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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:14.0pt;font-family:"Times New Roman",serif">Conservation Period Called for Peak Energy Saving Credit and Participating Pepco Energy Wise Rewards™ Customers<o:p></o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:14.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif">WASHINGTON, D.C.
</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif">(September 18, 2018)<b>
</b>–<b> </b>A conservation period will be called from 1 p.m. to 2 p.m. on Wednesday, September 19, for Pepco’s Maryland customers, and for Pepco’s Maryland and District of Columbia customers participating in Energy Wise Rewards.
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif">Pepco’s Maryland customers are able to participate in the Peak Energy Savings Credit program, which rewards customers by offering a bill credit of $1.25 for every kilowatt hour (kWh) of
reduced energy use below the customer’s average energy use during specific hours on a Peak Savings Day. Pepco Maryland customers will receive a phone call indicating the hours to reduce energy use. Customers can also choose to be notified by email or text.</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif">For Maryland and District of Columbia customers participating in Pepco’s Energy Wise Rewards, a conservation period will be called from 1 p.m. to 2 p.m. This means that Pepco will cycle
participants’ air conditioner compressors off and on for short intervals. Because the air conditioner fan will continue to run, most customers will not notice a temperature change in their home. It may take up to a half-hour after the event ends for air conditioners
to resume normal operations. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif">Peak Energy Savings Credit and Energy Wise Rewards are voluntary programs. Energy Wise Rewards<i>
</i>offers customers a choice of a web-programmable thermostat or an outdoor switch, which the utility installs at no charge. Customers can learn more about Peak Energy Savings Credit by calling 1-855-730-PEAK or visit
<a href="http://www.pepco.com/peak">pepco.com/peak</a>. To learn more about Energy Wise Rewards call 1-866-353-5798 or visit
<a href="http://www.pepco.com/rewards">pepco.com/rewards</a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif">To learn more, readers are encouraged to visit
<a href="http://thesource.pepcoholdings.com/pepco"><i>The Source</i></a>, Pepco’s online news room. Find additional information about Pepco by visiting
<u><span style="color:#0563C1">www.</span></u><a href="http://pepco.com">pepco.com</a>. Follow us on Facebook at
<u><span style="color:blue">www.</span></u><a href="http://www.facebook.com/pepcoconnect">facebook.com/pepcoconnect</a> and on Twitter at
<u><span style="color:#0070C0">www</span><span style="color:blue">.</span></u><a href="http://www.twitter.com/pepcoconnect">twitter.com/pepcoconnect</a>. Our mobile app is available at
<u><span style="color:blue">www.</span></u><a href="http://www.pepco.com/mobileapp">pepco.com/mobileapp</a><span style="color:blue">.</span><o:p></o:p></span></p>
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<p class="MsoNormal"><i><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;font-family:"Times New Roman",serif">About Pepco: Pepco, a public utility owned by Exelon Corporation (NYSE: EXC), provides safe and reliable energy to more than 842,000 electric delivery customers in Maryland
and the District of Columbia. </span></i><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p>This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the
person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is
strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies. Exelon policies expressly prohibit employees from making defamatory or offensive statements and infringing
any copyright or any other legal right by Email communication. Exelon will not accept any liability in respect of such communications. -EXCIP<o:p></o:p></p>
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