Spotted: Globally, water scarcity is a growing problem. According to some estimates, demand for water could exceed supply by 40 per cent as soon as the year 2030. At the same time, a typical 300-room hotel will use nearly 200 gallons per room a day, with the bulk of that coming from the bathroom.

To encourage hotel guests to use less water, startup Shower Stream has developed a device that attaches easily to the shower head and connects to Wi-Fi for collecting water usage, temperature, and pressure data in real time. Guests turn on the shower as usual and, when the water has reached a desired temperature, the device will pause water flow and restart it at the same temperature once the motion sensors detect the guest has entered the shower.

Not only does the device lower water costs for the hotel, but it also provides monthly reporting of energy and water data that helps hotel operators identify potential maintenance issues before they become expensive. The data collected also helps hotels apply for local rebates and incentives that act as additional revenue streams.

According to Shower Stream, the device averages water and energy savings of around $30,000 (around €28,000) per hotel. The technology is also low-cost, at around $5 (around €4.67) per unit and $10 (around €9.34) per month for the advanced analytics. This device is attracting the attention of a number of hotel chains and investors, with Shower Stream already installed in properties belonging to Hyatt Hotels, Global Hotel Group, Extended Stay America, and more.

Hotels are not the only ones concerned with water savings. Springwise has recently spotted a number of innovations aimed at reducing water use. These include a water-recycling shower and sustainable laundry service.

Written By: Lisa Magloff