Global Energy Perspective 2025

McKinsey & Company

McKinsey’s Global Energy Perspective 2025 report projects global warming pathways between 1.9°C and 2.7°C by 2100 as carbon emissions hit record highs. Fossil fuels will retain a substantial share of energy consumption past 2050, with overall demand expected to plateau between 2030 and 2035. This persistence is driven by cost competitiveness, with key low-carbon alternative fuels like green hydrogen unlikely to achieve broad market adoption before 2040 without policy mandates.

Power demand is accelerating globally, spurred by data center expansions in the United States, Europe, and China alongside rising industrial electrification. Variable renewables and natural gas will dominate new supply, with renewables potentially comprising 61 to 67 percent of the 2050 power mix. Abatement costs spike sharply near total power decarbonization. Consequently, the report emphasizes a system-wide strategy across industrial sectors to cost-effectively balance reliability, affordability, and regional emission reduction targets.

Comment

The projected surge in electricity consumption driven by data center expansion in North America directly threatens grid stability and national decarbonization timelines. Grid operators face an immediate trade-off between accommodating compute capacity for artificial intelligence and maintaining reserve margins without extending the lifecycle of coal-fired assets like the Gibson Generating Station. Integrating variable renewables alone cannot solve this structural tension without massive capital commitment to clean firm generation like small modular reactors or advanced geothermal systems.

This infrastructure bottleneck will inevitably force industrial relocation decisions toward regions with abundant, firm base-load power. Energy-intensive compute facilities and defense-critical microelectronics foundries will increasingly prioritise site selection in jurisdictions with active nuclear infrastructure, such as the Tennessee Valley Authority service territory, over grid regions reliant on delayed transmission buildouts.

Strategic Question for Discussion

If data center power demand forces utilities to delay the retirement of fossil-fuel assets like the Gibson Generating Station, which structural mechanism will prove more effective in maintaining grid stability — accelerated nuclear deployment under the Tennessee Valley Authority model or regional demand-side curtailment agreements?

The available evidence points toward regional base-load expansion via federal energy authorities like the Tennessee Valley Authority as the more durable long-term solution. While demand-side curtailment provides immediate peak-shaving relief, the scale of compute power required by high-performance data centers will ultimately necessitate dedicated, non-intermittent nuclear generation. Consequently, industrial site selection will likely shift toward regions offering pre-permitted nuclear or firm clean energy infrastructure.

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