Valmet has supplied Neles™ RE segment control valves for electric boilers and district heating accumulators at the Lielahti power plant operated by Tampereen Energia in Tampere, Finland. The valves regulate flow within the electric boiler system and thermal storage units, enabling stable plant operation, efficient heat production, and flexible participation in the electricity market.
The valves were delivered in spring 2025, with commissioning completed in the third quarter of 2025. The electric boiler facility was formally inaugurated at the Lielahti power plant on November 27, 2025. The electric boiler process requires durable components capable of operating reliably under demanding conditions. The control valves play a key role in maintaining accurate process control and ensuring uninterrupted operation, supporting the plant’s transition toward low-emission heat production.
Commenting on the project, Mikko Barck, Sales Manager, Flow Control Business Line at Valmet, said that reliable technology is essential to advancing energy transition projects. He noted that while the control valves represent a small part of the overall system, they are critical to the safe and efficient operation of the electric boiler.
Erkki Suvilampi, Project Operations Manager at Tampereen Energia, said the investment marks an important step toward carbon-neutral district heating. He added that electric boilers and thermal storage increase flexibility by enabling heat generation during periods of low electricity prices and low emissions, and that dependable valve performance is essential to maintaining operational stability.
The Lielahti power plant includes two 50 MW electric boilers and two district heating accumulators with a combined water volume of 20 million litres. The approximately €20 million investment reduces fossil fuel use in Tampere’s district heating system to around three percent and supports the city’s Carbon Neutral Tampere 2030 target. The system allows heat to be generated when wind power availability is high and stored for peak demand periods, improving efficiency and cost control.
Valmet is a global technology and services company that provides solutions for the pulp, paper, and energy industries, as well as process automation and flow control applications. Headquartered in Finland, Valmet supports customers throughout the entire lifecycle of their industrial operations, from new installations and upgrades to ongoing services and digital solutions.
The company is known for its strong focus on innovation, sustainability, and operational performance, helping customers improve productivity, energy efficiency, and environmental performance. With a wide international presence, Valmet serves a broad range of process industries through advanced technologies, automation systems, and a comprehensive global service network.
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