May 2, 2021
3 min read
Real Estate

Leverage Energy Recovery Potential with Smart Water IoT Systems

Helping to reduce pollution and increase the energy efficiency on the catering processes and industry.

According to current practices, the industrial water used for cooling compressors in restaurants refrigeration cycles is usually discharged directly with the wastewater. However, its energy can be recovered and reused – for example, to heat domestic water – helping to reduce pollution and increase the energy efficiency on the catering processes and industry.

Droople assessed for a restaurant the potential of such an installation using a complete IoT-based system. The solution includes Droople Smart Flow IoT sensor combined with the Droople Water Intelligence Platform. The solution allows to seamlessly transmit detailed data of the cooling system, such as water flow and temperature, as well as operating parameters of the compressors, in 10-minute intervals via LoRa (low-power wide-area network protocol), using a Multitech GSM gateway. The objective was to evaluate if the amount of heat available from the compressors in operation could be reused for heating water.

water smart sensor ilink gateway cloud laptop dashboard mobile device
Droople's IoT Architecture: complete full-stack, retrofit multi-sensing to monitor and digitize any water point

Smart Water IoT Systems

Offsetting the yearly energy need for hot water production

The analysis of the 2-week datasets shows indeed a high potential for heat recovery from the positive cold compressor, summing up to 4800 kWh yearly. With the yearly requirements for the hot water preparation being around 4000 kWh, reusing the waste heat from the restaurant’s own cooling system has the potential to completely offset the energy needed for domestic hot water!

Today’s technical and data processing capabilities can highly increase the energy efficiency of the catering sector, contributing to energy and water conservation. More and more restaurants owners will be able to swap their traditional boiler-based water heating circuits for modern, highly efficient smart heating & cooling systems of the modern age.

actionable insights

Lombard Odier Group

Droople enables us to monitor our cooling tower in order to prevent further water damages.

Pascal Puidoux

Head of Infrastructure


Let’s learn how exactly smart water systems impact the consumption, conservation and quality of water resources on the planet.

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Helping to reduce pollution and increase the energy efficiency on the catering processes and industry.
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Frequently Asked Questions

What gateway should I choose?

There are several gateways that can be used Wifi, 4G, Ethernet LoRa Gateways. Further “Connectivity” FAQs on our Support page

How do I install the device ?

Once you've unboxed your Droople Package consisting of an iLink & sensor(s) and gateway, (1) retrofit the sensor to the consumable. (2) Retrofit the sensor to the inline pipe, (3) Turn on your gateway, (4) Scan to configure your Droople iLink, and (5) Activate by pulling the iLink ticket. Visit the Droople Support page to access the DIY videos and a Quick Start Guidebased on your product.

How do I configure my device on the platform ?

Each Droople iLink has a unique QR Code. Scanning takes you to configure it to a new or existing "asset". After configuration and use of your tap, you already have access to your metrics. For detailed instructions, you can find videos and tutorials on our Support page:

Where do I find support documents ?

Our Support page can be found here
Our Technical Specifications here.

Who can I contact when I need help?

Feel free to email for any questions or feedback.

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