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<P ALIGN="CENTER">UNITED STATES</P>
<P ALIGN="CENTER">SECURITIES AND EXCHANGE COMMISSION</P>
<P ALIGN="CENTER">Washington, D.C. 20549</B></FONT></TD>
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<B><FONT SIZE=3><P ALIGN="CENTER">FORM 8-K</B></FONT></TD>
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<B><FONT SIZE=3><P ALIGN="CENTER">CURRENT REPORT</B></FONT></TD>
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<B><FONT SIZE=3><P ALIGN="CENTER">Pursuant to Section 13 or 15(d) of <BR>
The Securities Exchange Act of 1934</P>
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<FONT SIZE=3><P ALIGN="CENTER">Date of Report (Date of earliest event reported):  <B><U>May 19, 2006</B></U></FONT></TD>
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<U><FONT SIZE=3><P ALIGN="CENTER">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>POTOMAC ELECTRIC POWER COMPANY</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>
</U>(Exact name of registrant as specified in its charter)</FONT></TD>
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<B><U><FONT SIZE=3><P ALIGN="CENTER">&nbsp;&nbsp;District of Columbia and Virginia&nbsp;&nbsp;&nbsp;<BR>
</B></U>(State or other jurisdiction<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of incorporation)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
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<B><U><FONT SIZE=3><P ALIGN="CENTER">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;001-01072&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B></U><BR>
(Commission<BR>
File Number)</FONT></TD>
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<B><U><FONT SIZE=3><P ALIGN="CENTER">&nbsp;&nbsp;&nbsp;&nbsp;53-0127880&nbsp;&nbsp;&nbsp;&nbsp;</B><BR>
</U>(IRS Employer <BR>
Identification No.)</FONT></TD>
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<B><U><FONT SIZE=3><P ALIGN="CENTER">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;701 Ninth Street, N.W., Washington, DC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B><BR>
</U>(Address of principal executive offices)</FONT></TD>
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<B><U><FONT SIZE=3><P ALIGN="CENTER">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;20068&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B>&nbsp;<BR>
</U>(Zip Code)</FONT></TD>
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<FONT SIZE=3><P ALIGN="CENTER">Registrant"s telephone number, including area code &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B><U>(202) 872-3526</B></U></FONT></TD>
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<B><U><FONT SIZE=3><P ALIGN="CENTER">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B><BR>
</U>(Former name or former address, if changed since last report.)</FONT></TD>
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<FONT SIZE=3><P>Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</FONT></TD>
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<FONT FACE="Wingdings" SIZE=3><P ALIGN="CENTER">&#111;</FONT></TD>
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<FONT SIZE=3><P>Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</FONT></TD>
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<FONT SIZE=3><P>Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</FONT></TD>
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<FONT SIZE=3><P>Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17&nbsp;CFR&nbsp;240.14d-2(b))</FONT></TD>
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<FONT SIZE=3><P>Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17&nbsp;CFR&nbsp;240.13e-4(c))</FONT></TD>
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<B><P ALIGN="RIGHT">Potomac Electric Power Company<BR>
Form 8-K</B></TD>
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<B><P>Item 8.01</B></TD>
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<B><P>Other Events.</B></TD>
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<TR><TD WIDTH="13%" VALIGN="TOP" COLSPAN=2>&nbsp;</TD>
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<U><P>Maryland Customer Electricity Cost Increase Deferral</U></TD>
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<TR><TD WIDTH="13%" VALIGN="TOP" COLSPAN=2>&nbsp;</TD>
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<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As previously disclosed, the Maryland Public Service Commission ("MPSC") approved a settlement agreement on April 21, 2006, among Potomac Electric Power Company ("Pepco"), the staff of the MPSC, and the Maryland Office of People's Counsel.  The settlement agreement provides for a rate mitigation program for Pepco's residential customers to address recent significant increases in electricity costs.</TD>
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<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Through May 17, 2006, approximately 1% of Pepco's residential customers have elected to participate in the deferral program.</TD>
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<B><P ALIGN="CENTER">SIGNATURES</B></TD>
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<B><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B>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 hereunto duly authorized.</TD>
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<U><P>&nbsp;&nbsp;POTOMAC ELECTRIC POWER COMPANY&nbsp;&nbsp;</U><BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Registrant)</TD>
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<P>Date &nbsp;&nbsp;&nbsp;&nbsp;<U>&nbsp;&nbsp;&nbsp;May 19, 2006&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></TD>
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<U><P>&nbsp;/s/ JOSEPH M. RIGBY&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U><BR>
Name:&nbsp;&nbsp;Joseph M. Rigby<BR>
Title:&nbsp;&nbsp;&nbsp;&nbsp;Senior Vice President and <BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Chief Financial Officer</TD>
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Current Report on Form 8-K
UNITED STATES
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
Date of Report (Date of earliest event reported):
May 19, 2006
POTOMAC ELECTRIC POWER COMPANY
(Exact name of registrant as specified in its charter)
District of Columbia and Virginia
(State or other jurisdiction
of incorporation)
001-01072
(Commission
File Number)
53-0127880
(IRS Employer
Identification No.)
701 Ninth Street, N.W., Washington, DC
(Address of principal executive offices)
20068
(Zip Code)
Registrant"s telephone number, including area code
(202) 872-3526
Not Applicable
(Former name or former address, if changed since last report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Potomac Electric Power Company
Form 8-K
Item 8.01
Other Events.
Maryland Customer Electricity Cost Increase Deferral
As previously disclosed, the Maryland Public Service Commission ("MPSC") approved a settlement agreement on April 21, 2006, among Potomac Electric Power Company ("Pepco"), the staff of the MPSC, and the Maryland Office of People's Counsel.  The settlement agreement provides for a rate mitigation program for Pepco's residential customers to address recent significant increases in electricity costs.
Through May 17, 2006, approximately 1% of Pepco's residential customers have elected to participate in the deferral program.
SIGNATURES
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 hereunto duly authorized.
POTOMAC ELECTRIC POWER COMPANY
(Registrant)
Date
May 19, 2006
/s/ JOSEPH M. RIGBY
Name:  Joseph M. Rigby
Title:    Senior Vice President and
Chief Financial Officer
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