2.2.0.25falsefalse006070 - Disclosure - RETIREMENT PLAN AND POST-RETIREMENT BENEFITStruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $c00005http://www.sec.gov/CIK0000741508duration2011-01-01T00:00:002011-03-31T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u001Standardhttp://www.xbrl.org/2003/instancesharesxbrli0u002Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0nve_NotesToFinancialStatementsAbstractnvefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseNotes to Financial Statements [Abstract]3false0us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">NOTE 7.                      RETIREMENT PLAN AND POST-RETIREMENT BENEFITS</div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div style="TEXT-INDENT: 36pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">NVE has a single employer defined benefit pension and other postretirement plan covering substantially all employees of NVE and the Utilities.  NVE allocates the unfunded liability and net periodic benefit costs for its pension benefit and other postretirement benefit plans to NPC and SPPC based upon the current, or in the case of the retirees, previous, employment location.  Certain grandfathered and union employees are covered under a benefit formula based on years of service and the employee's highest compensation for a period prior to retirement, while most employees are covered under a cash balance formula with vesting after three years of service.  NVE also has other postretirement plans, including a defined contribution plan which provides medical and life insurance benefits for certain retired employees. A summary of the components of net periodic pension and other postretirement costs for the three months ended March 31 follows.  This summary is based on a December 31, measurement date (dollars in thousands):</div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div align="left"><table style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt" cellspacing="0" cellpadding="0" width="100%"><tr><td valign="bottom" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">NVE</div></td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td valign="bottom">  </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td valign="bottom">  </td><td valign="bottom"> </td><td valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Pension Benefits</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Other Postretirement Benefits</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td style="PADDING-BOTTOM: 2px" valign="bottom">  </td><td style="PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Three Months Ended March 31,</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Three Months Ended March 31,</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td></tr><tr><td style="PADDING-BOTTOM: 2px" valign="bottom">  </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2011</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2010</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2011</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2010</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Service cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">4,607</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">4,727</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">653</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">617</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Interest cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">10,169</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">10,718</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">2,090</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">2,184</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Expected return on plan assets</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(12,192</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(11,069</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(1,596</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(1,556</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td></tr><tr bgcolor="white"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of prior service cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(738</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(448</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(987</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(972</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td></tr><tr bgcolor="#cceeff"><td style="PADDING-BOTTOM: 2px" valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of net loss</div></td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">4,155</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">3,777</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">1,083</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">1,085</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td style="PADDING-BOTTOM: 4px" valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Net periodic benefit cost</div></td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">6,001</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">7,705</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">1,243</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">1,358</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%">  </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" width="52%">  </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" colspan="16" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">The average percentage of NVE net periodic costs capitalized during 2011 and 2010 was 32.20% and 33.20% respectively.</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr></table></div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div align="left"><table style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt" cellspacing="0" cellpadding="0" width="100%"><tr><td valign="bottom" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">NPC</div></td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td valign="bottom">  </td><td valign="bottom"> </td><td valign="bottom" colspan="6"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="6"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td valign="bottom">  </td><td valign="bottom"> </td><td valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Pension Benefits</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Other Postretirement Benefits</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td style="PADDING-BOTTOM: 2px" valign="bottom">  </td><td style="PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Three Months Ended March 31,</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Three Months Ended March 31,</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td></tr><tr><td style="PADDING-BOTTOM: 2px" valign="bottom">  </td><td style="PADDING-BOTTOM: 2px" valign="bottom" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2011</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2010</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2011</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2010</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Service cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">2,445</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">2,392</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">363</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">353</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Interest cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">4,880</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">5,023</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">615</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">619</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Expected return on plan assets</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(6,169</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(5,362</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(590</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(567</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td></tr><tr bgcolor="white"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of prior service cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(470</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(433</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">229</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">236</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td style="PADDING-BOTTOM: 2px" valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of net loss</div></td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">1,690</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">1,764</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">302</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">300</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td style="PADDING-BOTTOM: 4px" valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Net periodic benefit cost</div></td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">2,376</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">3,384</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">919</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">941</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%">  </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" width="52%">  </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" colspan="16" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">The average percentage of NPC net periodic costs capitalized during 2011 and 2010 was 37.23% and 35.93% respectively.</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr></table></div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div align="left"><table style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt" cellspacing="0" cellpadding="0" width="100%"><tr><td valign="bottom">  </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td valign="bottom" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">SPPC</div></td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td valign="bottom">  </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="2"> </td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td valign="bottom">  </td><td valign="bottom"> </td><td valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Pension Benefits</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td><td valign="bottom"> </td><td valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Other Postretirement Benefits</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr><tr><td style="PADDING-BOTTOM: 2px" valign="bottom">  </td><td style="PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Three Months Ended March 31,</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center">Three Months Ended March 31,</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td></tr><tr><td style="PADDING-BOTTOM: 2px" valign="bottom">  </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2011</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2010</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2011</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td><td style="TEXT-ALIGN: center; PADDING-BOTTOM: 2px" valign="bottom"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: center" valign="bottom" colspan="2"><div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt">2010</div></td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Service cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">1,840</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">2,004</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">271</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">245</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Interest cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">5,013</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">5,389</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">1,457</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">1,547</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Expected return on plan assets</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(5,741</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(5,431</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(976</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(961</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td></tr><tr bgcolor="white"><td valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of prior service cost</div></td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(277</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(26</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(1,219</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td><td valign="bottom" width="1%" align="right"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">(1,213</td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap">)</td></tr><tr bgcolor="#cceeff"><td style="PADDING-BOTTOM: 2px" valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of net loss</div></td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">2,412</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">1,969</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">773</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 2px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%">777</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 2px" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td style="PADDING-BOTTOM: 4px" valign="bottom" width="52%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">Net periodic benefit cost</div></td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">3,247</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">3,905</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">306</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td><td style="PADDING-BOTTOM: 4px" valign="bottom" width="1%" align="right"> </td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%">395</td><td style="TEXT-ALIGN: left; PADDING-BOTTOM: 4px" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="52%">  </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"> </td></tr><tr bgcolor="white"><td valign="bottom" colspan="16" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">The average percentage of SPPC net periodic costs capitalized during 2011 and 2010 was 29.30% and 33.70% respectively.</div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"> </td></tr></table></div><div style="TEXT-INDENT: 0pt; DISPLAY: block"> </div><div style="TEXT-INDENT: 36pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">During the three months ended March 31, 2011, NVE did not make any contributions to the pension or other postretirement benefits plans.  At the present time, it is not anticipated that additional funding will be required for either plan in 2011 in order to meet the minimum funding level requirements defined by the Pension Protection Act of 2006.  However, NVE and the Utilities have included in their 2011 assumptions funding levels similar to the 2010 funding.  The amounts to be contributed in 2011 may change subject to market conditions.</div>NOTE 7.                      RETIREMENT PLAN ANDfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescription containing the entire pension and other postretirement benefits disclosure as a single block of text.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS106-2 -Paragraph 20, 21, 22 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5, 6, 7, 8 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Implementation Guide (Q and A) -Number FAS88 -Paragraph 63 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 158 -Paragraph 7, 21, 22 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 30 -Paragraph 26 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-2 -Paragraph 8 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 8 -Subparagraph m Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph h Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph q falsefalseRetirement Plan And Post-Retirement Benefits12RETIREMENT PLAN AND POST-RETIREMENT BENEFITSUnKnownUnKnownUnKnownUnKnownfalsetrue