Google’s power-hungry data centers crave nuclear energy

Your cloud computing costs could rise as data centers secure power through long-term contracts.

Google has entered into a 20-year power purchase agreement with Constellation, the US's leading nuclear power plant operator. This deal aims to guarantee revenue for efficiency upgrades at six nuclear power plant sites across Illinois, Pennsylvania, and New Jersey. The agreement represents over $4.3 billion in new investment by Constellation, with expectations of collectively adding 890 megawatts of nuclear capacity over the next five years through modernization of 11 reactors. These sites are connected to the PJM Interconnection grid, a vast network that serves states including Virginia, a major data center hub. The PJM grid has recently faced challenges meeting increased demand from AI data centers, prompting concerns about reliability and potential blackouts. Google also secured a separate, larger 15-year agreement with Constellation for power from other existing plants within the PJM service area. Google's electricity demand surged 37% last year, leading to an 18% rise in its carbon emissions.

Google's significant investment in nuclear power and its expanded agreements with Constellation underscore a growing trend among major tech companies to secure stable, high-capacity energy sources for their data centers. This move signals a strategic pivot to address the immense and escalating power demands driven by AI and machine learning workloads, which are straining existing power grids. The emphasis on nuclear power highlights its perceived reliability and lower carbon footprint compared to fossil fuels, though the implications for overall grid stability and energy pricing remain a key concern for regulators and consumers.

The substantial financial commitments and the focus on upgrading existing nuclear infrastructure suggest a long-term strategy to decouple AI's energy needs from traditional fossil fuel sources. However, this approach also raises questions about the actual environmental benefits and the potential for driving up electricity costs for other grid users, as noted by market monitors and regulators. The PJM Interconnection's struggle to manage data center demand will likely lead to increased scrutiny of how new energy-intensive facilities are integrated and how their power procurement impacts overall grid health and affordability.