U.S. Approves Laser Upgrade to Boost Nuclear Stockpile Modernization

The National Nuclear Security Administration fast-tracks a critical project to increase laser energy at the National Ignition Facility.

Apr. 14, 2026 at 5:48am

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The U.S. Department of Energy and National Nuclear Security Administration have approved a project to upgrade the laser energy capabilities at the National Ignition Facility at Lawrence Livermore National Laboratory. This Enhanced Fusion Yield Capability project will raise the peak recurring laser energy from 2.2 to 2.6 megajoules, significantly increasing fusion yields to support the modernization of the nation's nuclear weapons stockpile.

Why it matters

The increased laser energy will provide more relevant conditions to assess and modernize the U.S. nuclear deterrent, building on the historic achievement of fusion ignition at NIF in 2022. This strategic investment aims to ensure NIF remains a cornerstone of the nation's high-energy-density and fusion-science research for years to come.

The details

The Enhanced Fusion Yield Capability project was expedited by regulatory changes made in 2025 that eased construction project burdens at national labs. The upgrade will enable NIF to raise its peak recurring laser energy from 2.2 to 2.6 megajoules, significantly increasing fusion yields. This is a critical enhancement to support NNSA's nuclear stockpile modernization mission.

  • In 2022, NIF became the first laboratory to achieve fusion ignition.
  • In March 2025, U.S. Secretary of Energy Chris Wright made key regulatory changes to ease construction project burdens at national labs.
  • For fiscal year 2026, Congress appropriated $26 million to begin the next phase of the NIF upgrade project.

The players

National Nuclear Security Administration (NNSA)

A semi-autonomous agency within the U.S. Department of Energy responsible for the management and security of the nation's nuclear weapons, nuclear nonproliferation, and naval reactor programs.

Lawrence Livermore National Laboratory (LLNL)

A federal research facility located in Livermore, California, that conducts research and development in energy, environment, biosciences, space, and national security, including the operation of the National Ignition Facility.

Chris Wright

The U.S. Secretary of Energy who made key regulatory changes in 2025 to ease construction project burdens at national labs.

Brandon Williams

The NNSA Administrator who stated that the United States holds a decisive scientific advantage over adversaries and that efforts like NIF demonstrate America's leadership.

Kim Budil

The Director of Lawrence Livermore National Laboratory, who expressed excitement to work with NNSA to enhance NIF's capabilities to support critical national security missions.

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What they’re saying

“The United States holds a decisive scientific advantage over our adversaries. Thanks to President Trump and Secretary Wright, we are restoring common sense to policymaking, cutting unnecessary bureaucracy, and accelerating the modernization of our nuclear stockpile. Efforts like NIF demonstrate that America leads the world, and this project will further strengthen our understanding and confidence in our nuclear deterrent.”

— Brandon Williams, NNSA Administrator

“Building on the historic achievement of fusion ignition, we are excited to work with NNSA to enhance NIF's capabilities to support our critical national security missions. This strategic investment will expand the regimes that are accessible at NIF and ensure it will remain a cornerstone of the nation's high-energy-density and fusion-science communities for many years to come.”

— Kim Budil, LLNL Director

What’s next

LLNL is moving to develop a long-lead procurement package and advance the next steps toward final design and approval of the project baseline.

The takeaway

This laser upgrade project at the National Ignition Facility represents a strategic investment to strengthen the U.S. nuclear deterrent and maintain America's scientific leadership, building on the landmark achievement of fusion ignition and enabling expanded research capabilities for years to come.