The data centre insurance market is growing fast, but the…
Observation
Swiss Re Institute's sigma insights paper on AI data centre insurance documented that capital spending by the five largest cloud providers is forecast to exceed USD 600 billion in 2026 — a 36% annual increase year-on-year — with 75% tied directly to AI data centre infrastructure. The paper flagged that multiple data centres are frequently insured through separate programmes covering building, equipment, and power, making accumulation tracking difficult and creating conditions where a single event can simultaneously affect multiple insurance programmes at the same carrier.
Angle
The data centre insurance market is growing fast, but the accumulation risk is growing faster. When multiple large data centres are clustered within a 20-mile radius — as is occurring in Northern Virginia and Abilene, Texas — a single natural catastrophe becomes a correlated loss across multiple policies and potentially multiple carriers who may not know they share the same geographic exposure. CAT accumulation tools built for conventional property risk were not designed for this geometry.
Implication for P&C carriers
Property underwriters writing data centre risk need to treat geographic clustering as the primary accumulation lens, not individual site characteristics alone. The question for every data centre submission is not only "what is this building's risk profile?" but "what is our total exposed value within 20 miles of this location across all programmes and all lines?" Carriers who cannot answer the second question are accumulating risk they cannot measure — and therefore cannot price, limit, or reinsure correctly.