150707_PACIRP.pdf

Case No. PAC-E-15-04, Order No. 33299
Contact: Gene Fadness [phone], 890-2712
www.puc.idaho.gov

Commission taking comments through Aug. 7
on PacifiCorp long-range planning document

BOISE (July 8, 2015) – A long-range planning document filed by PacifiCorp indicates the six-
state utility intends to meet nearly all of its future load-growth through energy efficiency and
short-term wholesale market purchases.

The Idaho Public Utilities Commission is taking comment through August 7 on PacifiCorp’s plan
to meet customer demand for the next 10 years. The electric utility is required to file an
updated Integrated Resource Plan every two years. PacifiCorp operates as Rocky Mountain
Power in eastern Idaho and much of Utah and Wyoming.

A 59 percent increase in projected energy efficiency savings from the 2013 plan is anticipated
to meet 86 percent of the company’s forecasted load growth over the next decade, according
to the plan.

PacifiCorp is also projecting a reduction in the rate of load growth from what it anticipated in
2013 due to the continued phase-in of federal lighting standards and increased efficiencies in
heating, cooling, water heating, use of appliances and industrial process end-uses.

PacifiCorp’s preferred portfolio of energy sources includes 816 megawatts of energy from
power purchase agreements with 36 wind and solar projects, all scheduled to come on line by
the end of 2016.

The Environmental Protection Agency’s Regional Haze compliance requirements prompted the
company’s decision to convert some of its coal generation to natural gas by 2018 and install
emissions control equipment at its Wyodak, Dave Johnston Unit 3 and Cholla Unit 4 coal
projects. The plan states that about 2,800 MW of existing coal generation will either be retired
or converted to natural gas-fired generation over the next decade. PacifiCorp says these
changes have the potential to save customers hundreds of millions of dollars.

The utility also plans to have access to more generation through transmission expansion and
continues to support permitting efforts for three projects: Energy Gateway West, Energy
Gateway South and Boardman to Hemingway. It expects to complete construction of the Walla
Walla to McNary line by 2017.

The Idaho commission’s role is to determine if the utility has met all the requirements for filing
a comprehensive plan. Acceptance of the plan does not mean the commission approves all the
projects in the plan. Projects are considered more thoroughly when the utility applies for rate
recovery during the course of a rate cases or when the utility files for a certificate to build new
generation or transmission.

Comments are accepted via e-mail by accessing the commission’s Website at
www.puc.idaho.gov and clicking on "Case Comment Form,” under the “Consumers” heading.
Fill in the case number (PAC-E-15-04) and enter your comments. Comments can also be mailed
to P.O. Box 83720, Boise, ID 83720-0074 or faxed to [phone].

A copy of the company’s application and its Integrated Resource Plan and appendices are also
available on the web site by clicking on “Open Cases” under the “Electric” heading and scrolling
down to the above case number.

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