Our foundation: acciona.org Initiatives we support Our strategy Sustainable Development Goals Climate emergency Social development Sustainability indices Sustainable Development Alliances Technology and innovation centres Open and collaborative innovation Digital hub Innovation projects Job offers Graduates and internships Opportunities and inclusion Safety, health and well-being Training Energy Transport Water Social Cities Real Estate Financial Integrated annual report Annual accounts Results, reports & presentations Average period of payment to suppliers Ratings Share price Dividends Analyst opinions Investor calendar General Shareholders' Meeting Board of Directors and Committees Management team Share capital Annual Corporate Governance Report Director remuneration Governance rules and compliance Framework Agreement CNMV Communications Sustainable finance
Environment Transport 08 JUN 2026
  • A hydrogen generator is powering a tower crane used to manufacture concrete caissons

ACCIONA is testing a high-capacity hydrogen-powered electric generator at the North Terminal works at the Port of Valencia to reduce emissions and replace fossil fuels in construction machinery. The initiative, already operational on site, will continue in the validation phase until mid-June.

The equipment, developed by French company INOCEL, is based on a 200 kW hydrogen fuel cell and is being used to supply power to a tower crane involved in the KUGIRA caisson dock operations, which are focused on manufacturing the project’s concrete caissons.

In this type of environment, where access to the power grid is not always available, the usual solution would have been to use a diesel generator. However, using diesel would involve high fuel consumption and the emission of around 80 metric tons of CO₂ equivalent during the test period.

What makes this initiative particularly innovative is the equipment’s power capacity, which makes it possible to test hydrogen technology in construction machinery with high energy requirements. This solution opens the door to new alternatives for reducing the use of conventional fuels, especially at sites without a direct connection to the power grid.

The initiative marks progress in the deployment of zero-emission technologies in real-world construction environments and contributes to the decarbonization of ACCIONA’s operations. It is part of the company’s efforts to incorporate innovative energy solutions that help reduce the use of conventional fuels on construction sites and further advance that transition.