Valmet’s automation powers Helsinki closer to a clean-energy transition with the world’s largest air-to-water heat pump
Valmet Oyj’s trade press release, December 19, 2025, at 11:00 a.m. EET
Valmet will supply an automation system for Helen Ltd’s Patola air-to-water heat pump plant and two electric boilers currently being built in Helsinki, Finland. When completed, the air-to-water heat pump plant will be the largest in the world with a full heating production capacity around 30 MW. The mission-critical Valmet Distributed Control System (DCS) enables flexible and efficient heat production, thereby reducing CO₂ emissions and bringing Helsinki, the capital of Finland, closer to a clean-energy transition. The system’s precise control of heat pumps and electric boilers also ensures stable heating prices for customers.
”This project strengthens our long-term energy strategy by reinforcing operational performance and helping us deliver reliable, sustainable district heating to our customers far into the future. The Valmet DCS supports a clean-energy transition, enables flexible production, and optimizes the operation of both the heat pump plant and electric boilers for maximum efficiency and responsiveness to heat demand,” says Jari Maaranen, Engineering Manager at Helen Ltd.
”We are proud to deliver the Valmet DCS to our trusted customer Helen, enabling advanced control and monitoring for their electric boilers and large-scale air-to-water heat pump plant - the first of its kind and scale worldwide. This delivery ensures unmatched reliability, efficiency, and scalability. It also supports long-term operational success and lifecycle performance while showcasing how cutting-edge technology can support carbon-neutral energy solutions,” says Tom Bäckman, Senior Sales Manager, Automation Solutions business area, Valmet.
Valmet will supply an automation system for Helen Ltd’s Patola air-to-water heat pump plant and two electric boilers currently being built in Helsinki, Finland.
The Patola heating plant will enhance low-emission district heat with a new industrial-scale air-to-water heat pump (~30MW) and two 50 MW electric boilers. Using outdoor air as its heat source and CO₂ as the refrigerant, the heat pump operates efficiently even at -20°C. Together, they will generate over 500 GWh of heat annually, reducing emissions by more than 56,000 tonnes. Production is scheduled to begin in the 2026-2027 heating season.
The order is included in Valmet’s orders received of the fourth quarter 2025. The value of the order will not be disclosed. The delivery will be taken over by the customer in March 2027.
Delivery’s technical information
The delivery includes the Valmet Distributed Control System (DCS) for monitoring and controlling the power plant’s air-to-water heat pump and two electric boilers. The delivery also includes the web-based Valmet DNAe User Interface, which provides intuitive and remote access to plant operations.
Valmet offers automation and energy management solutions for heat pump plants, ensuring efficient, reliable, and sustainable operations. Valmet DNA integrates heat pumps, electric boilers, and thermal storage, balancing supply and demand and supporting grid stability.
About the customer
Helen Ltd. serves 600,000 customers in Finland, providing electricity, heating, and cooling, as well as solutions for regional and renewable energy and electric transport. Committed to sustainability, Helen is systematically reducing emissions with the goal of phasing out combustion-based energy production by 2040.
VALMET
Corporate Communications
For further information, please contact:
Tom Bäckman, Senior Sales Manager, Automation Solutions business area, Valmet, tel. +358 50 317 4355
Valmet is a global technology leader serving process industries. We work together with our customers throughout the entire lifecycle, delivering cutting-edge technologies and services as well as mission-critical automation and flow control solutions. Backed by more than 225 years of industrial experience and a global team of over 19,000 professionals close to customers, we are uniquely positioned to transform industries toward a regenerative tomorrow.
In 2024, Valmet’s net sales totaled approximately EUR 5.4 billion. Our head office is in Espoo, Finland, and we have experts in approximately 40 countries around the world. Valmet’s shares are listed on Nasdaq Helsinki.
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