Cleaning Up: Leadership in an Age of Climate Change

Can We Stop Data Centres Breaking The Grid? Ep249: Varun Sivaram & Steve Smith

9 snips
Mar 19, 2026
Steve Smith, leader of National Grid Partners driving grid innovation, and Varun Sivaram, founder of Emerald AI focused on grid-friendly AI data centres, discuss how hyperscale compute can adapt to the electricity system. They cover a live trial showing software can throttle and shift GPU loads in seconds, the idea of flexible demand, speed-to-power vs cheap power, and plans to scale this approach commercially.
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INSIGHT

One Data Centre Can Be A Systemic Load

  • Hyperscale AI campuses can reach gigawatt scale, a single site equating to a material fraction of national transmission peaks.
  • Steve notes transmission is built for peak hours so most capacity sits idle most of the year, creating an opportunity for managed flexibility.
ADVICE

Sell Speed To Power Not Low Prices

  • Prioritise speed to power over cheapest electricity when courting hyperscalers because they value rapid connection.
  • Steve says UK should lean into fast interconnection using existing substations to attract AI investment despite higher prices.
INSIGHT

Two Core Grid Problems Data Centres Create

  • Grid challenges split into two: physical connection (substations, transformers) and time‑varying utilisation where transmission is built for peaks.
  • Steve highlights transmission average utilisation ~30–35% so flexing demand during peaks unlocks spare capacity.
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