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Make your electricity smarter – now with Shelly!

Make your home and property smarter – Cozify HAN and Shelly now together.

Energy consumption management has reached a new level. The direct compatibility of the Cozify HAN device with Shelly products brings real-time control and automation within everyone's reach – easily and safely. 

Why is this significant?

Cozify HAN and Shelly

  • Immediate savings: Shelly devices utilise the real-time phase-specific measurement data from the Cozify HAN. This allows for automatic optimisation of electricity consumption – reducing power costs and lowering peak power requirements, resulting in significant savings.
  • Safety: Shelly can cut or connect the power immediately when an overload is detected in a phase. This prevents overloads automatically, ensuring the safe use of electrical devices.
  • Easy setup: Newer Shelly devices quickly and reliably connect to the Cozify HAN data using scripts.
  • Expandability: The same solution works as a standalone system or as an expandable network.

A concrete example

Add a script with Shelly app or with Shelly's desktop web interface when logged in, to do the following:

Shelly monitors the phase-specific values of the Cozify HAN and cuts the power if a main fuse exceeds the set limit -> Power is restored when the value drops to a safe level. This prevents overloads automatically and reduces the need for manual monitoring.

In the same way, peak power charges from electricity grid companies can be managed by controlling phase-specific consumption peaks.

Example script with Shelly Script: The following script illustrates the logical connection: retrieving Cozify HAN measurement data and controlling the Shelly relay based on the limits.


let COZIFY_HAN_URL = "http://USE-YOUR-HAN-IP/meter";
let CHECK_INTERVAL = 10;

function checkCurrent() {
  Shelly.call("HTTP.GET", { url: COZIFY_HAN_URL }, function(res, e) {
    if (res && res.code === 200) {
    let data = JSON.parse(res.body);
    let currents = data.i;
    let maxCurrent = Math.max.apply(null, currents);
    if (maxCurrent > 20) {
      Shelly.call("Switch.Set", { id: 0, on: false });
    } else if (maxCurrent < 10) {
      Shelly.call("Switch.Set", { id: 0, on: true });
    }
 } else {
   print("Error fetching Cozify HAN data:", e);
 }
 });
}

Timer.set(CHECK_INTERVAL * 1000, true, checkCurrent);

Cozify HAN and Shelly skripti


Tip: It is recommended to target control to the critical phase and add delays to prevent unnecessary on/off switching.

Other benefits:

  • Real-time peak shaving: Non-critical loads can be cut during peak times.
  • More precise overload protection: Shelly makes phase-specific decisions, cutting only the critical phase.
  • Clear feedback to the user: Mobile notifications and LED states indicate the reason for switching, reducing confusion. This depends on the features of the Shelly used.
  • Flexibility: The solution is easy to expand to other automation and use cases.

Cozify HAN and Shelly – Save, secure, and automate. With the Cozify HAN and Shelly, you get real-time electricity consumption data, enabling automatic load management, savings, and safety – easily and reliably.

If you want to test the synergy between Cozify HAN and Shelly, start by purchasing Cozify HAN from one of the following places:

 

Thank you for reading!

Share your experiences and feedback at info@cozify.fi

Jukka Talja

Jukka Talja
Cozify, Head of Sales

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