Sustainability Magazine July 2021 | Page 72

ARK DATA CENTRES
historically leveraged diesel generators are in the process of being transitioned to bio-diesel . For every new London facility Ark is committed to eliminating diesel by deploying back-up gas generators proven to run effectively on up to 30 % hydrogen . “ We support the UK ’ s ambition to incrementally increase the hydrogen mix in its utility gas network and we are pushing hard for the tests to be completed which will allow 100 % usage ,” adds Owen .
“ Our campuses are ecologically level and feature green areas where wildlife can coexist . We have eco-toilets on our sites that save thousands of litres of water each year . We ’ ve also extended our typical rainwater harvesting process to capture water from the roof but also from the run-off of the car parks which can then be filtered and stored . It may involve a more intense filtration process but by re-using this water , we only use the mains to top up the rainwater supply as required , significantly reducing our usage .”
Water consumption is a key example where a data centre could either potentially
72 July 2021