78 GW Nuclear Construction Boost Tightens Uranium Supply, Benefits NexGen Energy
Seventy-eight gigawatts of nuclear reactor capacity are under construction across 15 countries, with global installed capacity at 420 GW, while 38 nations signed commitments to triple capacity to 1,200 GW by 2050. NexGen Energy is among five uranium developers positioned to capitalize on the resulting fuel supply squeeze.
1. Global Reactor Construction
Global nuclear reactor capacity reached 420 GW and 78 GW is currently under construction in 15 countries as of April 2026, reflecting the largest building spree since the sector’s mid-century expansion. New construction starts totaled over 12 GW in 2025, underscoring accelerating capital deployment into nuclear infrastructure.
2. Sovereign Fuel Commitments
In March at the Paris Nuclear Energy Summit, 38 nations signed on to triple global nuclear capacity from 420 GW to 1,200 GW by 2050, locking in sovereign uranium supply commitments that will tighten the market over decades. The World Nuclear Association projects capacity could climb to 1,446 GW by 2050, amplifying long-term demand for fuel.
3. NexGen Energy Positioning
NexGen Energy stands among five leading uranium developers—alongside Eagle Nuclear Energy, Cameco, Uranium Energy and Denison Mines—best positioned to benefit from the tightening uranium market due to its advanced project pipeline and existing permits. This positioning could offer asymmetric upside as global capital rotates toward companies with active construction timelines and permitted sites.