Filed pursuant to Rule 433 Registration No. 333-122153 October 15, 2007 Final Term Sheet ---------------- 6.25% Secured Medium-Term Notes, Series G due 2037 -------------------------------------------------- IDAHO POWER COMPANY Secured Medium-Term Notes, Series G - -------------------------------------------------------------------------------- Issuer: Idaho Power Company Interest Payment Dates: April 15 and October 15, commencing April 15, 2008 Trade Date: October 15, 2007 Redemption: As specified in Pricing Supplement No. 1 Original Issue Date/Settlement Date: October 18, 2007, dated October 15, 2007. Make Whole to be determined which is the third business day following the Trade at a discount rate equal to the Treasury Rate plus Date. 25 basis points. Principal Amount: $100,000,000 Maturity Date: October 15, 2037 Price to Public: 99.732% of Principal Amount, plus CUSIP: 45138LAT0 accrued interest from the Original Issue Date Purchasers: Purchasers' Discount: 0.75% Wachovia Capital Markets, LLC ($27,500,000) Proceeds to the Company: 98.982% Banc of America Securities LLC ($25,000,000) Interest Rate: 6.25% per annum J.P. Morgan Securities Inc. ($25,000,000) KeyBanc Capital Markets Inc. ($7,500,000) RBC Capital Markets Corporation ($5,000,000) Wedbush Morgan Securities Inc. ($5,000,000) Piper Jaffray & Co. ($5,000,000) The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling Wachovia Capital Markets, LLC toll free at 1-866-289-1262, Banc of America Securities LLC toll free at 1-800-294-1322 or J.P. Morgan Securities Inc. collect at 1-212-834-4533.