The country's electrical infrastructure is experiencing heightened demand as rapid expansion of electrification and broader energy consumption continue to test the capacity of transmission systems. Rapid expansion in artificial intelligence is driving a pronounced rise in power consumption, as large-scale technology operators build out sprawling data centre facilities nationwide.
Simultaneously, advocacy for cleaner power sources and the broader shift toward renewable energy are driving the electrification of transport infrastructure, spanning battery-powered vehicles as well as residential and commercial heating and cooling systems.
A January report from the North American Electric Reliability Corporation (NERC) determined that nine of the 15 grid regions across the United States — roughly 60 percent — face either elevated or high probability of insufficient power supply by 2030. Under a standard trajectory, consumption in that area is projected to exceed available resources in the near term. Resources are assessed as sufficient under normal conditions, though gaps may arise when weather reaches exceptional severity.
Densely populated regions such as New York and Pennsylvania rely on these vulnerable power networks, and a recent report noted that overloaded transmission lines face equipment failure risks in the near term, while prolonged strain can lead to outages during high-demand periods. Separately, a Lancet study published earlier this year found that approximately 500,000 people globally died from heat-related causes annually between 2000 and 2019. According to the research, roughly 190,000 fatalities per year are averted through the use of air conditioning. Frigid temperatures also contribute to an increasing number of fatalities each year.
The organisation outlined several contributing factors and constraints behind the heightened risk levels affecting power grids across Canada, the United States, and Mexico. Among the factors drawing attention, rapidly growing power consumption linked to the expansion of AI technology stands out as particularly prominent.
Data from the International Energy Agency forecast that power demand across the United States will climb by close to 2 percent annually on average, a pace more than twice what the country recorded over the preceding decade.
Growing reliance on variable generation sources — wind and solar among them — poses a notable challenge to the stability of the country's power network. Battery storage infrastructure and longer-duration storage technologies have failed to expand at a rate proportional to the growth in renewable generation capacity, despite their role in addressing the variability inherent in weather-dependent power sources.
Power grids are encountering constraints in expanding transmission infrastructure to accommodate the growing volume of energy flows, with procurement uncertainties and supply chain delays reported to be slowing network development in certain regions. The NERC report noted that additional factors behind project delays include economic pressures, planning and construction challenges, permitting hurdles, and shifting demand requirements, adding that of roughly 900 projects either under construction or in the planning pipeline for the coming decade, at least 390 have been pushed back from their originally anticipated service dates.
Meanwhile, the generator interconnection process has grown more intricate and time-consuming as the country's energy sector has broadened, with renewable energy providers and large technology companies now entering a more varied and competitive marketplace.
Among the changes put forward are measures to simplify the review process for grid connections and cut down on repeated studies that arise when developers drop out of or shift their place in the application queue. Power companies and area planners would have the option to develop transmission infrastructure based on projected demand rather than waiting for individual power producers to submit applications.
Incoming data centres and other high-demand electricity consumers could be aligned with new power generation capacity and targeted local grid improvements. Improved interconnection across the country's disparate transmission networks would enable neighbouring regions to exchange excess power and handle periods of heightened consumption more efficiently.
