<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from balance
sheet statement of income and statement of cash flows and is qualified in its
entirety by reference to such financial statements
</LEGEND>
<CIK> 0000084557
<NAME> ROCHESTER GAS AND ELECTRIC CORP.
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,455,636
<OTHER-PROPERTY-AND-INVEST>                          0
<TOTAL-CURRENT-ASSETS>                         215,226
<TOTAL-DEFERRED-CHARGES>                       731,806
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               2,402,668
<COMMON>                                       194,429
<CAPITAL-SURPLUS-PAID-IN>                      393,563
<RETAINED-EARNINGS>                            160,163
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 748,155
<PREFERRED-MANDATORY>                           25,000
<PREFERRED>                                     47,000
<LONG-TERM-DEBT-NET>                           580,117
<SHORT-TERM-NOTES>                              31,500
<LONG-TERM-NOTES-PAYABLE>                      212,904
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                    3,998
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 753,994
<TOT-CAPITALIZATION-AND-LIAB>                2,402,668
<GROSS-OPERATING-REVENUE>                      741,102
<INCOME-TAX-EXPENSE>                            46,318
<OTHER-OPERATING-EXPENSES>                     579,368
<TOTAL-OPERATING-EXPENSES>                     625,686
<OPERATING-INCOME-LOSS>                        115,416
<OTHER-INCOME-NET>                               1,475
<INCOME-BEFORE-INTEREST-EXPEN>                 116,891
<TOTAL-INTEREST-EXPENSE>                        44,473
<NET-INCOME>                                    72,418
<PREFERRED-STOCK-DIVIDENDS>                      2,775
<EARNINGS-AVAILABLE-FOR-COMM>                   69,643
<COMMON-STOCK-DIVIDENDS>                        47,960
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                         194,219
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0