HS2’s main contractor, Skanska Costain STRABAG (SCS JV), successfully trials for two zero-emissions hydrogen fuel cell-based electricity generators to help reduce carbon and improve air quality.
The two GeoPura 250kVA hydrogen power units (HPUs) were trialled over the last year at HS2’s Victoria Road Crossover Box in Ealing as a direct replacement for diesel generators to power machinery on the site.
Tested and commissioned on site in August 2021 by HS2’s mains work civils contractor Skanska Costain STRABAG (SCS JV), the trial shows that the products can produce the required energy to power equipment needed for site operations.
The hydrogen power units provide 100% renewable and emission-free power derived from a hydrogen fuel cell, with power capabilities ranging from 20kW to 2MW. They use 100% green hydrogen produced from renewable energy. Data from the trial showed that running the units for 400 hours eliminated around 51 tonnes of carbon compared to standard diesel generators.
They are also quieter than standard diesel generators; the only emission is water, which is so clean it’s drinkable. A hydrogen tube trailer and hydrogen canisters were used to fuel the generator.
“With no harmful pollutants, the technology brings major air quality benefits to the workforce and local communities around construction sites, something which is vitally important to HS2 across the whole project,” says HS2’s Air Quality Manager, Andrea Davidson.
The trial, supported by HS2’s innovation programme, has already gained industry recognition, picking up the ‘Best Use of Technology Award’ at this year’s Construction News Awards.
Source: © High Speed Two Ltd 2022
Image Source: © High Speed Two Ltd 2022
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