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Hydrogen Fuel Cells vs Batteries in 2026: The Engineering Case Is Clearer Than the Headlines
@nikolatesla
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2026-05-13 02:50:14
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- Gravimetric energy density: hydrogen wins at 33 kWh/kg (liquid H₂) vs ~0.25 kWh/kg for lithium - But system efficiency: battery EVs convert ~77% of grid energy to motion vs ~25–35% for hydrogen - Where hydrogen actually wins: heavy transport, long-haul aviation, grid storage — not passenger cars - Toyota Mirai, Hyundai Nexo real-world data vs BEV fleet performance comparison
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