<ARTICLE> UT
<CIK> 0000023426
<NAME> THE CONNECTICUT LIGHT AND POWER COMPANY AND SUBSIDIARIES
<MULTIPLIER>1,000

                           
<PERIOD-TYPE>                 6-MOS
<FISCAL-YEAR-END>                                  DEC-31-1999
<PERIOD-END>                                       JUN-30-1999
<BOOK-VALUE>                                          PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                            3,567,882
<OTHER-PROPERTY-AND-INVEST>                            594,701
<TOTAL-CURRENT-ASSETS>                                 423,635
<TOTAL-DEFERRED-CHARGES>                             1,326,809
<OTHER-ASSETS>                                               0
<TOTAL-ASSETS>                                       5,913,027
<COMMON>                                               122,229
<CAPITAL-SURPLUS-PAID-IN>                              664,956
<RETAINED-EARNINGS>                                    152,968
<TOTAL-COMMON-STOCKHOLDERS-EQ>                         940,569
<PREFERRED-MANDATORY>                                   99,539
<PREFERRED>                                            116,200
<LONG-TERM-DEBT-NET>                                 1,798,430
<SHORT-TERM-NOTES>                                     180,000
<LONG-TERM-NOTES-PAYABLE>                                    0
<COMMERCIAL-PAPER-OBLIGATIONS>                               0
<LONG-TERM-DEBT-CURRENT-PORT>                                5
<PREFERRED-STOCK-CURRENT>                               19,750
<CAPITAL-LEASE-OBLIGATIONS>                             63,156
<LEASES-CURRENT>                                        93,871
<OTHER-ITEMS-CAPITAL-AND-LIAB>                       2,601,507
<TOT-CAPITALIZATION-AND-LIAB>                        5,913,027
<GROSS-OPERATING-REVENUE>                            1,172,066
<INCOME-TAX-EXPENSE>                                    12,866
<OTHER-OPERATING-EXPENSES>                           1,102,527
<TOTAL-OPERATING-EXPENSES>                           1,127,284
<OPERATING-INCOME-LOSS>                                 44,782
<OTHER-INCOME-NET>                                      (6,502)
<INCOME-BEFORE-INTEREST-EXPEN>                          50,171
<TOTAL-INTEREST-EXPENSE>                                70,691
<NET-INCOME>                                           (20,520)
<PREFERRED-STOCK-DIVIDENDS>                              6,450
<EARNINGS-AVAILABLE-FOR-COMM>                          (26,970)
<COMMON-STOCK-DIVIDENDS>                                     0
<TOTAL-INTEREST-ON-BONDS>                                    0
<CASH-FLOW-OPERATIONS>                                 213,446
<EPS-BASIC>                                             0.00
<EPS-DILUTED>                                             0.00