2.4.0.82107100 - Disclosure - Regulation and Ratestruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001085392duration2013-01-01T00:00:002013-06-30T00:00:001true 1psd_RegulationAndRatesAbstractpsd_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Regulation and Rates [Abstract]2false 2psd_RegulationAndRatesDisclosureTextBlockpsd_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00<div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;">Regulation and Rates</div></td></tr></table><div style="line-height:120%;text-align:justify;font-size:10pt;"> </div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;">On May 7, 2012, the Washington Commission issued its order in PSE's consolidated electric and natural gas general rate case filed in June 2011, approving a general rate increase for electric customers of $63.3 million or 3.2% annually, and an increase in natural gas rates of $13.4 million or 1.3% annually. The rate increases for electric and natural gas customers became effective May 14, 2012. In its order, the Washington Commission approved a weighted cost of capital of 7.8% and a capital structure that included 48.0% common equity with a return on equity of 9.8%. </div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;">On June 1, 2012, PSE filed with the Washington Commission a petition seeking an Accounting Order authorizing PSE to change the existing natural gas conservation tracker mechanism into a rider mechanism to be consistent with the electric conservation program recovery. The accounting petition requested the ability to recover the costs associated with the Company's current gas conservation programs via transfers from amounts deferred for the overrecovery of commodity costs in the Company's PGA mechanism. The Washington Commission granted PSE's accounting petition on June 28, 2012. The approved accounting petition resulted in an increase to gas conservation revenues of $6.9 million and an increase to conservation amortization expense of $6.6 million, the difference being recognized as revenue sensitive taxes.</div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;">On October 31, 2012, the Washington Commission approved PSE's PGA natural gas tariff filing and allowed the rates to go into effect on November 1, 2012 on a temporary basis subject to revision. The rates resulted in a decrease to the rates charged to customers under the PGA. On May 1, 2013, the Washington Commission approved the proposed rates and allowed them to be made permanent. The estimated revenue impact of the approved change is a decrease of $77.0 million, or 7.7% annually. The rate adjustment has no impact on PSE's net income.</div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;">On January 31, 2013, the Washington Commission approved a rate change to PSE's Federal Incentive Tracker tariff, effective February 1, 2013, which incorporated the effects of the Treasury Grant related to the Lower Snake River wind generation project and keeping the ten year amortization period and inclusion of interest on the unamortized balance of the grants. The rate change will pass through 11 months of amortization for both grants to eligible customers over 11 months beginning February 1, 2013, including grant amortization pass-back of $34.6 million and interest pass-back of $23.8 million. This represents an overall average rate decrease of 2.76%.</div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;">On June 25, 2013, the Washington Commission approved PSE's electric and natural gas decoupling mechanism and expedited rate filing (ERF) tariff filings, effective July 1, 2013. The estimated revenue impact of the decoupling mechanism is an increase for electric of $21.4 million, or 1.0% annually, and an increase for natural gas of $10.8 million, or 1.1% annually. The estimated revenue impact of the ERF filings is an increase for electric of $30.7 million, or 1.5% annually, while the revenue impact for natural gas is a decrease of $2.0 million, or a decrease of 0.2% annually. In its order, the Washington Commission approved a weighted cost of capital of 7.77% and a capital structure that included 48.0% common equity with a return on equity of 9.8%.</div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;">On July 24, 2013, the Public Counsel Division of the Washington State Attorney General's Office (Public Counsel) and the Industrial Customers of Northwest Utilities (ICNU) each filed a petition in Thurston County Superior Court seeking judicial review of various aspects of the Washington Commission's ERF and decoupling mechanism final order. The parties petition argues that the order violates various procedural and substantive requirements of the Washington Administrative Procedure Act, and so requests that it be vacated and that the matter be remanded to the Washington Commission. PSE is evaluating these petitions and cannot at this time predict the outcomes of these matters.</div></div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure of the events that have or may impact rates including, but not limited to, pending or recently concluded regulatory proceedings.No definition available.false0Regulation and RatesfalseRegulation and RatesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.pugetenergy.com/role/RegulationAndRates12