Data Centers Are Overbuying Insurance — And It’s Costing Them
As AI-driven demand pushes data center insurance towers to unprecedented heights, many operators may be purchasing far more coverage than their actual risk exposure warrants, according to Willis, a WTW business.
The global insurance marketplace can now offer up to $15 billion in capacity for large-scale data center risks, reflecting the sector’s explosive growth amid surging AI and digital infrastructure investment. But according to Willis, the industry’s fixation on assembling ever-larger insurance towers is outpacing its ability to actually quantify what needs protecting.
Risk profiles vary widely depending on factors including site selection, power infrastructure, construction methods, operational resilience, supply-chain dependencies, climate exposure and cyber vulnerabilities. But these variables are often underanalyzed even as buyers chase bigger limits, the brokerage said.
“The capacity is there,” said Alastair Swift, head of Global Specialties and the Global Digital Infrastructure Group at Willis. “The focus should be on using data-led analysis to quantify and differentiate exposure to secure appropriate insurance limits.”
Rethinking What “Protected” Really Means
For risk managers and insurance buyers, the shift represents both a challenge and an opportunity. Willis argues that resilience investment — not simply higher coverage limits — often delivers better protection. Measures such as flood protection, wind resistance upgrades, seismic design enhancements and wildfire mitigation, built into projects from the earliest design stages, can reduce risk more effectively than expanding coverage alone.
Willis says its work with digital infrastructure clients using this approach has produced tangible results, including improved credit and financing terms, enhanced S&P ratings, reduced insurance limits where risk analysis justified it, and stronger operational continuity planning through better-quantified downtime scenarios.
“Buying more insurance is not always the same as being better protected,” Swift said. “When risks are properly modelled, understood and mitigated, clients can build more efficient, resilient insurance programs that reflect their actual exposures.”
A Roadmap for Smarter Buying
Willis is urging clients to move from capacity-led purchasing to a more analytical, risk-led approach. That means quantifying exposures across design, construction and operations; modeling realistic loss scenarios rather than defaulting to market norms; embedding resilience into projects early; and assessing dependencies on energy, water and cooling systems.
Robust, verifiable data, Willis says, is essential for productive conversations with insurers, lenders and investors.
“As the global digital infrastructure sector scales, clients need a clearer understanding of what they are trying to insure and why,” said Jackie Bolig, head of Placement and Broking Solutions for North America at Willis. “The goal should be to buy the right amount of insurance, supported by evidence, analytics and a thorough understanding of risk, not simply seeking the largest capacity available.”
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