History of IDACORP, Inc. and Idaho Power Company

Idaho Power CompanyIdaho-based IDACORP, formed in 1998, is a holding company comprised of Idaho Power Company, a regulated electric utility; IDACORP Financial, a holder of affordable housing projects and other real estate investments; and Ida-West Energy, an operator of small hydroelectric generation projects that satisfy the requirements of the Public Utility Regulatory Policies Act of 1978.

IDACORP was formed Oct. 1, 1998, following approval by Idaho Power shareholders, the Federal Energy Regulatory Commission and the public utility commissions of Idaho, Oregon, Nevada and Wyoming (states where IDACORP has conducted business or has holdings).

Idaho mapUnder the holding company structure, Idaho Power Company continues as it has since 1916 as a regulated utility dedicated to providing quality electric service to more than 535,000 general business customers in a 24,000-square-mile service area. This area covers southern Idaho and eastern Oregon.

The company owns and operates 17 hydroelectric plants on the Snake River and its tributaries. It also owns three natural gas-fired power plants and partial interest in three coal-fired generating stations.

Information on Idaho Power Company's regulatory framework and rate mechanisms is available on its website.

Idaho Power Company celebrated its 100-year anniversary in 2016. To view more information about Idaho Power Company’s history throughout the past century, follow this link.

100-year anniversary


Together, IDACORP's business units and subsidiaries provide our owners a strong, diversified, competitive investment.

Idaho Power - established in 1916, our regulated electric utility serves more than 535,000 residential, business, agricultural and industrial customers (as of September 30, 2016) in a 24,000-square-mile service area.

IDACORP Financial - holds non-utility investments, primarily in affordable housing projects and historic rehabilitation developments that provide tax credits.

Ida-West Energy - established in 1989, our independent power project development company has ownership in nine hydroelectric projects with 44.6 megawatts of generating nameplate capacity.

Important Note: You are now leaving IDACORP’s website and are going to a website that is not operated by IDACORP. IDACORP is not responsible for the content or availability of linked sites. ABOUT THIRD PARTY LINKS ON OUR SITE IDACORP offers links to other third party websites that may be of interest to our website visitors. The links provided in our website are provided solely for your convenience and may assist you in locating other useful information on the Internet. When you click on these links you will leave the IDACORP website and will be redirected to another site. These sites are not under the control of IDACORP. IDACORP is not responsible for the content of linked third party websites. We are not an agent for these third parties nor do we endorse or guarantee their products or services. We make no representation or warranty regarding the accuracy of the information contained in the linked sites. We suggest that you always verify the information obtained from linked websites before acting upon this information. Also, please be aware that the security and privacy policies on these sites may be different than IDACORP’s policies, so please read third party privacy and security policies closely. If you have any questions or concerns about the products and services offered on linked third party websites, please contact the third party directly.

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