[dfworks]

As I understand Slough and West London more broadly are a sweet spot for both connectivity to international fibre cables as they come out of the ground and available electricity at a reasonable rate (although they might have saturated that particular aspect if the article is true). Slough trading estate has a dedicated Biomass Power Station.

With less confidence, I vaguely remember a discussion with a datacentre technician at one of these sites who said something about the curvature of the cabling which can impact latency/speed for high frequency trading outfits located in the datacentres. I'm not sure in which direction this would worsen but perhaps another factor.