NEW YORK, July 23 (Reuters) – U.S. energy officials questioned PJM Interconnection’s power structure on Thursday as regulators weigh reforms to the country’s largest power grid, which faces the growing risk ​of blackouts as data center demand soars and little new electricity supply is added.

PJM, which covers 67 million Americans across the Mid-Atlantic and ‌Midwest that include the world’s biggest concentration of data centers, has struggled with power shortfalls and surging electricity prices since demand in the region began to accelerate roughly two years ago.

Officials with the White House, state governments and power industry executives convened at a technical conference held by the Federal Energy Regulatory Commission to discuss potential solutions to PJM’s supplies and pricing woes.

Some of those proposals ​included giving the grid operator’s board of managers more independence from its stakeholders, which include voting members like utilities and independent power producers, and more control to ​enact changes in the market that covers 13 states and the District of Columbia.

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PJM’s hundreds of members, including transmission owners and power ⁠plant operators, vote on market rules through a multi-layered process, with the board ultimately deciding whether to approve proposed changes.