Steady Energy, a Finnish company, has announced plans to construct a pilot plant to showcase its innovative Finnish-designed small modular reactor (SMR).
This full-scale model will replicate the operational features of the actual power plant, but instead of nuclear fuel, it will utilize an electric element to generate heat within the reactor capsule. The primary objective is to thoroughly test operational aspects and establish robust supply chains with various manufacturers, paving the way for constructing actual plants.
Strategic Site Selection and Timeline
The pilot plant investment aims to range between EUR15-20 million (USD16-22 million). Steady Energy is currently conducting final evaluations of potential sites, with a decision anticipated by the end of summer. Once Steady Energy determines the site, they will commence detailed planning and construction tendering. After the comprehensive testing phase, the facility will continue to serve valuable purposes for training and research.
Potential Locations for the Pilot Plant
The company is considering several locations for the pilot plant, including the Salmisaari and Huuhanmäki caves in Helsinki and Kuopio, respectively, as well as power plant sites in Lahti. Each location offers unique advantages and will be evaluated based on their suitability for the project’s requirements.
Accelerating the Transition to Emission-Free Heating
Steady Energy, a spin-off from VTT Technical Research Centre of Finland, aims to begin construction of the first operational LDR-50 district heating plant by 2028, with the first unit expected to be operational by 2030. Furthermore, the company has already signed letters of intent with municipal energy companies in Kuopio and Helsinki, signaling a strong demand for their innovative district heating reactors.
Addressing Finland’s Heating Challenges with SMRs
In Finland, more than half of the energy consumed for heating comes from district heating systems, which predominantly rely on fossil fuels, peat, and biomass. Utilities are actively seeking alternative low-emission solutions, and SMRs have emerged as a promising option. A significant milestone was reached in February 2024 when the Finnish Radiation and Nuclear Safety Authority eliminated distance-based safety zones for new nuclear plants, enabling SMRs to be located closer to residential areas.
Transforming Urban Landscapes and Reducing Pollution
By replacing large, polluting power plants with compact, underground SMRs, Steady Energy aims to free up valuable urban land and significantly reduce local air pollution. CEO Tommi Nyman emphasizes the urgency of transitioning away from fossil fuel-based heating, highlighting the environmental benefits of their innovative technology.
The LDR-50: A Safe and Affordable District Heating Solution
The LDR-50 district heating SMR, with a thermal output of 50 MW, has been under development at VTT since 2020. Designed for low-temperature and low-pressure operation, it simplifies technical solutions while meeting stringent safety standards. Steady Energy emphasizes the affordability of their reactors, making them an attractive investment for municipal utilities.
Innovative Passive Safety Features
The LDR-50 reactor module consists of two nested pressure vessels with a water-filled intermediate space. In the event of compromised heat removal, the water in this space boils, creating a passive heat transfer route into the reactor pool. This innovative design eliminates the need for electricity or mechanical moving parts, ensuring reliable cooling and enhancing safety.