Energy | Green hydrogen

All existing methods of producing hydrogen are either environmentally harmful or lack the technological efficiency. UNIWASTEC has reinvented electrolysis.

Green hydrogen from wastewater or seawater

With our unique, highly sophisticated and patented evaporation electrolysis we produce green hydrogen from liquid waste. We are able to process wastewater, seawater, and process water. 

In terms of technology, efficiency, quality, and price, our green hydrogen solution offers many advantages compared to common methods.

Core Advantages

Unique technology

UNIWASTEC’s unique evaporation electrolysis process is the world’s only technology for the direct production of green hydrogen from wastewater or seawater.

Unmatched efficiency

From wastewater to high-purity green hydrogen (>5.0), UNIWASTEC’s system offers an overall efficiency of >85%. To produce one ton of high-purity hydrogen from wastewater, we only need 39 MWh of green electricity.

High quality

Both hydrogen and oxygen produced by traditional PEM processes are impure and require subsequent gas scrubbing and drying in addition to distilled water as an input. Thanks to its purity (>5.0 / 99.999x%), our green hydrogen is suitable for use in fuel cells and gas turbines without any subsequent treatment. Additionally, the side product, highly pure oxygen, can be used for medical purposes.

Attractive price

Our unmatched efficiency leads to lower electricity demand. With electricity prices remaining the same, we are able to offer our green hydrogen at highly competitive prices.


We are able to produce the products synthetic natural gas, green electricity, synthetic fuel and green hydrogen from the educts waste, used tires, sewage sludge, liquid manure, biomass, and wastewater.

Did you know?


Our evaporation electrolysis supplies high-purity hydrogen as an essential element for the decarbonization of industry, mobility, and energy.

  • Steel industry: direct reduction of iron, blast furnace injection, inert gas atmosphere, etc.
  • Refineries: desulphurization, hydrocracking, hydrogenation, etc.
  • Chemical industry: ammonia production, hydrogenation, isotope separation, etc.
  • Mobility: fuel cell vehicles for road and rail

Our high purity oxygen also finds many areas of application

  • Medicine, pharmaceutical industry
  • Food industry
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