Solar-powered system supports Section 82 river monitoring

Endress+Hauser has developed a solar-powered river monitoring solution to help water companies meet Section 82 requirements under the Environment Act 2021.

The legislation requires continuous monitoring of water quality upstream and downstream of storm overflows and treatment works. The system is designed for remote locations without mains power, enabling continuous measurement of key parameters including pH, turbidity, dissolved oxygen, temperature, ammonia and conductivity, with secure data transmission to operators.

Combining field instrumentation with solar energy management and battery storage, the system is designed for year-round autonomous operation. Under normal conditions, data is transmitted hourly, increasing to 15-minute intervals during abnormal events to support rapid detection of pollution incidents.

A direct immersion floating sensor assembly removes the need for pumped sampling, reducing the risk of blockages and lowering maintenance requirements. An integrated compressed air cleaning system helps maintain measurement stability in challenging river environments.

The system is currently undergoing national trials led by the Water Research Centre (WRC).

“We are very encouraged by the findings from our internal testing programme and preliminary results from external trials,” said Ipek Temizel, Water and Wastewater Industry Manager at Endress+Hauser UK. “This solution will offer real benefit to water companies seeking Section 82 compliance.”

Endress+Hauser also provides UK-wide service and calibration support through its network of engineers.

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