Blykalla develops the Swedish Advanced Lead Reactor (SEALER), a 55 MW lead‑cooled small modular reactor that provides clean, dispatchable baseload power in a compact 5 × 5 m factory‑produced unit. Its low‑pressure, lead‑coolant system offers passive, walk‑away safety and corrosion‑resistant materials, enabling rapid, modular deployment for utilities and industrial users needing reliable electricity, high‑temperature heat, hydrogen, or desalination capacity.
Funding
Funding not disclosed
EAFounders
Product
Problem
Current baseload power generation relies heavily on large, centralized fossil‑fuel plants and traditional nuclear reactors that are costly, have long construction times, and require extensive infrastructure, limiting the ability to quickly decarbonize industrial processes and meet growing electricity demand.
Solution
Blykalla is developing the Swedish Advanced Lead Reactor (SEALER), a 55 MW lead‑cooled small modular reactor (SMR) that delivers clean, reliable baseload power in a compact 5 × 5 m footprint. The reactor uses a low‑pressure, lead coolant system that provides inherent radiation shielding and passive safety through natural convection, eliminating the need for active cooling systems. Proprietary aluminium‑alloyed steels prevent corrosion of reactor components, enabling long‑term operation with uranium‑nitride fuel that offers higher density and extended core life. SEALER units are factory‑produced and modular, allowing serial manufacturing, rapid site deployment, and scaling of capacity as demand grows. The technology targets hard‑to‑abate sectors such as industrial heat, hydrogen production, water desalination, and data‑center power, providing a fossil‑free, dispatchable energy source that can complement intermittent renewables.
Target Audience
Primary customers are utilities, industrial energy users, and large‑scale renewable developers seeking reliable, low‑carbon baseload power for electricity grids, process heat, hydrogen production, and water desalination.
Features
- Lead‑cooled core with natural convection provides passive decay‑heat removal and walk‑away safety
- Patented aluminium‑alloyed steel alloys (cladding, vessel, pump) deliver perfect corrosion resistance in liquid lead
- Compact 5 × 5 m reactor housing 55 MW output and 25‑year fuel residence time using high‑density uranium‑nitride fuel
- Low‑pressure (≈1 atm) system eliminates high‑pressure safety concerns and reduces structural complexity
- Factory‑based serial production of standardized SMR modules shortens construction time and cuts costs by up to 60%
- Modular design enables incremental capacity addition and flexible siting for remote or industrial locations
- Integrated with grid and industrial processes to supply both electricity and high‑temperature heat for hydrogen, desalination, and data‑center cooling