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Saturday, June 13, 2026
Pranos Fusion — Technical Profile & Analysis
Deep-dive assessment of the Tokamak architecture, fuel path, and market positioning.
Technology Assessment & Commercial Milestones
Tokamak & Spherical Tokamak Vanguard
Most mature dataset in fusion. HTS REBCO magnets shrink reactor volume; D-T cycle exploits the highest nuclear cross-section at the lowest temperatures.
Reactor design
Magnetic / Tokamak
Core tech focus
Sovereign domestic HTS manufacturing
Key milestones
Closed seed funding 2024.
India's vertically integrated sovereign-HTS play. Designed around supply-chain independence rather than a single-shot physics breakthrough.
Targets nTτE ≳ 3×10²¹ keV·s·m⁻³ at T ≈ 10–20 keV — the D-T breakeven envelope. REBCO-enabled compact tokamaks operate at 20 K and reach > 20 T toroidal fields, replicating ITER-class confinement at ~1/40th the volume. Spherical variants drop aspect ratio to A ≈ 2.0 to maximise plasma β at lower absolute fields.
- 14.1 MeV neutron flux degrades RAFM steel and tungsten armor above ~80 dpa, forcing periodic first-wall replacement.
- Achieving a Tritium Breeding Ratio > 1.0 in compact geometry — especially on space-constrained spherical-tokamak center-posts — is unresolved.
- REBCO tape suffers irreversible critical-current loss above 0.4% tensile strain; > 30 T fields generate GPa-class Lorentz forces requiring MP35N superalloy substrates and carbon-fiber cocoons.
- Sudden plasma disruptions vaporise plasma-facing components — repair downtime is the single dominant LCOE variable per ARPA-E pyFECONs.
- Disruption-driven capacity-factor losses (AI digital-twin control projected to cut NOAK LCOE 17–20%).
- ⁶Li enrichment supply chain: ~100 t per plant at $5,000/kg can hit 80% of overnight capital cost.
- Balance-of-plant (steam turbine, heat exchangers, cooling towers) dominates D-T capex.
CFS and Energy Singularity are in a direct capital-and-engineering race to validate the compact HTS tokamak concept; CFS leads on global funding, Energy Singularity on localised supply-chain momentum. Kronos and ENN diverge sharply by pursuing spherical geometry to enable high-β aneutronic cycles that delete the steam plant entirely — accepting harder physics in exchange for a streamlined balance-of-plant.
Sourced from the 2026 Global Fusion Energy Comparison — triple-product physics, DEC architecture, and LCOE framework.
Who built Pranos Fusion
Shaurya Kaushal and Roshan George established Pranos Fusion to position India at the forefront of the global private fusion movement. Combining backgrounds in high-performance computational modeling and nuclear material sciences, the duo is developing specialized, highly optimized magnetic confinement systems. Their core philosophy focuses on leveraging India's rapidly expanding advanced manufacturing supply chain and elite software engineering talent pool to design cost-effective, high-efficiency fusion sub-systems.
Shaurya Kaushal
Advanced computational engineering analyst
Roshan George
Nuclear systems material specialist
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