How much electricity does it take to produce 1 kg of hydrogen?

PEM electrolyzers: 50–55 kWh/kg H2. Alkaline: 50–60 kWh/kg H2. SOEC (solid oxide): 35–45 kWh/kg H2 (most efficient). Theoretical minimum is 33 kWh/kg (HHV). Current best-in-class approaches 50 kWh/kg.

What electricity price makes green hydrogen viable?

Hydrogen production needs electricity at $0.02–0.03/kWh to achieve $1–2/kg H2 target (cost-competitive with grey hydrogen). Most renewables produce at $0.03–0.06/kWh, approaching this threshold.

What is electrolyzer stack lifetime?

PEM stacks: 60,000–80,000 hours (7–9 years continuous). Alkaline: 80,000–100,000+ hours. Stack replacement represents $150–300/kW, a significant O&M cost affecting LCOH.

Hydrogen Electrolysis Energy Cost Calculator

Calculate the electricity consumption and cost to produce hydrogen via electrolysis. Model PEM, alkaline, and SOEC electrolyzer efficiency and hydrogen output.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)

σy — Normal Stress Y (MPa)

τxy — Shear Stress (MPa)

⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.

How to Use

Enter the values for the patient or scenario you are assessing. Calculate the electricity consumption and cost to produce hydrogen via electrolysis. Model PEM, alkaline, and SOEC electrolyzer efficiency and hydrogen output. Use the hydrogen electrolysis cost result to inform your clinical assessment.

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Frequently Asked Questions

How much electricity does it take to produce 1 kg of hydrogen?

What electricity price makes green hydrogen viable?

What is electrolyzer stack lifetime?