** Shares of U.S. power producers decline premarket after grid operator PJM Interconnection unveiled a plan to manage surging power demand from data centers that Big Tech needs for its AI expansion
** PJM late on Friday said it plans to require new large power users to either bring their own power generation or enter into a connect and manage framework subject to early curtailment
** After the news, brokerage Jefferies said PJM's decision will make investors question the earnings, cash flows, probability of above-market contracts, and valuation multiples in earnest for the first time in some time
** Constellation Energy CEG.O down 2.8%, Vistra Corp VST.N declines 2.8% and Talen Energy TLN.O falls 3.7%
** NRG Energy NRG.N slips 2.7%
** "We think U.S. power producers' stocks are overvalued as investors underestimate regulatory risk and potential pressure on long-term margins," Morningstar said on Friday
(Reporting by Sumit Saha in Bengaluru)
((Sumit.Saha@thomsonreuters.com;))
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