<ARTICLE> 5
<LEGEND>
Monongahela Power Company
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JUL-01-2000
<PERIOD-END>                               SEP-30-2000
<EXCHANGE-RATE>                                      1
<CASH>                                           4,185
<SECURITIES>                                         0
<RECEIVABLES>                                  134,087
<ALLOWANCES>                                   (5,079)
<INVENTORY>                                     33,780
<CURRENT-ASSETS>                               229,707
<PP&E>                                       2,504,306
<DEPRECIATION>                               1,136,674
<TOTAL-ASSETS>                               1,965,690
<CURRENT-LIABILITIES>                          277,661
<BONDS>                                        606,668
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                     74,000
<COMMON>                                       294,550
<OTHER-SE>                                     412,330
<TOTAL-LIABILITY-AND-EQUITY>                 1,965,690
<SALES>                                        194,942
<TOTAL-REVENUES>                               194,942
<CGS>                                          116,592
<TOTAL-COSTS>                                  146,486
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              10,620
<INCOME-PRETAX>                                 39,213
<INCOME-TAX>                                    10,823
<INCOME-CONTINUING>                             28,390
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    28,390
<EPS-BASIC>                                       0.00<F1>
<EPS-DILUTED>                                     0.00<F1>
<FN>
<F1>*All common stock is owned by parent, no EPS required.
</FN>