<PAGE>
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K
                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


                                 March 25, 1999
                        (Date of earliest event reported)


                             Duquesne Light Company
             (Exact name of Registrant as specified in its charter)


Pennsylvania                          1-956                     25-0451600
------------                          -----                     ----------
(State of                     (Commission File No.)            (IRS Employer
Incorporation)                                               Identification No.)

                               411 Seventh Avenue
                         Pittsburgh, Pennsylvania 15219
--------------------------------------------------------------------------------
          (Address of principal executive offices, including zip code)



       Registrant's telephone number, including area code: (412)393-6000


                                       N/A
                                       ---
          (Former name or former address, if changed since last report)
<PAGE>
Items 1-4.     Not Applicable.

Item 5.   Other Events.

          Incorporated herein by reference as Exhibit 99.1 is a press release,
dated March 26, 1999 issued by Duquesne Light Company. Incorporated herein by
reference as Exhibits 2.1 and 2.2, respectively, are the Generation Exchange
Agreement and the Nuclear Generation Conveyance Agreement, discussed in the
press release.

Item 6.   Not Applicable.

Item 7.   Exhibits.

          2.1  Generation Exchange Agreement, dated as of March 25, 1999, by and
               between Duquesne Light Company, on the one hand, and The
               Cleveland Electric Illuminating Company, Ohio Edison and
               Pennsylvania Power Company on the other. The schedules and
               exhibits to this document are not filed herewith, but will be
               furnished supplementally to the SEC upon request.

          2.2  Nuclear Generation Conveyance Agreement, dated as of March 25,
               1999 by and between Duquesne Light Company, on the one hand, and
               Pennsylvania Power Company and The Cleveland Electric
               Illuminating Company, on the other. The schedules and exhibits to
               this document are not filed herewith, but will be furnished
               supplementally to the SEC upon request.

          99.1 Press Release, dated March 26, 1999, issued by Duquesne Light
               Company.

Items 8-9.     Not Applicable.

                                        2
<PAGE>
                                    SIGNATURE

          Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.



                                        Duquesne Light Company
                                        ----------------------------------------
                                                      (Registrant)



March 26, 1999                          /s/ Morgan K. O'Brien
--------------                          ----------------------------------------
    (Date)                                            (Signature)
                                                  Morgan K. O'Brien
                                               Vice President, Finance
<PAGE>
                                 EXHIBIT INDEX

EXHIBIT        DESCRIPTION

2.1            Generation Exchange Agreement, dated as of March 25, 1999, by and
               between Duquesne Light Company, on the one hand, and The
               Cleveland Electric Illuminating Company, Ohio Edison and
               Pennsylvania Power Company on the other. The schedules and
               exhibits to this document are not filed herewith, but will be
               furnished supplementally to the SEC upon request.

2.2            Nuclear Generation Conveyance Agreement, dated as of March 25,
               1999 by and between Duquesne Light Company, on the one hand, and
               Pennsylvania Power Company and The Cleveland Electric
               Illuminating Company, on the other. The schedules and exhibits to
               this document are not filed herewith, but will be furnished
               supplementally to the SEC upon request.

99.1           Press Release, dated March 26, 1999, issued by Duquesne Light
               Company.
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{"company-data": {"conformed-name": "DUQUESNE LIGHT CO", "cik": "0000030573", "assigned-sic": "4911", "irs-number": "250451600", "state-of-incorporation": "PA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-00956", "film-number": "99573940"}, "business-address": {"street1": "411 SEVENTH AVENUE (15-040)", "street2": "P O BOX 1930", "city": "PITTSBURGH", "state": "PA", "zip": "15219", "phone": "4123936000"}}
SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K
                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

                                 March 25, 1999
                        (Date of earliest event reported)

                             Duquesne Light Company
             (Exact name of Registrant as specified in its charter)

Pennsylvania                          1-956                     25-0451600
------------                          -----                     ----------
(State of                     (Commission File No.)            (IRS Employer
Incorporation)                                               Identification No.)

                               411 Seventh Avenue
                         Pittsburgh, Pennsylvania 15219
--------------------------------------------------------------------------------
          (Address of principal executive offices, including zip code)

       Registrant's telephone number, including area code: (412)393-6000

                                       N/A
                                       ---
          (Former name or former address, if changed since last report)
Items 1-4.     Not Applicable.

Item 5.   Other Events.

          Incorporated herein by reference as Exhibit 99.1 is a press release,
dated March 26, 1999 issued by Duquesne Light Company. Incorporated herein by
reference as Exhibits 2.1 and 2.2, respectively, are the Generation Exchange
Agreement and the Nuclear Generation Conveyance Agreement, discussed in the
press release.

Item 6.   Not Applicable.

Item 7.   Exhibits.

          2.1  Generation Exchange Agreement, dated as of March 25, 1999, by and
               between Duquesne Light Company, on the one hand, and The
               Cleveland Electric Illuminating Company, Ohio Edison and
               Pennsylvania Power Company on the other. The schedules and
               exhibits to this document are not filed herewith, but will be
               furnished supplementally to the SEC upon request.

          2.2  Nuclear Generation Conveyance Agreement, dated as of March 25,
               1999 by and between Duquesne Light Company, on the one hand, and
               Pennsylvania Power Company and The Cleveland Electric
               Illuminating Company, on the other. The schedules and exhibits to
               this document are not filed herewith, but will be furnished
               supplementally to the SEC upon request.

          99.1 Press Release, dated March 26, 1999, issued by Duquesne Light
               Company.

Items 8-9.     Not Applicable.

                                        2
SIGNATURE

          Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                        Duquesne Light Company
                                        ----------------------------------------
                                                      (Registrant)

March 26, 1999                          /s/ Morgan K. O'Brien
--------------                          ----------------------------------------
    (Date)                                            (Signature)
                                                  Morgan K. O'Brien
                                               Vice President, Finance
EXHIBIT INDEX

EXHIBIT        DESCRIPTION

2.1            Generation Exchange Agreement, dated as of March 25, 1999, by and
               between Duquesne Light Company, on the one hand, and The
               Cleveland Electric Illuminating Company, Ohio Edison and
               Pennsylvania Power Company on the other. The schedules and
               exhibits to this document are not filed herewith, but will be
               furnished supplementally to the SEC upon request.

2.2            Nuclear Generation Conveyance Agreement, dated as of March 25,
               1999 by and between Duquesne Light Company, on the one hand, and
               Pennsylvania Power Company and The Cleveland Electric
               Illuminating Company, on the other. The schedules and exhibits to
               this document are not filed herewith, but will be furnished
               supplementally to the SEC upon request.

99.1           Press Release, dated March 26, 1999, issued by Duquesne Light
               Company.