Constellation Energy announced a 20-year power purchase agreement with Google on Tuesday, supporting the addition of 890 MW of new nuclear generation through uprates of 11 existing units in the PJM Interconnection. The units are located at a half dozen sites in Illinois, Pennsylvania, and New Jersey, with the first uprate expected online in 2028. The deal matters because it represents a direct, privately funded response to PJM's Bring Your Own Power proposal and arrives as the grid operator faces a shortfall of about 6.8 GW of new capacity amid rising data center demand. Constellation framed the agreement as a model for how technology companies and the energy industry can work together to deliver grid-wide benefits funded by private entities.

The nuclear component is backed by $4.3 billion in new investment by Constellation. Alongside it, the two companies entered into a separate 15-year supply agreement for another 2,700 MW across the PJM market. The arrangement will incorporate operational load-shaping and demand-response capabilities to reduce power consumption during grid stress. Across the six nuclear sites, the agreement is expected to help sustain roughly 4,400 existing jobs and create approximately 7,200 temporary construction jobs. The announcement follows a similar 690-MW deal Constellation struck with Amazon last week, centered around a $3-billion, 190-MW expansion of the Calvert Cliffs nuclear plant in Maryland, with that capacity expected online between 2030 and 2032.

The evidence comes from a single Utility Dive article published on October 6, 2026, which was read in full. The report cites Constellation's statement that the Google deal is a direct response to PJM's Bring Your Own Power proposal and aligns with the White House's ratepayer protection pledge. It also notes that PJM will delay a planned reliability backstop procurement auction following the Federal Energy Regulatory Commission's September 29 decision to only partly approve it. Constellation Chairman, President and CEO Joe Dominguez said preserving and expanding the output of the existing nuclear fleet and developing new clean generation is critical to meeting the nation's growing energy needs. The article reports that shares of Constellation were up almost 14% in morning trading on the announcement day.

The sector implications are significant for both nuclear operators and hyperscale technology companies. The back-to-back Google and Amazon agreements support almost 1.1 GW of nuclear expansions within a single week, signaling that large technology firms are willing to commit to long-term clean power contracts tied to existing nuclear assets rather than relying solely on new generation or grid procurement. The deal also calls for deploying Google Cloud and AI across energy operations, with Constellation building Gemini Enterprise agentic workflows directly into its core operations. Under an expanded five-year technology agreement, the companies will use AI for site selection, power flow modeling, permitting and interconnection planning, generation optimization, and infrastructure security. This pairing of commercial nuclear investment with advanced technology is explicitly framed as supporting the rapid growth of artificial intelligence and digital infrastructure.

The analysis is bounded by a single secondary source, and several details remain unconfirmed. The dossier does not include the full text of the power purchase agreements, the specific pricing terms, the identity of all six nuclear sites, or the regulatory approvals required for the uprates. The 890 MW figure is attributed to the announcement but not independently corroborated. The Amazon deal's 690-MW headline number appears alongside a 190-MW Calvert Cliffs expansion figure, and the relationship between those two numbers is not fully explained in the source. What to watch includes whether PJM's delayed backstop auction proceeds, how the Bring Your Own Power framework evolves, and whether additional technology companies follow Google and Amazon in contracting directly with nuclear operators.