Bernstein has warned that the global data centre pipeline will face substantial construction delays and cancellations through 2027, a development that will reshape capacity planning across markets. The research house reported that a combination of heightened capital costs, slower demand and permit challenges has prompted developers and tenants to reassess projects. The announcement covers projects at various stages, including those under construction and those in planning. The study frames the trend as a material recalibration of supply dynamics in the coming years. Bernstein identified financing strains and rising interest rates as central pressures, noting that some sponsors are pausing new builds to conserve cash. The report indicated that supply chain bottlenecks and higher input prices have extended timelines and increased budgets for ongoing schemes. Regulators in several jurisdictions have also tightened approvals, which has slowed progress on large projects. As a result, contractual milestones and delivery schedules have been renegotiated in numerous cases. The consequences are already evident among operators, with some infrastructure firms deferring capacity additions and focusing on optimisation of existing assets. Hyperscale tenants are reported to be prioritising critical locations and renegotiating lease terms to reflect shifting timelines. Equipment vendors face uneven demand and longer lead times for orders, affecting manufacturing plans and inventory management. Investors are reassessing projected returns and the pace of capital deployment in the sector. Bernstein forecasts a period of consolidation and heightened scrutiny of project economics, with some developments repurposed or scaled back to match revised demand profiles. The research house advised that stakeholders should prioritise flexible design, staged delivery and firm contractual protections to mitigate execution risk. Policymakers and local planners were urged to streamline approval processes to prevent unnecessary delays to essential infrastructure. Market participants are adjusting timetables and balance sheets in response to the revised outlook for capacity growth.