Integrated Resource Plan
The integrated resource plan (IRP) is a comprehensive decision support tool and road map for meeting the company's objective of providing reliable and least-cost electric service to all of our customers while addressing the substantial risks and uncertainties inherent in the electric utility business. The IRP is developed with considerable public involvement from state utility commission staff, state agencies, customer and industry advocacy groups, project developers, and other stakeholders. The key elements of the IRP include: a finding of resource need, focusing on the first 10 years of a 20-year planning period; the preferred portfolio of supply-side and demand-side resources to meet this need; and an action plan that identifies the steps we will take during the next two to four years to implement the plan.
PacifiCorp prepares its integrated resource plan on a biennial schedule, filing its plan with state utility commissions during each odd numbered year. For five of its six state jurisdictions, the Company receives a formal notification as to whether the IRP meets the commissions’ IRP standards and guidelines, referred to as IRP acknowledgement. For even-numbered years, the Company updates its preferred resource portfolio and action plan by considering the most recent resource cost, load forecast, regulatory, and market information.
The IRP uses system modeling tools as part of its analytical framework to determine the long-run economic and operational performance of alternative resource portfolios. These models simulate the integration of new resource alternatives with our existing assets, thereby informing the selection of a preferred portfolio judged to be the most cost-effective resource mix after considering risk, supply reliability, uncertainty, and government energy resource policies.
The 2015 IRP Update (filed March 31, 2016) reflects updated information since the company filed the 2015 IRP. The 2015 IRP Update addresses updates to the planning environment, which include release of the U.S. Environmental Protection Agency’s final rule for the Clean Power Plan, changes to renewable portfolio standards in the states of California and Oregon, and activities to explore the potential formation of a regional ISO. The 2015 IRP Update also reports an updated load and resource balance and an updated resource portfolio. Confidential Appendix B contains updated economic analysis of regional haze compliance alternatives for Naughton Unit 3. The report and the redacted version of Appendix B are available via the link below. A confidentiality agreement is required to view the confidential appendix.
The 2015 IRP (filed March 31, 2015) consists of three volumes. Volume I is the company's resource plan, which describes the planning environment, a finding of resource need, the resource portfolio modeling process and assumptions, the preferred resource portfolio, and the action plan. Volume II consists of appendices that provide detailed modeling and study results, as well as additional planning and IRP regulatory compliance information. Volume III provides analysis on coal-fired generating assets and compliance alternatives for regional haze requirements.
Below are links to PacifiCorp’s IRP reports and related documents and presentations.
For more information, please contact our Resource Planning department at email@example.com or 503-813-5245.
2017 IRP (March 31, 2017)
2015 IRP Update (March 31, 2016)
2015 IRP (March 31, 2015)
2013 IRP Update (March 31, 2014)
2013 IRP (April 30, 2013)
2012 Wind Integration Study
Please see the 2013 IRP Volume II - Appendix H for the 2012 Wind Integration Study
Distributed Generation Potential Study Memos
2013 Demand-side Management Potential Study and Other Supplemental Resources
System Operational and Reliability Benefits Tool
2011 IRP Update (March 30, 2012)
State Renewable Portfolio Standard Compliance Filing
2011 IRP (March 31, 2011)
2011 IRP Addendum (June 27, 2011)
2011 IRP Presentations
2010 Wind Integration
2010 Geothermal Resource Study
Loss of Load Study
Edison Electric Institute
Supplemental Coal Replacement Study
2008 IRP Update (March 31, 2010)
2008 IRP (May 28, 2009)
2007 IRP Update (June 11, 2008)
2007 IRP (May 30, 2007)
On May 30, 2007 PacifiCorp filed with state commissions the 2007 Integrated Resource Plan. The main IRP report, which presents PacifiCorp's resource planning principles and objectives, a profile of major external influences on the company's planning effort, a resource needs assessment, options considered for resource portfolio development, the modeling and risk analysis approach, portfolio evaluation results, and an action plan. The appendices provide additional planning and IRP regulatory compliance information, as well as additional modeling results.
Renewable Energy Action Plan (May 2007)
MidAmerican Energy Holdings Company ("MEHC") made a commitment to work with the states to produce a Renewable Energy Action Plan ("the Renewable Plan") as part of its acquisition of PacifiCorp. PacifiCorp committed to filing a ten-year plan, concurrent with its next IRP filing, showing how it plans to acquire 1,400 megawatts of new cost-effective renewable resources by 2015, including specific milestones over a ten year planning period as to when resources will be added. Consistent with the commitments, MEHC and PacifiCorp filed a preliminary plan for achieving the 1,400 megawatt renewable target on September 21, 2006. This document is an updated Renewable Energy Action Plan and is being filed concurrent with PacifiCorp's 2007 Integrated Resource Plan. The 2007 Integrated Resource Plan identified 2,000 megawatts of renewable resources targeted by the end of 2013. The Renewable Plan sets forth the objectives and action items to meet the commitment of acquiring cost-effective renewable resources by the target date. The Renewable Energy Action Plan is divided into four categories: Resource Acquisition, Institutional, System Operations and Transmission.
2004 IRP Update (November 3, 2005)
On November 3, 2005, the Resource Planning department filed with the commissions an update to the 2004 IRP for informational purposes. The 2004 IRP Update incorporates a resource portfolio analysis that accounts for PacifiCorp's latest resource forecasts and revised modeling assumptions. This update stems from PacifiCorp's commitment to revisit and refresh the IRP Action Plan each year.
2004 IRP (January 20, 2005)
PacifiCorp filed its 2004 IRP on January 20, 2005. PacifiCorp's 2004 IRP consists of two volumes: 1) The main IRP document which presents the PacifiCorp planning context, a profile of resource needs, analytical methods used, modeling results, analysis conclusions, and an Action Plan, 2) the Technical Appendix.