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NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Allowance for uncollectible accounts $ 457,846 $ 417,406
NSTAR Electric    
Allowance for uncollectible accounts $ 100,534 $ 97,005