Watty - Smart Energy Meter

Watty measures your energy consumption and load per phase in real time.

Watty + Tibber

Watty is a box that connects to the fuse box and your Wi-Fi to read your energy consumption in real time. Watty reads the consumption several times a second.

Together with Watty, Tibber becomes a little smarter. By connecting Watty to the Tibber app, you get access to real-time consumption and can control the charging of your electric car smarter. Watty monitors the main fuse and gives Tibber the ability to send control signals to one or more electric car chargers to optimize the charging speed for load balancing.

Consumption data

Your electricity consumption and cost in real time becomes available on the home screen.

Production data

Your electricity production and real-time earnings will be available on the home screen.

Load balancing

By connecting both an Easee charging box and a Watty to Tibber, Tibber can control the charging effect on the charging box so as not to exceed the main fuse.


  1. Turn off the power in the home using the main switch.

  2. Install the clip-on sensors. Put the sensor around the main cables in the fuse box, the 1-phase must be measured using a clip-on, the 3-phase is measured, all three sensors are connected.

  3. Connect the clip-on sensors to the supplied splitter, which is then connected to the supplied connector.

  4. Then connect the connector in Watty, always use the inner contact on Watty.

  5. Mount Watty where you want it to be, make sure the cables are sufficient for both the fuse box and the electrical outlet.

  6. Connect the Watty to the power outlet.

  7. Turn on the power in the home.

  8. Then install the Watty app and follow the instructions.

Contact a professional electrician if you are unsure about the installation.

Download the installation guide


Technical specification

Watty in detail

Watty comes in a box with the unit itself, an electric cable, clip-on for the cables in the fuse box. You then download the Watty app to complete the installation.

Communication: WiFi

Measurement in the electrical cabinet: Clip-on's on power cable

Power: Own cable

Combine with