A major US power merger bet heavily on AI datacenter growth but profitability hinge on power billing and capex economics.

NextEra and Dominion Energy's massive merger may depend on whether the combined company can keep power bills in check even as it rushes to supply the energy-hungry data centers that have pushed consumer electricity prices higher. The deal, which would create the third-largest energy company in the U.S., must clear reviews by multiple local, state and federal regulatory agencies that will assess consumer impacts as power bills surge in some U.S. regions.

"With the concerns about affordability throughout the country, the key issue here is keeping rates down, and keeping the growth affordable," said Paul Patterson, an energy analyst at Glenrock Associates LLC.

NextEra said buying Dominion would let it swiftly build new generation where others have lagged and connect proposed data centers waiting to begin operations. Serving data centers is a core reason for the merger. Dominion's service territory includes the northern Virginia area known as "Data Center Alley," a region of surging power demand that sits within the 13-state PJM Interconnection, where new data hubs are also expanding. Virginia's electricity consumption increased at an annual rate of 3.1% between 2019 and 2024, more than three times the national average of 0.9%, according to the U.S. Energy Information Administration. Household power bills have risen in some parts of PJM by more than 20% over the last two years as demand grows but supply stagnates.

Merging NextEra and Dominion—which together say they have built more power generation than the next 25 largest utilities combined—may provide the scale needed to move forward data center power generation and transmission projects that have been stalled, analysts and investors say. "Utilities now need larger balance sheets, broader generation portfolios, and faster infrastructure deployment to compete in the AI era," said Alex Torgerson, a mergers and acquisitions lead at West Monroe. "The biggest challenge now shifts to regulators, who will scrutinize market concentration, grid reliability, and whether customers see meaningful ratepayer benefits from a deal of this size."

NextEra and Dominion proposed $2.25 billion in bill credits over two years for Dominion customers in Virginia, North Carolina and South Carolina. "The regulatory obstacles to closing the deal are the real variables," said the research arm of Evercore.

The merger has drawn criticism from consumer advocates who say it is unnecessary and would ultimately benefit shareholders and executives more than utility customers. Five Dominion executives could together receive an estimated $66 million in pay and benefits as a result of the takeover. Dominion CEO Robert Blue's change-in-control payout was estimated at $30.1 million. "Utility mergers are all about benefits for shareholders and executives, not ratepayers," said Ari Peskoe, director of the Electricity Law Initiative at Harvard University Law School.