Idaho Public Utilities Commission

Case No. PAC-E-09-07, Notice of Comment Deadline

October 5, 2009

Contact: Gene Fadness (208) 334-0339, 890-2712



PacifiCorp wants larger discount for accepting non-firm wind generation


PacifiCorp, which does business as Rocky Mountain Power in eastern Idaho, is asking state regulators that it be allowed a larger discount from the price it must pay wind developers for their generation.


Currently, PacifiCorp discounts $5.10 per megawatt-hour off the rate it pays some wind developers. The discount is intended to capture PacifiCorp’s cost of integrating wind generation into its electrical system. PacifiCorp is asking the Idaho Public Utilities Commission that it be allowed to discount $9.96 per MWh from the rate is must pay small-wind developers who qualify under the provisions of the federal Public Utility Regulatory Policies Act of 1978 (PURPA).


Under PURPA, qualifying generators of small-power projects that generate up to 10 megawatts are paid a rate published by the commission. That rate, called an avoided-cost rate, is to represent the cost the utility avoids by buying output from the small-power project instead of generating the power itself or buying it from another power provider.


PacifiCorp’s application does not apply to wind developers who enter into agreements with the utility to deliver output on a firm, hourly basis.


The commission plans to handle this request in a modified procedure that uses written comments rather than conducting a hearing, unless customer comments can demonstrate a need for a public hearing.


Comments are accepted through Oct. 30 and can be submitted via e-mail by accessing the commission’s homepage at and clicking on "Comments & Questions." Fill in the case number (PAC-E-09-07) and enter your comments. Comments can also be mailed to P.O. Box 83720, Boise, ID 83720-0074 or faxed to (208) 334-3762.


A full text of the commission’s notice, along with other documents related to this case, is available on the commission’s Web site. Click on “File Room” and then on “Electric Cases” and scroll down to the above case number.