Can Smart Meters Plug Europe's Water Crisis?

Zenner unveils LoRaWAN metering and acoustic leak detection at IFAT Munich as EU utilities race to cut water loss 

29 Apr 2026

Every fourth litre of water that a European utility treats, pumps, and pressurises disappears before reaching a tap. This is not a natural law. It is a management failure, one that smart-metering firms have long promised to fix. At IFAT Munich, which opens on May 4th, Zenner will make its bid to do exactly that.

The Stuttgart-based company will showcase its Smart Water Rollout, a system that strings together ultrasonic water meters, acoustic sensors, and a cloud analytics platform called B.One. The idea is straightforward: give utilities a continuous view of their pipes rather than an occasional manual inspection. When sensors detect the sound of water escaping under pressure, an alert goes out. Repair crews arrive sooner. Losses fall.

The acoustic sensors come from a partnership with Fast, whose mobile loggers are now folded into B.One. The meters transmit via LoRaWAN and Wireless M-Bus simultaneously, a hedge against the patchy connectivity that haunts older urban networks. Zenner already operates what it describes as one of the world's largest LoRaWAN networks, with over ten million sensors active across fifteen countries and more than 450 completed utility projects. That is a credible base from which to pitch.

Yet the company's more revealing offering may be a financial one. Smaller municipal utilities across Europe have resisted smart-metering upgrades not because the technology is unconvincing, but because capital budgets are tight and the case for upfront investment is hard to make politically. Zenner's Metering as a Service model turns the purchase into a managed fee, removing the need for a large initial commitment. Whether that arrangement proves attractive to risk-averse municipal finance officers remains to be seen.

The timing is not accidental. EU rules on drinking-water quality are tightening, and the European Blue Deal is pressing member states to account more rigorously for so-called non-revenue water. Utilities that cannot explain where their output goes face growing regulatory exposure. For those operators, a sensor-linked pipe network is no longer a desirable upgrade. It is becoming a compliance requirement.

The question is not whether Europe's water infrastructure will go digital. It is who captures the market when it does.