10 / 2018

Vexve has developed the first smart valve solution for underground district energy networks


Vexve has developed the first smart valve solution for underground district energy networks

Modern power plants are highly automated and customer meters can be remotely read, but the underground district energy network is still an information black hole.

Vexve's intelligent valve solution, developed to meet the needs of power plants, now provides tools for optimizing the network, improving reliability and enhancing maintenance. The world's first underground smart valves have been successfully piloted at Fortum's district heating network in Espoo, Finland during 2018.

In cooperation with energy companies, Vexve the Finnish leading manufacturer of district energy valves has spent two years to explore the biggest challenges in the management and maintenance of energy distribution networks.

"Our study revealed that the same problems were highlighted, regardless of location or energy plant. At the center of the product development project, there were three clear needs that the new smart valve solution needed to solve: higher network reliability, better network optimization and improved maintenance," says Regional Sales Director Maria Kalli.

The challenging conditions of district energy networks brought special requirements for the development of a new product. Vexve's new smart valve solution operates underground without an external power supply and wirelessly transmits the information to a cloud service. The smart solution can also be retrofitted without any downtime, allowing the new technology to be utilized in existing district energy networks as well.

Smart valves revolutionize control and maintenance of the network

Although unplanned distribution disruptions due to network leakage are rare in Finland (2.4 times/ energy plant/ year), they are expensive because of the slow pace of locating leaks. Up to 90% of detected leaks come from outsiders. With an intelligent valve, the temperature, humidity and network pressure variations can be monitored continuously and leakage points linked to leak detection cables can be quickly located.

Continuous measurement and optimization of the network is important as conditions change constantly with fluctuations in the production and use of energy. Inefficiencies arise in the network for example when running with oversized backup resources in the absence of accurate measurement data from critical branches and network distribution points. Also, adverse changes in flow direction caused by network changes remain undetected without real-time measurements.

With Vexve's smart valve solution, changing network situations are detected in real-time so that network control can be optimally adjusted with accurate measurement data. Optimized network control can bring significant energy savings to energy companies.

Renewal of traditional district energy networks

Vexve DN 400 ball valves were used in the pilot with Fortum, but the intelligent solution is also suitable for valves of all sizes and also retrofits.

"Our new smart solution brings the long-anticipated renewal of traditional district energy networks much closer. During 2018 we have developed a technically functional and sustainable product. Our goal is to launch a solution that energy utilities can fully exploit in the coming year," Maria Kalli decides.

For more information:

Director, Sales and Marketing | Maria Kalli | +358 50 379 1730 |