PacifiCorp 2007 Integrated Resource Plan (May 30, 2007)

PacifiCorp – 2007 IRPChapter 5 – Resource Options• Subcategory 5 – Thermal energy storage, small commercial and industrial, with a focus oncooling systems for summer hoursClass 2 Demand-side ManagementFor Class 2 programs (non-dispatchable, firm energy efficiency programs), PacifiCorp updatedand added new sample load shapes to reflect energy efficiency program opportunities in the marketas identified by recent studies such as the Northwest Power Planning Council’s 5 th PowerPlan. For example, based on its review, the company determined that residential lighting loadshapes for the west and east control areas should be added. Table 5.6 lists the load shapesadopted for the 2007 IRP. Chapter 6 discusses how these sample load shapes were used to developcost-effectiveness values of additional Class 2 resources.Note that Class 2 DSM was not included as a resource option in portfolio modeling. The companyis working to complete a more comprehensive system-wide demand-side management potentialstudy scheduled to be completed by June 2007. This study will be used to develop modeledresource options for Classes 1, 2 and 3 for the next IRP.Table 5.6 – Sample Load Shapes Developed for 2007 IRP Decrement AnalysisEastcommercial coolingcommercial lightingresidential coolingsystem loadresidential lighting*residential – whole house (including AC)** New sample load shapes for the 2007 IRPWestcommercial coolingcommercial lightingresidential coolingsystem loadresidential lighting*residential - heating*Class 3 Demand-side ManagementFor Class 3 DSM (price responsive programs), PacifiCorp commissioned Quantec to developproxy supply curves for three Class 3 program concepts: curtailable rates, critical peak pricing,and demand buyback/bidding (DBB) products (See Appendix B). As with the Class 1 DSM resources,the company obtained and considered public feedback from its February 2006 DSMworkshop in selecting these Class 3 DSM resources for the IRP.Class 4 Demand-side ManagementClass 4 resources are sought by the company. However, these resources are not currently takeninto consideration within the 2007 IRP because they cannot be relied upon for planning purposesor cannot be easily quantified. Over time, most Class 4 DSM savings manifest themselves withinthe company’s loads and load forecasts.Resource Options and AttributesClass 1 Demand-side ManagementTables 5.7 and 5.8 summarize the key attributes for the five DSM Class 1 program subcategorieslisted above for the west and east control areas respectively. Appendix B provides more informationon how the attributes were derived. Attributes are provided for three scenarios: low, base,104