Wood Mackenzie Analysis Reports White House Steps In As PJM Interconnection Faces Rising Demand Pressure From Data Centers

When electricity market issues become serious enough to reach the White House, it usually signals deeper structural stress in the system. That is exactly what has been happening with PJM, the largest electricity market and grid operator in the United States, which has recently come under intense political and public attention.

Earlier this year, 13 state governors visited the White House to discuss urgent challenges facing PJM. The system is struggling to balance two major pressures at the same time: rapidly rising electricity demand driven largely by data center expansion, and the need to keep electricity prices affordable for households and businesses. PJM is now operating in a highly complex environment where reliability, cost, and long-term investment needs are all colliding.

PJM plays a central role in the US power system. It is a nonprofit organization that operates the electricity grid, manages the wholesale power market, and oversees long-term transmission planning. It is regulated by the Federal Energy Regulatory Commission (FERC), but it also serves more than a thousand member organizations spread across 13 states and the District of Columbia. Each of these states has different energy policies, political priorities, and regulatory approaches, which makes coordination extremely challenging.

The region served by PJM includes some of the fastest-growing electricity demand centers in the country, especially due to data centers. Northern Virginia, often referred to as “data center alley,” is one of the most concentrated hubs for digital infrastructure in the world and is estimated to handle a very large share of global internet traffic. This rapid growth in data infrastructure has significantly increased electricity consumption and placed additional strain on the grid. As a result, when PJM faces operational or planning difficulties, the impact is felt across a large portion of the country.

According to Asim Haque, Senior Vice President for Governmental and Member Services at PJM, the organization has a unique and complicated structure. It must manage real-time grid operations, run competitive electricity markets, and plan future transmission needs, all while balancing the interests of multiple states and regulators. This layered governance structure is one of the reasons why decision-making within PJM is often slow and politically sensitive.

Two major trends have converged to create current pressures on the system. The first is decarbonization, which is pushing older fossil fuel plants to retire and increasing reliance on renewable energy sources that can be variable. The second is the explosive growth of data centers, which require large and continuous amounts of electricity. Together, these forces have contributed to rising prices in PJM’s capacity market, where electricity supply is procured in advance to ensure future reliability. When efforts were made to cap these rising capacity prices, concerns emerged about potential risks to future grid reliability. This tension between keeping prices affordable and ensuring enough future supply has become a central policy issue.

In response, the White House brought together governors from all 13 PJM states and helped develop a set of guiding principles aimed at improving how new generation capacity is brought into the system. One key idea emerging from these discussions is the concept of a backstop reliability procurement mechanism. This would act as a temporary solution to quickly bring new electricity generation online if market signals alone are not sufficient. Another major proposal is that large electricity users, particularly data centers, may be required to secure their own power supply or accept controlled curtailment of usage during peak demand periods.

This approach is often described as “connect and manage,” meaning data centers can connect to the grid, but their power supply could be reduced if necessary to prevent wider outages affecting residential customers. There is also a growing expectation that the costs of expanding grid capacity and generation should be largely borne by large new energy users such as data centers, although the fairness and practicality of this approach remains under debate. The discussion also raises broader questions about whether PJM’s current market design is still suitable for today’s electricity system.

Amy Myers Jaffe, Director of the Energy, Climate Justice and Sustainability Lab at New York University, adds a policy and consumer perspective to the debate. She highlights the challenge of balancing cost, reliability, and clean energy goals, and questions whether some of the system’s complexities are unavoidable or whether they sometimes make it harder to adopt lower-cost solutions such as renewables and battery storage.

In particular, there is debate over whether the existing three-year forward capacity market provides the right signals to encourage long-term investment in new generation and infrastructure, or whether a different mechanism is needed to ensure future reliability. Overall, PJM’s situation illustrates how rapidly changing electricity demand, driven by digital infrastructure growth and energy transition pressures, is reshaping power markets. As Asim Haque notes, if demand growth is not directly managed or constrained, costs are likely to rise, and policymakers must then decide how those costs should be distributed among consumers, utilities, and large industrial users.