The rapid growth of AI-ready data centres is putting heavy strain on the national grid. As more facilities are built, traditional power infrastructure struggles to keep pace, with grid connection wait times now stretching up to seven years. By 2027, 40 percent of data centres in the US could face power shortages.
Sanna Silander, energy business director at Wärtsilä, stated: “Contracting power is now the biggest hurdle to growth. Operators who secure supply quickly can continue expanding, while others risk falling behind.”
High-density workloads demand flexible, responsive power, yet the ageing grid, congested interconnection queues, and long turbine delivery times create a mismatch between supply and demand. In many cases, a facility could be constructed faster than it can be powered.
To overcome these challenges, operators are turning to modular, distributed power solutions. Modern medium-speed reciprocating internal combustion engine (RICE) systems offer fast deployment, on-site scalability, and low emissions. These systems use minimal water, tolerate high heat and altitude, and can operate on natural gas today while accommodating hydrogen or alternative fuels in the future.
Modular design allows facilities to start at a manageable capacity and expand in stages, reducing capital and operating costs while speeding commissioning. Engine-based solutions also integrate easily with batteries and renewables, enabling hybrid microgrid setups.
“Fast, flexible, and sustainable power is now a competitive advantage,” says Silander. “Data centre operators must manage the clock, securing energy when and where it’s needed to maintain growth.”
As the AI era accelerates, access to reliable, timely power is no longer a background issue, it has become the defining factor for future expansion and operational success.
Sources: Data Centre Dynamics
