Hyperscale data center campuses represent the latest growth opportunity for the global re/insurance industry.
Annual investment in these specialized facilities will likely surpass $300 billion by 2027 and the total insurable asset base for the roughly 11,000 data centers currently in operation already exceeds $2 trillion. On top of that, new premiums from hyperscale data centers are expected to reach $10 billion annually this year, dwarfing the global aviation insurance market’s $5 billion in annual premiums.
Yet the sheer magnitude of these assets tests the limits of commercial and specialist re/insurers.
Capacity Constraints Exacerbate Insurance Protection Gap
S&P Global Ratings estimates that total insurable values for a single hyperscale data center campus can reach between $20 billion and $30 billion. Even in the construction phase, valuations may hit the $30 billion mark. For comparison, insurance limits for traditional infrastructure projects like bridges or tunnels typically range from $5 billion to $10 billion.
Because no single insurer can shoulder these risks alone, multiple insurers and reinsurers must collaborate to bridge the gap between available capacity and increasing demand. But as projects reach unprecedented scales, it becomes increasingly difficult to insure them fully. Coverage has become more selective and many tail risks have moved onto companies’ own balance sheets.
Material risks, such as business interruption or the loss of expensive IT equipment, will likely remain self-insured or only partially insured, particularly during the operational phase. Insurance coverage also remains limited for cyber risk, which is difficult to model.
However, the insurance protection gap isn’t just an insurance issue. It could increase the need for third-party capital outside the insurance industry, for example in the form of insurance-linked securities, and might become a capital-structure constraint for lenders who fund hyperscale data center projects.
For example, lenders and investors may shift toward assets that can be credibly restored. This focus on insurability can shape debt capacity and the role of equity. Since full replacement costs may exceed available insurance, a reduction in credit risk hinges on several mitigants.
These mitigants include guarantees, liquidity buffers, and strong sponsor commitments. In some cases, such as the Hyperion project, additional guarantees cover insurance shortfalls.
Rising Aggregation Risks Increase Need for Insurance
Re/insurers face significant concentration and aggregation risks in the data center sector. Large campuses concentrate high-value assets in a single location, which increases their vulnerability to natural catastrophes like tornadoes or other physical climate risks.
The interconnectedness of risks through multiple stakeholders, supply chain disruptions, and cyber threats also contribute to aggregation risk. As a result, an insurer might end up exposed to the same data center through various different products. This creates a need for high-quality data and the ability to track exposures accurately.
However, the campus-style nature of hyperscale data centers complicates traditional underwriting frameworks. Insurers must manage these risks through disciplined risk selection and capital management. Sophisticated insurers with strong modeling capabilities are likely to lead this underwriting effort.
