Free tool

Hydrogen cost calculator

Work out the levelised cost (LCOH) of your renewable hydrogen plant and see where every euro comes from. Change the figures and the result updates instantly.

The plant

Electrolyser capacity

Specific consumption

kWh/kg

Alkaline 50-55, PEM 52-58 kWh per kilo of hydrogen.

Operating hours per year

Solar only: 1,500-2,200. With wind or grid: 4,000-8,000.

Yearly performance loss

The investment

Investment per kW installed

€/kW

Electrolyser and balance of plant: €1,200-2,500/kW depending on size and technology.

Yearly maintenance

As a share of the investment. Typically between 2 % and 4 %.

Project lifetime

Cost of capital (WACC)

Investment grant

Share of the investment covered by a grant.

Energy and water

Electricity price

€/MWh

Water price

€/m³

About 9 litres of demineralised water are needed per kilo of hydrogen.

Cost of hydrogen — € / per kilo

Yearly production: — tonnes of H2
Total investment: —

Where the cost comes from

Investment —
Maintenance —
Electricity —
Water —

What happens if the electricity price changes

Hydrogen cost (€/kg) against the electricity price, with everything else unchanged.

€/MWh	20	40	60	80	100
€/kg	—	—	—	—	—

This is a ballpark estimate, not a feasibility study. We do not store the figures you type here.

Calculated on atlanthy.com on 3 October 2026

Do the numbers work for you?

We can email you this calculation with our comments and, if you like, go through it together on a call.