The problem we're solving
Containment relocation, not containment removal.
Traditional above-ground containment structures are the single largest cost barrier preventing both large and small modular reactors (SMRs) from achieving economic viability. Containment and related civil works can consume 20–50% of total project capital, demand years of construction by specialized labour, and undermine the factory-built promise of SMRs. Using this logic, every site becomes a custom megaproject.
The industry has already seen the warning signs: high-profile SMR projects have been cancelled after costs escalated far beyond initial estimates, driven largely by containment and construction complexity. Meanwhile, global electricity demand is projected to double by 2045, driven by data centres, electrification, and industrial growth.
The world needs nuclear to scale — and we believe containment is what's holding it back.
NuWells places the reactor deep underground in competent rock, inside a large-diameter engineered wellbore. The rock provides natural shielding; the wellbore provides an engineered, leak-tight, pressure-rated barrier system. Together they replace the concrete dome entirely.
We think of it as putting the genie in the bottle, instead of building the bottle around the genie.
Join Us at Demo Day
We’re taking the stage at Avatar Demo Day in Calgary on November 19th, and you're invited!