Giles joined the NIC in 2019 from Ofwat as part of the leadership team delivering the Future of Regulation Study. He was appointed interim Director of Policy in September 2019 and was made permanent in this position in October 2020. He is a member of the NIC’s Senior Management Team, recently led the NIC’s Rail Needs Assessment and is now leading the baseline assessment for the second national infrastructure assessment.

He was at Ofwat for seven years where his work included leading Ofwat’s sector review into the impact on water customers of the ‘Beast from the East’ sudden freeze and thaw. He ran the review of whether competition should be introduced to residential customers. He was Portfolio Director for the 2014 price review, responsible for transforming the way that Ofwat engaged and categorised price controls.

Previous roles at Ofgem included leading offshore transmission (designing the competitive tendering regime) and seconded national expert at the Australian Competition and Consumers Commission.