For connecting other applications, an OAuth 2.0 authorization can be performed, and the data is provided via the MQTT cloud interface.

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whatwatt is the ideal complement for vZEV installations because the data is available in real time. Every vZEV participant always knows whether affordable, locally produced solar power is available and can adjust their consumption habits accordingly.

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whatwatt is a Swiss innovation.
Made for Switzerland.