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&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="6"&gt;&lt;b&gt;12 &lt;/b&gt;&lt;/font&gt;&lt;font size="2"&gt;&lt;b&gt;Commitments, Guarantees, and Contingencies &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Commitments &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;We have made substantial commitments in connection with our merchant energy, regulated electric and gas, and other nonregulated businesses. These commitments relate to: &lt;/font&gt;&lt;/p&gt;
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&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;purchase of electric generating capacity and energy, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;procurement and delivery of fuels,&lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;the capacity and transmission and transportation rights for the physical delivery of energy to meet our obligations to our customers, and &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;long-term service agreements, capital for construction programs, and other. &lt;/font&gt;&lt;/dd&gt;&lt;/dl&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Our merchant energy business enters into various long-term contracts for the procurement and delivery of fuels to supply our generating plant requirements. In most cases, our contracts contain provisions for price escalations, minimum purchase levels, and other financial commitments. These contracts expire in various years between 2010 and 2018. In addition, our merchant energy business enters into long-term contracts for the capacity and transmission rights for the delivery of energy to meet our physical obligations to our customers. These contracts expire in various years between 2010 and 2030. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Our merchant energy business also has committed to long-term service agreements and other purchase commitments for our plants. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Our regulated electric business enters into various long-term contracts for the procurement of electricity. As of December&amp;nbsp;31, 2009, these contracts expire between 2010 and 2012 and represent BGE's estimated requirements as follows: &lt;/font&gt;&lt;/p&gt;
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&lt;th style="FONT-FAMILY: times" align="left"&gt;&lt;font size="2"&gt;&lt;i&gt;Contract Duration&lt;/i&gt;&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
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&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The cost of power under these contracts is recoverable under the Provider of Last Resort agreement reached with the Maryland PSC. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Our regulated gas business enters into various long-term contracts for the procurement, transportation, and storage of gas. Our regulated gas business has gas procurement contracts that expire between 2010 and 2011, and transportation and storage contracts that expire between 2012 and 2027. The cost of gas under these contracts is recoverable under BGE's gas cost adjustment clause discussed in&lt;/font&gt; &lt;font size="2"&gt;&lt;i&gt;Note&amp;nbsp;1,&lt;/i&gt;&lt;/font&gt;&lt;font size="2"&gt; and therefore are excluded from the table later in this Note. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Our other nonregulated businesses have committed to gas purchases, as well as to contribute additional capital for construction programs and joint ventures in which they have an interest. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;We have also committed to long-term service agreements and other obligations related to our information technology systems. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;At December&amp;nbsp;31, 2009, we estimate our future obligations to be as follows: &lt;/font&gt;&lt;/p&gt;
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&lt;th style="FONT-FAMILY: times" align="center" colspan="2"&gt;&lt;font size="1"&gt;2010&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
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&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Merchant Energy:&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
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&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="white"&gt;
&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Purchased capacity and energy&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;160.9&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;303.5&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;107.7&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;208.7&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;780.8&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="#CCEEFF"&gt;
&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Purchased energy from CENG&amp;nbsp;(1)&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;534.7&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;1,513.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;2,249.8&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;&amp;#151;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;4,297.8&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="white"&gt;
&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Fuel and transportation&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;540.5&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;437.5&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;94.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;217.9&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;1,290.2&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="#CCEEFF"&gt;
&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Long-term service agreements, capital, and other&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;12.9&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;7.8&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;4.9&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;6.7&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;32.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="top"&gt;
&lt;td style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" valign="bottom" colspan="17"&gt;&amp;nbsp;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="white"&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" colspan="2"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Total merchant energy&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;1,249.0&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;2,262.1&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;2,456.7&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;433.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;6,401.1&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="#CCEEFF"&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" colspan="2"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Corporate and Other:&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="white"&gt;
&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Long-term service agreements, capital, and other&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;49.6&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;11.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;1.7&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;&amp;#151;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;62.6&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="#CCEEFF"&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" colspan="2"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Regulated:&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="white"&gt;
&lt;td style="FONT-FAMILY: times"&gt;&lt;font size="0"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Purchase obligations and other&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;15.4&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;20.2&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;&amp;#151;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;&amp;#151;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;35.6&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="top"&gt;
&lt;td style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" valign="bottom" colspan="17"&gt;&amp;nbsp;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="#CCEEFF"&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" colspan="2"&gt;
&lt;p style="MARGIN-LEFT: 8pt; TEXT-INDENT: -8pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;Total future obligations&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;1,314.0&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;2,293.6&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;2,458.4&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;433.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="1"&gt;6,499.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="1"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="top"&gt;
&lt;td style="BORDER-BOTTOM: #000000 2.25pt double; FONT-FAMILY: times" valign="bottom" colspan="17"&gt;&amp;nbsp;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;
&lt;!-- end of user-specified TAGGED TABLE --&gt;&lt;/div&gt;
&lt;dl compact="compact"&gt;
&lt;dt style="MARGIN-BOTTOM: -9pt; FONT-FAMILY: times"&gt;&lt;font size="1"&gt;&lt;i&gt;(1)&lt;/i&gt;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="1"&gt;&lt;i&gt;Represents the nominal amounts of payments made to CENG under our power purchase agreement. The total fair value at closing of $0.8&amp;nbsp;billion was recorded on our balance sheet in "Unamortized energy contract assets."&lt;/i&gt;&lt;/font&gt;&lt;/dd&gt;&lt;/dl&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Long-Term Power Sales Contracts&lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;We enter into long-term power sales contracts in connection with our load-serving activities. We also enter into long-term power sales contracts associated with certain of our power plants. Our load-serving power sales contracts extend for terms through 2019 and provide for the sale of energy to electricity distribution utilities and certain retail customers. Our power sales contracts associated with our power plants extend for terms into 2016 and provide for the sale of all or a portion of the actual output of certain of our power plants. Substantially all long-term contracts were executed at pricing that approximated market rates, including profit margin, at the time of execution. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Guarantees &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Our guarantees do not represent incremental Constellation Energy obligations; rather they primarily represent parental guarantees of subsidiary obligations. The following table summarizes the maximum exposure by guarantor based on the stated limit of our outstanding guarantees: &lt;/font&gt;&lt;/p&gt;
&lt;div style="PADDING-RIGHT: 0pt; PADDING-LEFT: 0pt; PADDING-BOTTOM: 0pt; MARGIN-LEFT: 10%; WIDTH: 80%; PADDING-TOP: 0pt; POSITION: relative"&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;!-- COMMAND=ADD_TABLEWIDTH,"100%" --&gt;&lt;/font&gt;&lt;/p&gt;
&lt;!-- User-specified TAGGED TABLE --&gt;
&lt;div align="center"&gt;
&lt;table cellspacing="0" cellpadding="0" width="100%" border="0"&gt;
&lt;tr style="HEIGHT: 0px"&gt;&lt;!-- TABLE COLUMN WIDTHS SET --&gt;
&lt;td style="FONT-FAMILY: times" align="left"&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" width="12"&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" align="right" width="6"&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" width="68"&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" width="12"&gt;&lt;/td&gt;&lt;!-- TABLE COLUMN WIDTHS END --&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="bottom"&gt;
&lt;th style="FONT-FAMILY: times" align="left"&gt;&lt;font size="2"&gt;&lt;i&gt;At December&amp;nbsp;31, 2009&lt;/i&gt;&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times" align="center" colspan="2"&gt;&lt;font size="2"&gt;Stated Limit&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;&lt;/tr&gt;
&lt;tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="bottom"&gt;
&lt;th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="4"&gt;&amp;nbsp;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&amp;nbsp;&lt;/th&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="bottom"&gt;
&lt;th style="FONT-FAMILY: times" align="left"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times" align="center" colspan="2"&gt;&lt;font size="2"&gt;&lt;i&gt;(In billions)&lt;/i&gt;&lt;/font&gt;&lt;br /&gt;&lt;/th&gt;
&lt;th style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/th&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="#CCEEFF"&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Constellation Energy guarantees&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;10.1&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="white"&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;BGE guarantees&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;0.3&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="top"&gt;
&lt;td style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" valign="bottom" colspan="4"&gt;&amp;nbsp;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="HEIGHT: 0px" valign="top" bgcolor="#CCEEFF"&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;
&lt;p style="MARGIN-LEFT: 10pt; TEXT-INDENT: -10pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Total guarantees&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom" align="right"&gt;&lt;font size="2"&gt;10.4&lt;/font&gt;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&lt;font size="2"&gt;&amp;nbsp;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="FONT-SIZE: 1.5pt; HEIGHT: 0px" valign="top"&gt;
&lt;td style="BORDER-BOTTOM: #000000 2.25pt double; FONT-FAMILY: times" valign="bottom" colspan="4"&gt;&amp;nbsp;&lt;/td&gt;
&lt;td style="FONT-FAMILY: times" valign="bottom"&gt;&amp;nbsp;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;
&lt;!-- end of user-specified TAGGED TABLE --&gt;&lt;/div&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;At December&amp;nbsp;31, 2009, Constellation Energy had a total of $10.4&amp;nbsp;billion in guarantees outstanding related to loans, credit facilities, and contractual performance of certain of its subsidiaries as described below. &lt;/font&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li style="list-style: none"&gt;
&lt;dl compact="compact"&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Constellation Energy guaranteed a face amount of $10.1&amp;nbsp;billion as follows: &lt;/font&gt;
&lt;dl compact="compact"&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;$9.4&amp;nbsp;billion on behalf of our merchant energy subsidiaries to allow those subsidiaries the flexibility needed to conduct business with counterparties without having to post other forms of collateral. Our estimated net exposure for obligations under commercial transactions covered by these guarantees was approximately $2&amp;nbsp;billion at December&amp;nbsp;31, 2009, which represents the total amount the parent company could be required to fund based on December&amp;nbsp;31, 2009 market prices. For those guarantees related to our derivative liabilities, the fair value of the obligation is recorded in our Consolidated Balance Sheets. &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;$0.5&amp;nbsp;billion primarily on behalf of CENG's nuclear generating facilities for nuclear insurance and credit support to ensure these plants have funds to meet expenses and obligations to safely operate and maintain the plants. We recorded the fair value of $12.3&amp;nbsp;million for these guarantees on our Consolidated Balance Sheets.&lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;$0.2&amp;nbsp;billion to its other nonregulated businesses. &lt;/font&gt;&lt;/dd&gt;&lt;/dl&gt;&lt;/dd&gt;&lt;/dl&gt;
&lt;dl&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;BGE guaranteed the Trust Preferred Securities of $250.0&amp;nbsp;million of BGE Capital Trust II.&lt;/font&gt;&lt;/dd&gt;&lt;/dl&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Contingencies &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Litigation &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;In the normal course of business, we are involved in various legal proceedings. We discuss the significant matters below. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Merger with MidAmerican&lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Beginning September&amp;nbsp;18, 2008, seven shareholders of Constellation Energy filed lawsuits in the Circuit Court for Baltimore City, Maryland challenging the then-pending merger with MidAmerican. Four similar suits were filed by other shareholders of Constellation Energy in the United States District Court for the District of Maryland. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The lawsuits claim that the merger consideration was inadequate and did not maximize value for shareholders, that the sales process leading up to the merger was flawed, and that unreasonable deal protection devices were agreed to in order to ward off competing bids. The federal lawsuits also assert that the conversion of the Preferred Stock issued to MidAmerican into debt is not permitted under Maryland law. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The termination of the MidAmerican merger renders moot the claims attempting to enjoin the merger with MidAmerican. One of the federal merger cases was voluntarily dismissed on December&amp;nbsp;31, 2008, and the other federal merger cases were dismissed as moot on May&amp;nbsp;27, 2009. Plaintiffs' counsel in six of the seven state merger cases have filed dismissals without prejudice of their MidAmerican merger claims. In addition, on October&amp;nbsp;27, 2009 certain counsel in the state merger cases jointly moved for approval of a settlement regarding claims for attorneys' fees, which the court approved on November&amp;nbsp;16, 2009. We believe there are meritorious defenses to any claims or requests for relief that might possibly remain regarding this matter. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Securities Class Action&lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Three federal securities class action lawsuits have been filed in the United States District Courts for the Southern District of New York and the District of Maryland between September 2008 and November 2008. The cases were filed on behalf of a proposed class of persons who acquired publicly traded securities, including the Series&amp;nbsp;A Junior Subordinated Debentures (Debentures), of Constellation Energy between January&amp;nbsp;30, 2008 and September&amp;nbsp;16, 2008, and who acquired Debentures in an offering completed in June 2008. The securities class actions generally allege that Constellation Energy, a number of its present or former officers or directors, and the underwriters violated the securities laws by issuing a false and misleading registration statement and prospectus in connection with Constellation Energy's June&amp;nbsp;27, 2008 offering of Debentures. The securities class actions also allege that Constellation Energy issued false or misleading statements or was aware of material undisclosed information which contradicted public statements including in connection with its announcements of financial results for 2007, the fourth quarter of 2007, the first quarter of 2008 and the second quarter of 2008 and the filing of its first quarter 2008 Form&amp;nbsp;10-Q. The securities class actions seek, among other things, certification of the cases as class actions, compensatory damages, reasonable costs and expenses, including counsel fees, and rescission damages. &lt;/font&gt;&lt;/p&gt;&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Southern District of New York granted the defendants' motion to transfer the two securities class actions filed there to the District of Maryland, and the actions have since been transferred for coordination with the securities class action filed there. On June&amp;nbsp;18, 2009, the court appointed a lead plaintiff, who filed a consolidated amended complaint on September&amp;nbsp;17, 2009. On November&amp;nbsp;17, 2009, the defendants moved to dismiss the consolidated amended complaint in its entirety. We are unable at this time to determine the ultimate outcome of the securities class actions or their possible effect on our, or BGE's financial results. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;ERISA Actions &lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;In the fall of 2008, multiple class action lawsuits were filed in the United States District Courts for the District of Maryland and the Southern District of New York against Constellation Energy; Mayo A. Shattuck III, Constellation Energy's Chairman of the Board, President and Chief Executive Officer; and others in their roles as fiduciaries of the Constellation Energy Employee Savings Plan. The actions, which have been consolidated into one action in Maryland (the Consolidated Action), allege that the defendants, in violation of various sections of ERISA, breached their fiduciary duties to prudently and loyally manage Constellation Energy Savings Plan's assets by designating Constellation Energy common stock as an investment, by failing to properly provide accurate information about the investment, by failing to avoid conflicts of interest, by failing to properly monitor the investment and by failing to properly monitor other fiduciaries. The plaintiffs seek to compel the defendants to reimburse the plaintiffs and the Constellation Energy Savings Plan for all losses resulting from the defendants' breaches of fiduciary duty, to impose a constructive trust on any unjust enrichment, to award actual damages with pre- and post-judgment interest, to award appropriate equitable relief including injunction and restitution and to award costs and expenses, including attorneys' fees. On October&amp;nbsp;2, 2009, the defendants moved to dismiss the consolidated complaint in its entirety. We are unable at this time to determine the ultimate outcome of the Consolidated Action or its possible effects on our, or BGE's, financial results. &lt;/font&gt;&lt;/p&gt;&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Mercury &lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Since September 2002, BGE, Constellation Energy, and several other defendants have been involved in numerous actions filed in the Circuit Court for Baltimore City, Maryland alleging mercury poisoning from several sources, including coal plants formerly owned by BGE. The plants are now owned by a subsidiary of Constellation Energy. In addition to BGE and Constellation Energy, approximately 11 other defendants, consisting of pharmaceutical companies, manufacturers of vaccines, and manufacturers of Thimerosal have been sued. Approximately 70 cases, involving claims related to approximately 132 children, have been filed to date, with each claimant seeking $20&amp;nbsp;million in compensatory damages, plus punitive damages, from us. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The claims against BGE and Constellation Energy have been dismissed in all of the cases either with prejudice based on rulings by the Court or without prejudice based on voluntary dismissals by the plaintiffs' counsel. Plaintiffs may attempt to pursue appeals of the rulings in favor of BGE and Constellation Energy once the cases are finally concluded as to all defendants. We believe that we have meritorious defenses and intend to defend the actions vigorously. However, we cannot predict the timing, or outcome, of these cases, or their possible effect on our, or BGE's, financial results. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Asbestos &lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Since 1993, BGE and certain Constellation Energy subsidiaries have been involved in several actions concerning asbestos. The actions are based upon the theory of "premises liability," alleging that BGE and Constellation Energy knew of and exposed individuals to an asbestos hazard. In addition to BGE and Constellation Energy, numerous other parties are defendants in these cases. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Approximately 494 individuals who were never employees of BGE or Constellation Energy have pending claims each seeking several million dollars in compensatory and punitive damages. Cross-claims and third party claims brought by other defendants may also be filed against BGE and Constellation Energy in these actions. To date, most asbestos claims which have been resolved have been dismissed or resolved without any payment and a small minority have been resolved for amounts that were not material to our financial results. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;BGE and Constellation Energy do not know the specific facts necessary to estimate their potential liability for these claims. The specific facts we do not know include:&lt;/font&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li style="list-style: none"&gt;
&lt;dl compact="compact"&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;the identity of the facilities at which the plaintiffs allegedly worked as contractors, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;the names of the plaintiffs' employers, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;the dates on which and the places where the exposure allegedly occurred, and &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;the facts and circumstances relating to the alleged exposure. &lt;/font&gt;&lt;/dd&gt;&lt;/dl&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Until the relevant facts are determined, we are unable to estimate what our, or BGE's, liability might be. Although insurance and hold harmless agreements from contractors who employed the plaintiffs may cover a portion of any awards in the actions, the potential effect on our, or BGE's, financial results could be material.&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Environmental Matters&lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Solid and Hazardous Waste&lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;In 1999, the EPA proposed to add the 68th&amp;nbsp;Street Dump in Baltimore, Maryland to the Superfund National Priorities List, which is its list of sites targeted for clean-up and enforcement, and sent a general notice letter to BGE and 19 other parties identifying them as potentially liable parties at the site. In March 2004, we and other potentially responsible parties formed the 68th&amp;nbsp;Street Coalition and entered into consent order negotiations with the EPA to investigate clean-up options for the site under the Superfund Alternative Sites Program. In May 2006, a settlement among the EPA and 19 of the potentially responsible parties, including BGE, with respect to investigation of the site became effective. The settlement requires the potentially responsible parties, over the course of several years, to identify contamination at the site and recommend clean-up options. BGE is indemnified by a wholly owned subsidiary of Constellation Energy for most of the costs related to this settlement and clean-up of the site. The clean-up costs will not be known until the investigation is closer to completion, which is expected by mid-2010. The completed investigation will provide a range of remediation alternatives to the EPA, and the EPA is expected to select one of the alternatives by the end of the first quarter of 2011. The clean-up costs we incur could have a material effect on our financial results.&lt;/font&gt;&lt;/p&gt;&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Air Quality &lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;In May 2007, a subsidiary of Constellation Energy entered into a consent decree with the Maryland Department of the Environment to resolve alleged violations of air quality opacity standards at three fossil fuel plants in Maryland. The consent decree requires the subsidiary to pay a $100,000 penalty, provide $100,000 to a supplemental environmental project, and install technology to control emissions from those plants. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;In January 2009, the EPA issued a notice of violation (NOV) to a subsidiary of Constellation Energy, as well as the other owners and the operator of the Keystone coal-fired power plant in Shelocta, Pennsylvania. We hold an approximately 21% interest in the Keystone plant. The NOV alleges that the plant performed various capital projects beginning in 1984 without complying with the new source review permitting requirements of the Clean Air Act. The EPA also contends that the alleged failure to comply with those requirements are continuing violations under the plant's air permits. The EPA could seek civil penalties under the Clean Air Act for the alleged violations. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The owners and operator of the Keystone plant are investigating the allegations and have entered into discussions with the EPA. We believe there are meritorious defenses to the allegations contained in the NOV. However, we cannot predict the outcome of this proceeding and it is not possible to determine our actual liability, if any, at this time. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Water Quality &lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;In October 2007, a subsidiary of Constellation Energy entered into a consent decree with the Maryland Department of the Environment relating to groundwater contamination at a third party facility that was licensed to accept fly ash, a byproduct generated by our coal-fired plants. The consent decree requires the payment of a $1.0&amp;nbsp;million penalty, remediation of groundwater contamination resulting from the ash placement operations at the site, replacement of drinking water supplies in the vicinity of the site, and monitoring of groundwater conditions. We recorded a liability in our Consolidated Balance Sheets of approximately $8.4&amp;nbsp;million, which includes the $1&amp;nbsp;million penalty and our estimate of probable costs to remediate contamination, replace drinking water supplies, monitor groundwater conditions, and otherwise comply with the consent decree. We have paid approximately $4.8&amp;nbsp;million of these costs as of December&amp;nbsp;31, 2009, resulting in a remaining liability at December&amp;nbsp;31, 2009 of $3.6&amp;nbsp;million. We estimate that it is reasonably possible that we could incur additional costs of up to approximately $10&amp;nbsp;million more than the liability that we accrued. &lt;/font&gt;&lt;/p&gt;&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Investment in CENG &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;On November&amp;nbsp;6, 2009, we completed the sale of a 49.99% membership interest in CENG to EDF. As a result of the sale, we now hold a 50.01% interest in CENG. As a 50.01% owner in CENG, we are subject to certain capital contribution requirements, which may be greater than the amount planned and, therefore, could have an adverse impact on our financial results. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;In addition, if the fair value of our investment in CENG declines to a level below our carrying value and the decline is considered other-than-temporary, we may write down the investment to fair value, which would adversely affect our financial results. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;We are also exposed to the same risks to which CENG is exposed. CENG owns and operates three nuclear generating facilities and is exposed to risks associated with operating these facilities and the risks of a nuclear accident. &lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Operating Risks &lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;The operation of nuclear generating facilities involve routine risks, including, &lt;/font&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li style="list-style: none"&gt;
&lt;dl compact="compact"&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;mechanical or structural problems,&lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;inadequacy or lapses in maintenance protocols, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;cost of storage, handling and disposal of nuclear materials, including the availability or unavailability of a permanent repository for spent nuclear fuel, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;regulatory actions, including shut down of units because of public safety concerns, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;limitations on the amounts and types of insurance coverage commercially available, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;uncertainties regarding both technological and financial aspects of decommissioning nuclear generating facilities, &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;terrorist attacks, and &lt;/font&gt;&lt;/dd&gt;
&lt;dt style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&amp;#149;&lt;/font&gt;&lt;/dt&gt;
&lt;dd style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;environmental risks.&lt;/font&gt;&lt;/dd&gt;&lt;/dl&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;i&gt;Nuclear Accidents &lt;/i&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;CENG is required to insure itself against public liability claims resulting from nuclear incidents to the full limit of public liability. This limit of liability consists of the maximum available commercial insurance of $375&amp;nbsp;million and mandatory participation in an industry-wide retrospective premium assessment program. The retrospective premium assessment is $117.5&amp;nbsp;million per reactor, per incident, increasing the total amount of insurance for public liability to approximately $12.6&amp;nbsp;billion. Under the retrospective assessment program, CENG can be assessed up to $587.5&amp;nbsp;million per incident at any commercial reactor in the country, payable at no more than $87.5&amp;nbsp;million per incident per year. In the event of a nuclear accident, the cost of property damage and other expenses incurred may exceed CENG's insurance coverage. As a result, uninsured losses or the payment of retrospective insurance premiums could each have a significant adverse impact to CENG's, and therefore, our financial results as a 50.01% owner in CENG. Each of Constellation Energy and EDF has guaranteed the obligations of CENG under these insurance programs in proportion to their respective membership interests. &lt;/font&gt;&lt;/p&gt;&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;&lt;b&gt;Non-Nuclear Property Insurance&lt;/b&gt;&lt;/font&gt;&lt;/p&gt;
&lt;p style="FONT-FAMILY: times"&gt;&lt;font size="2"&gt;Our conventional property insurance provides coverage of $1.0&amp;nbsp;billion per occurrence for Certified acts of terrorism as defined under the Terrorism Risk Insurance Extension Act of 2005 and the Terrorism Risk Insurance Program Reauthorization Act of 2007. Our conventional property insurance program also provides coverage for non-certified acts of terrorism up to an annual aggregate limit of $1.0&amp;nbsp;billion. If a terrorist act occurs at any of our facilities, it could have a significant adverse impact on our financial results.&lt;/font&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;
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          <NonNumericTextHeader>12 Commitments, Guarantees, and Contingencies
Commitments
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