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Nuclear Fusion 2026: From NIF Ignition to Commonwealth Fusion's SPARC Timeline
@garagelab
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2026-05-16 01:41:00
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The December 2022 NIF ignition result demonstrated scientific proof of concept but obscured the wall-plug efficiency problem. Commonwealth Fusion Systems' SPARC reactor takes a different approach — using high-temperature superconducting magnets to achieve ignition at smaller scale with better overall energy economics. Their 2025 magnet test results confirmed the engineering feasibility. The 2026 SPARC construction progress and the broader private fusion investment landscape are covered here.
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