Microsoft's decision to pull its anchor AI data centre deal with Nscale highlights the UK power grid, which electricity networks and equipment providers control. The article profiles three companies from a screen that surfaced 26 more. Drax Group, a major UK renewable generator with a market cap of about £2.6 billion, is building over 700MW of battery storage backed by around £500 million of committed capital. Volex, valued at about £1.2 billion, supplies data centre power cables and high-speed connectivity products, including products up to 800 gigabits per second. Invinity Energy Systems, with about £9 million of battery revenue and a £101 million market cap, faces a key risk in securing vanadium raw materials for its flow batteries.
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