Solar Hydrogen Challenge

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Alkaline Electrolyzer Sourcing

  • 1kg/hr system takes a 60kW PV system for the magical 60kWhr/kg yield. But - separating membrane there can be $5-10k. Costs $40k.
    • This system produces 60 tons over lifetime - or $120k worth of hydrogen - or ROI=3x.
  • Make your own plates - nickel coating mild steel - 50 lb nickel for 1 kg/hr - and 200 lb salts. Cost several hundred dollars for 1 kg/hr.
  • For 10kg/hr - cost is about $150k capex, so if this gives 60k hours or 600k kg (600 tons) - return is $1.2M at $150k capex, closer to 10x ROI. [1]

Hydrogen Booster Sourcing

500 Bar Tanks

Hydrogen Engine Conversion