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Saturday, June 13, 2026
LPP Fusion — Technical Profile & Analysis
Deep-dive assessment of the Dense Plasma Focus architecture, fuel path, and market positioning.
Technology Assessment & Commercial Milestones
Magneto-Inertial, Pulsed & Alternative Cores
Pulsed compression schemes that explicitly avoid massive static superconducting magnets, prioritising upfront-capex reductions and modular replicability.
Reactor design
Dense Plasma Focus
Core tech focus
p-¹¹B aneutronic dense-plasma focus
Key milestones
Multi-decade DPF research lineage.
Dense plasma focus targeting p-¹¹B aneutronic — one of the smallest device footprints in the entire industry, betting that compactness alone resolves the LCOE problem.
FRC, MTF, sheared-flow Z-pinch and levitated dipole topologies. Helion's magneto-inertial FRC bypasses the thermal steam cycle entirely — plasma magnetic energy directly induces electricity in surrounding coils on expansion. TAE's continuous beam-driven FRC targets p-¹¹B, demanding triple products on the order of 10²⁴–10²⁵ keV·s·m⁻³.
- Pulsed-rep-rate engineering: sustaining 1–10 Hz operation with millisecond-scale energy recovery.
- For aneutronic FRC (TAE), bremsstrahlung scales as Pbrems ∝ Tₑ^½, capping Pfus/Pbrems at ~0.2–0.3 without non-thermal ion distributions.
- For MTF (General Fusion), liquid-metal vortex stability under pneumatic shock and synchronisation of dozens of pistons.
- For sheared-flow Z-pinch (Zap), maintaining kink-stability at commercial pulse repetition rates.
- Elimination of large superconducting magnet assemblies removes the single largest capex line in tokamaks.
- Direct-conversion architectures bypass the 35–40% Rankine/Brayton thermodynamic ceiling, pushing net plant efficiency past 60–70%.
- Liquid-metal first-walls (General Fusion) eliminate first-wall replacement cycles entirely.
Helion holds the industry's singular commercial benchmark — a binding Microsoft 50 MW PPA for 2028. D-³He fuel and direct induction allow compact, high-rep-rate modules suited to hyperscaler data-centre siting. General Fusion offers radical mechanical simplicity by replacing lasers and brittle superconductors with pistons, solving the neutron-wall problem via a rotating liquid-lithium barrier. Zap has demonstrated 1.6 GPa plasma pressure, suggesting magnet-free architectures may be the lowest-capex route.
Sourced from the 2026 Global Fusion Energy Comparison — triple-product physics, DEC architecture, and LCOE framework.
Who built LPP Fusion
Eric Lerner has stood as one of the most prominent, independent alternative voices in the global fusion landscape for decades. As the founder and chief scientist of Lawrenceville Plasma Physics (LPP Fusion), Lerner rejected mainstream magnetic confinement approaches in favor of an extraordinarily compact, low-cost system: the Dense Plasma Focus (DPF). Utilizing unique, self-organizing plasma instabilities instead of fighting against them, Lerner's lean, physics-first approach aims to achieve the multi-billion-degree temperatures required to extract clean energy directly from a hydrogen-boron (p-11B) fuel cycle.
Eric Lerner
BA in Physics, Columbia University; graduate research, University of Maryland
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