Fabrication of NSSS Demonstration Module

Building the NSSS Prototype

Our goal is to create a replicable, mass-manufactured product rather than a bespoke project. By building a true-to-scale demonstration model, we tested and validated our design principles, including the manufacturability of the modular design. A fully modular, factory-fabricated product will optimize the speed of assembly, cost of manufacturing, and mass production capabilities. With our local manufacturing partner, Energoinstal, the nuclear steam supply system (NSSS) prototype was built in under five weeks using all locally sourced materials and labor. 

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Powering our PWR-20

Our fully modular design consists of two primary structures: the nuclear island–a subterranean structure that houses the NSSS and balance-of-plant (BoP). Everything is contained in a single “battery”, optimized for efficiency and space, that is inserted every six years for refueling. The Last Energy PWR-20 total system design is technically unique; however, our NSSS design utilizes decades of industry/operating experience with PWR technology (fuel, materials, equipment, etc.) as a foundation. Our BoP design has its roots in the modular fabrication advancements seen in the oil & gas industries as well as from technology used in similar-sized combined heat and power (CHP) facilities like biomass and gas turbine facilities.

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Poland’s Energy Evolution

Our power plant’s small yet scalable combined heat and power output makes it perfectly suited for industrial customers, enabling us to deliver clean on-site baseload electricity and heat in 24 months, filling a critical gap for heavy energy users as they seek a reliable solution for rapid decarbonization. 

Industrial energy use accounts for a quarter of global greenhouse emissions and Poland’s industrial competitiveness depends on securing a stable supply of cost-competitive power, with many companies and regions struggling to secure adequate power to attract and retain industrial partners.

Poland has emerged as a powerhouse in the fields of manufacturing, supply chain management, development, and industry, showcasing a remarkable blend of strategic advantages and a skilled workforce. With a strong commitment to excellence, the country has solidified its position as a leader in the global marketplace. Poland’s thousands of manufacturing and industrial facilities supply critical inputs across Europe and require clean, reliable, sustainable energy as they grow. 

Polish industry has a clear mandate to decarbonize, and local business owners in the energy sector are excited to take advantage of the new market opportunities presented by the transition to clean energy. Poland is not merely looking to replace the existing energy jobs infrastructure, but to transition the existing supply chain towards the future of clean energy. This was demonstrated with the fabrication of the NSSS prototype displayed at the recent PAIH Business Forum in Warsaw. 

Through our partnership with Energoinstal, this full-scale prototype of our NSSS module, fabricated in under five weeks, showcases the capabilities of the existing Polish manufacturing supply chain and exemplifies a blend of global vision and local execution. Not only does this prototype affirm the viability of our design, but it also underscores our commitment to leveraging local talent, resources, and expertise.
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