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NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Allowance for uncollectible accounts | $ 579,582 | $ 554,455
NSTAR Electric |  |
Allowance for uncollectible accounts | $ 106,174 | $ 97,026

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