- The plant produces 1,600 tonnes of green hydrogen annually, reducing CO2 emissions by 25,000 tonnes.
- The 10MW electrolysis unit was created by Plug Power.
- The EUR 22 million plant will replace natural gas-based production.
- Similar plants are planned for Bratislava and Rijeka, with Rijeka starting in 2026.
Green Hydrogen Production
At the Százhalombatta refinery, a new 10 megawatt green hydrogen plant has begun operations. This facility, the largest of its kind in Central and Eastern Europe, produces 1,600 tonnes of carbon-neutral green hydrogen annually. This production reduces the Danube Refinery's carbon dioxide emissions by 25,000 tonnes, equivalent to the annual emissions of approximately 5,400 cars.
Technological Implementation
The plant features a 10 megawatt electrolysis unit developed by Plug Power. The setup process included pressure tests, inspection of the process control system, integration of electrolytic cells, and activation of the water treatment system. Plug Power's technology uses renewable electricity to split water into hydrogen and oxygen, generating no polluting by-products and producing 8-9 tonnes of pure oxygen per tonne of hydrogen.
Future Plans
The EUR 22 million investment in the Százhalombatta plant is part of a broader strategy to transition to green energy. The new technology will gradually replace the current natural gas-based production process, which accounts for one-sixth of the company's total carbon dioxide emissions. Similar plants are planned for Bratislava and Rijeka, with the latter expected to commence operations in 2026.
