Florida-based power generator NextEra Energy Inc.has renewed its interest in buying Oncor Electric Delivery Co., as a rival takeover deal shows signs of unraveling, according to two people familiar with the talks.

NextEra made its position known after Oncor parent Energy Future Holdings Corp. replaced its bankruptcy reorganization plan on May 1, according to the people, who asked not to be named discussing private negotiations. Under the original plan, its most-profitable business would have been sold to a group led by Hunt Consolidated Inc.

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