FusionEnergyNews

Europe · Germany · Founded 2019

Marvel Fusion

Inertial confinement — short-pulse laser

Confinement

Inertial

Fuel Cycle

Hydrogen-Boron (p-¹¹B)

Funding

€113M Series B (2024)

Timeline

TBD

Investor brief

Short-pulse laser fusion on nanostructured aneutronic targets

Executive Summary

Marvel Fusion is Europe's leader in short-pulse laser-driven proton-boron inertial fusion. The company is partnering with Colorado State University on a $150M+ laser facility to test nanostructured aneutronic targets at fusion-relevant fluence.

Strategic Thesis

Aneutronic p-¹¹B with picosecond pulses on nanostructured targets bypasses the central-hot-spot ignition problem.

The Problem

Global electricity demand is entering an unprecedented growth phase driven by AI infrastructure, data centers, transport electrification, industrial decarbonization, water desalination, and advanced manufacturing. Solar suffers intermittency, wind capacity-factor variability, natural gas carbon emissions, conventional nuclear cost and deployment speed, and batteries energy-density and duration limits. The world requires a new source of clean, dispatchable baseload energy. Fusion represents the ultimate energy source — the challenge is making it commercially practical.

Picosecond-Pulse p-¹¹B Inertial Fusion

Marvel uses picosecond-class laser pulses on precision-nanostructured p-¹¹B targets to bypass the central-hot-spot ignition problem that has dominated traditional inertial fusion.

Picosecond Laser Driver

Short-pulse laser architecture optimised for nonthermal energy coupling into nanostructured targets.

Nanostructured Targets

Engineered nanostructures enhance laser absorption and produce the energetic ion populations needed to initiate p-¹¹B reactions.

Colorado Laser Facility

Joint $150M+ facility at Colorado State University; ground broken in 2025.

Fuel Strategy

Hydrogen-Boron (p-¹¹B)

Aneutronic operation eliminates first-wall damage and enables direct energy capture.

Product Platform

Marvel/CSU Laser Facility

Major short-pulse laser facility under construction in Colorado.

Energy Conversion

Category

Thermal (Rankine/Brayton)

Neutronicity

Aneutronic

Target efficiency

~35–40% electrical

Ultra-short-pulse laser ignition of p-¹¹B fuel pellets at high repetition rate; alpha-particle energy deposited in a wall and recovered as heat for a conventional steam cycle.

Conversion chain

  1. 1Femtosecond laser pulse on nanostructured p-¹¹B pellet
  2. 2Aneutronic fusion → alpha particles
  3. 3Alphas thermalize in first-wall blanket
  4. 4Steam Rankine cycle → turbine → grid

Keeps the back end conventional (proven steam turbines) while still benefiting from aneutronic fuel: vastly simpler shielding, no tritium breeding, longer materials life.

Economic Vision

Eliminating the breeding blanket and most of the shielding via aneutronic operation collapses balance-of-plant cost; the remaining engineering problem is driver efficiency.

Vision

Bring aneutronic inertial fusion from the lab to the grid.

Mission

Prove p-¹¹B ignition with short-pulse lasers on nanostructured targets.

Engineering Bottlenecks

  • Picosecond laser energy at fusion-relevant fluence
  • Nanostructured target mass production

Milestone Timeline

  1. 2024

    €113M Series B

  2. 2025

    Colorado State University facility broke ground

The description above reflects Marvel Fusion's publicly stated technology goals, roadmap and architecture. Many elements — particularly net-energy gain at scale, advanced fuel cycles, and grid-relevant economics — remain ambitious objectives that have not yet been demonstrated commercially anywhere in the fusion industry. Forward-looking statements should be treated as engineering targets, not certainties.

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Citations & Sources

Academic & financial rigor
  1. [01]

    The Global Fusion Industry in 2025

    Fusion Industry Association · Jul 2025

  2. [02]

    Company disclosures and press releases

    Marvel Fusion

  3. [03]

    Peer-reviewed plasma physics literature

    Journal of Plasma Physics / Nuclear Fusion