v3.26.1
NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Capital Surplus, Paid In
Retained Earnings
Accumulated Other Comprehensive Income
NSTAR Electric
NSTAR Electric
Common Stock
NSTAR Electric
Capital Surplus, Paid In
NSTAR Electric
Retained Earnings
NSTAR Electric
Accumulated Other Comprehensive Income
Beginning balance (in shares) at Dec. 31, 2024   366,608,052         200      
Beginning balance at Dec. 31, 2024 $ 15,039,387 $ 1,878,622 $ 9,428,905 $ 3,929,141 $ (26,472) $ 6,915,806 $ 0 $ 3,788,842 $ 3,127,105 $ (141)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net Income           167,175     167,175  
Dividends on Preferred Stock (1,880)     (1,880)   (490)     (490)  
Dividends on Common Stock (276,229)     (276,229)   (436,000)     (436,000)  
Capital Contributions from Eversource Parent           100,000   100,000    
Other Comprehensive Loss           (2)       (2)
Ending balance (in shares) at Mar. 31, 2025   367,307,083         200      
Ending balance at Mar. 31, 2025 15,341,257 $ 1,878,622 9,440,596 4,203,700 (23,949) 6,746,489 $ 0 3,888,842 2,857,790 (143)
Beginning balance (in shares) at Dec. 31, 2024   366,608,052         200      
Beginning balance at Dec. 31, 2024 15,039,387 $ 1,878,622 9,428,905 3,929,141 (26,472) 6,915,806 $ 0 3,788,842 3,127,105 (141)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net Income           336,104        
Other Comprehensive Loss           (2)        
Ending balance (in shares) at Jun. 30, 2025   371,038,611         200      
Ending balance at Jun. 30, 2025 15,665,791 $ 1,895,516 9,665,374 4,279,915 (23,912) 6,914,928 $ 0 3,888,842 3,026,229 (143)
Beginning balance (in shares) at Mar. 31, 2025   367,307,083         200      
Beginning balance at Mar. 31, 2025 15,341,257 $ 1,878,622 9,440,596 4,203,700 (23,949) 6,746,489 $ 0 3,888,842 2,857,790 (143)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net Income           168,929     168,929  
Dividends on Preferred Stock (1,880)     (1,880)   (490)     (490)  
Dividends on Common Stock (276,513)     (276,513)            
Other Comprehensive Loss           0        
Ending balance (in shares) at Jun. 30, 2025   371,038,611         200      
Ending balance at Jun. 30, 2025 $ 15,665,791 $ 1,895,516 9,665,374 4,279,915 (23,912) 6,914,928 $ 0 3,888,842 3,026,229 (143)
Beginning balance (in shares) at Dec. 31, 2025 375,416,880 375,416,880         200      
Beginning balance at Dec. 31, 2025 $ 16,197,271 $ 1,914,273 9,937,878 4,504,983 (20,507) 7,558,835 $ 0 4,238,842 3,319,768 225
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net Income           165,950     165,950  
Dividends on Preferred Stock (1,880)     (1,880)   (490)     (490)  
Dividends on Common Stock (295,978)     (295,978)            
Capital Contributions from Eversource Parent           258,000   258,000    
Other Comprehensive Loss           (27)       (27)
Ending balance (in shares) at Mar. 31, 2026   375,974,644         200      
Ending balance at Mar. 31, 2026 $ 16,530,950 $ 1,914,273 9,950,113 4,815,846 (20,377) 7,982,268 $ 0 4,496,842 3,485,228 198
Beginning balance (in shares) at Dec. 31, 2025 375,416,880 375,416,880         200      
Beginning balance at Dec. 31, 2025 $ 16,197,271 $ 1,914,273 9,937,878 4,504,983 (20,507) 7,558,835 $ 0 4,238,842 3,319,768 225
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net Income           319,707        
Other Comprehensive Loss           (53)        
Ending balance (in shares) at Jun. 30, 2026 376,598,337 376,598,337         200      
Ending balance at Jun. 30, 2026 $ 16,340,177 $ 1,915,718 9,993,108 4,573,332 (19,346) 7,804,509 $ 0 4,496,842 3,307,495 172
Beginning balance (in shares) at Mar. 31, 2026   375,974,644         200      
Beginning balance at Mar. 31, 2026 16,530,950 $ 1,914,273 9,950,113 4,815,846 (20,377) 7,982,268 $ 0 4,496,842 3,485,228 198
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net Income           153,757     153,757  
Dividends on Preferred Stock (1,880)     (1,880)   (490)     (490)  
Dividends on Common Stock $ (296,194)     (296,194)   (331,000)     (331,000)  
Other Comprehensive Loss           (26)       (26)
Ending balance (in shares) at Jun. 30, 2026 376,598,337 376,598,337         200      
Ending balance at Jun. 30, 2026 $ 16,340,177 $ 1,915,718 $ 9,993,108 $ 4,573,332 $ (19,346) $ 7,804,509 $ 0 $ 4,496,842 $ 3,307,495 $ 172