Integrated Resource Planning

PacifiCorp filed its 2008 Integrated Resource Plan (IRP) with its state regulatory agencies on May 28 and 29, 2009. PacifiCorp's 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 its customers while addressing the substantial risks inherent in the electric utility business. PacifiCorp developed the 2008 IRP during a time of volatile economic and market conditions, and given continued uncertainty regarding federal policies for regulating greenhouse gases and promoting clean generation technologies.

The IRP was also developed with considerable public involvement from customer interest groups, regulatory staff, regulators and other stakeholders. For example, the company held seven general public meetings, two technical workshops and seven state focus meetings for a total of 16 public meetings. The meetings were held from early 2008 through March 2009 to engage stakeholders on important planning issues and solicit comments on IRP analysis methods and assumptions. The key elements of the 2008 IRP include a finding of resource need—focusing on the 10-year period 2009-2018, the preferred portfolio of supply-side and demand-side resources to meet this need, and an action plan that identifies the steps the Company will take during the next two to four years to implement the plan.

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 PacifiCorp's existing assets over a 20-year period, thereby informing the selection of a preferred portfolio judged to be the most cost-effective resource mix after considering risk, uncertainty, and government energy resource policies.

PacifiCorp's 2008 IRP consists of two volumes. Volume 1 is the Company's resource plan, which describes the planning environment, a finding of resource need, the resource portfolio modeling process and results, the preferred resource portfolio, and the action plan. Volume 2 consists of appendices that provide additional planning and IRP regulatory compliance information, as well as detailed modeling results.

Below are links to PacifiCorp's latest IRP information. For more information, please contact PacifiCorp's Resource Planning Department at irp@PacifiCorp.com or (503) 813-5245.

2008 IRP (May 28, 2009)

2007 IRP Update (June 11, 2008)

2007 Integrated Resource Plan Update

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 workwith 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.

2007 PacifiCorp Renewable Energy Action Plan

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 Update

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.

2003 IRP Update (Filed October 2003)