Final Approved Tariffs.pdf

LISA NORDSTROM
Lead Counsel
[e-mail]

May 31, 2012

ELECTRONICALLY FILED

Jean D. Jewell, Secretary
Idaho Public Utilities Commission
472 West Washington Street
P.O. Box 83720
Boise, Idaho 83720-0074

Re: Compliance Filing – Revised Tariff Schedule 55 for Case Nos. IPC-E-12-13,
Revenue Sharing and IPC-E-12-17, Power Cost Adjustment

Dear Ms. Jewell:

Idaho Power Company (“Idaho Power” or “Company”) hereby submits the
enclosed compliance filing in the above-captioned proceedings pursuant to
Commission Order Nos. 32552 and 32558.

Idaho Power transmits for filing its revised Tariff Schedule 55 as listed below
reflecting the change in rates with an effective date of June 1, 2012.

Sixth Revised Sheet No. 55-1 Cancelling Fifth Revised Sheet No. 55-1
First Revised Sheet No. 55-2 Cancelling Original Sheet No. 55-2
Original Sheet No. 55-3

If you have any questions regarding this filing, please contact Tami White at 388-
6938 or [e-mail].

Very truly yours,

Lisa D. Nordstrom

LDN/kkt
Enclosures
cc: Greg Said
Tami White
RA File
Legal File
RECEIVED
2012 May 31 PM 1:33
IDAHO PUBLIC
UTILITIES COMMISSION
Idaho Power Company Sixth Revised Sheet No. 55-1
Cancels
I.P.U.C. No. 29, Tariff No. 101 Fifth Revised Sheet No. 55-1
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order Nos. 32552 and 32558 Gregory W. Said, Vice President, Regulatory Affairs
Effective – June 1, 2012 1221 West Idaho Street, Boise, Idaho

SCHEDULE 55
POWER COST ADJUSTMENT

APPLICABILITY

This schedule is applicable to the electric energy delivered to all Idaho retail Customers served
under the Company’s schedules and Special Contracts. These loads are referred to as "firm" load for
purposes of this schedule.

BASE POWER COST

The Base Power Cost of the Company's rates is computed by dividing the sum of the
Company's power cost components by firm kWh sales. The power cost components are segmented
into three categories: Category 1, Category 2 and Category 3. Category 1 power costs include the sum
of fuel expense and purchased power expense (excluding purchases from cogeneration and small
power producers), less the sum of off-system surplus sales revenue and revenue from market-based
special contract pricing. Category 2 power costs include purchased power expense from cogeneration
and small power producers. Category 3 power costs include demand response incentive payments.
The Base Power Cost is 1.5102 cents per kWh, which is comprised of Category 1 power costs of
0.9699 cents per kWh, Category 2 power costs of 0.4549 cents per kWh and Category 3 power costs of
0.0854 cents per kWh.

PROJECTED POWER COST

The Projected Power Cost is the Company estimate, expressed in cents per kWh, of the
Category 1, Category 2 and Category 3 power cost components for the forecasted time period
beginning April 1 each year and ending the following March 31. The Projected Power Cost is 2.0201
cents per kWh, which is comprised of Category 1 power costs of 0.9704 cents per kWh, Category 2
power costs of 0.9379 cents per kWh and Category 3 power costs of 0.1118 cents per kWh.

TRUE-UP AND TRUE-UP OF THE TRUE-UP

The True-up is based upon the difference between the previous Projected Power Cost and the
power costs actually incurred. The True-up of the True-up is the difference between the previous
year’s approved True-Up revenues and actual revenues collected. The total True-up is (0.1732) cents
per kWh.

EARNINGS SHARING

Order Nos. 30978 and 32424 directed the Company to share a portion of its earnings above a
certain threshold with customers through the annual Power Cost Adjustment. The following rate
schedules will receive a rate reduction benefit associated with the Company’s 2011 earnings in the
form of a cents per kWh rate, which was quantified in Case No. IPC-E-12-13. The Company’s Special
Contract customers will receive rate reduction benefits associated with the Company’s 2011 earnings in
the form of a monthly credit for each month of the rate effective period.

Schedule Description ¢ per kWh
1,4,5 Residential Service (0.2574)
3 Master Metered Mobile Home Park (0.2440)
7 Small General Service (0.3273)
9S Large General Service – Secondary (0.1875)
9P Large General Service – Primary (0.1568)

IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
May 31, 2012 June 1, 2012
Per O.N. 32552 & 32558
Jean D. Jewell Secretary
Idaho Power Company First Revised Sheet No. 55-2
Cancels
I.P.U.C. No. 29, Tariff No. 101 Original Sheet No. 55-2
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order Nos. 32552 and 32558 Gregory W. Said, Vice President, Regulatory Affairs
Effective – June 1, 2012 1221 West Idaho Street, Boise, Idaho

SCHEDULE 55
POWER COST ADJUSTMENT
(Continued)

EARNINGS SHARING (Continued)

9T Large General Service – Transmission (0.1568)
15 Dusk to Dawn Lighting (0.5843)
19S Large Power Service – Secondary (0.1557)
19P Large Power Service – Primary (0.1381)
19T Large Power Service – Transmission (0.1302)
24 Agricultural Irrigation Service (0.2072)
40 Unmetered General Service (0.2250)
41 Street Lighting (0.4128)
42 Traffic Control Lighting (0.1561)

Monthly Credit
26 Micron ($46,803.50)
29 Simplot ($18,362.25)
30 DOE ($22,905.75)
32 Hoku ($ 7,685.08)

POWER COST ADJUSTMENT

The Power Cost Adjustment is the sum of: 1) 95 percent of the difference between the Projected
Power Costs in Category 1 and the Base Power Costs in Category 1; 2) 100 percent of the difference
between the Projected Power Costs in Category 2 and the Base Power Costs in Category 2; 3) 100
percent of the difference between the Projected Power Costs in Category 3 and the Base Power Costs
in Category 3; 4) the True-ups; and 5) Earnings Sharing.

The monthly Power Cost Adjustment rates applied to the Energy rate of all metered schedules
and Special Contracts are shown below. The rates below do not include the monthly Earnings Sharing
payments for each of the Special Contract customers (Schedules 26, 29, 30 and 32). The monthly
Power Cost Adjustment applied to the per unit charges of the nonmetered schedules is the monthly
estimated usage times the cents per kWh rates shown below.

Schedule Description ¢ per kWh
1,4,5 Residential Service 0.0793
3 Mastered Metered Mobile Home Park 0.0927
7 Small General Service 0.0094
9S Large General Service – Secondary 0.1492
9P Large General Service – Primary 0.1799
9T Large General Service – Transmission 0.1799
15 Dusk to Dawn Lighting (0.2476)
19S Large Power Service – Secondary 0.1810
19P Large Power Service – Primary 0.1986
19T Large Power Service – Transmission 0.2065
24 Agricultural Irrigation Service 0.1295
40 Unmetered General Service 0.1117
41 Street Lighting (0.0761)
42 Traffic Control Lighting 0.1806
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
May 31, 2012 June 1, 2012
Per O.N. 32552 & 32558
Jean D. Jewell Secretary
Idaho Power Company

I.P.U.C. No. 29, Tariff No. 101 Original Sheet No. 55-3
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order Nos. 32552 and 32558 Gregory W. Said, Vice President, Regulatory Affairs
Effective – June 1, 2012 1221 West Idaho Street, Boise, Idaho

SCHEDULE 55
POWER COST ADJUSTMENT
(Continued)

POWER COST ADJUSTMENT (Continued)

26 Micron 0.3367
29 Simplot 0.3367
30 DOE 0.3367
32 Hoku 0.3367

EXPIRATION

The Power Cost Adjustment included on this schedule will expire May 31, 2013.

IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
May 31, 2012 June 1, 2012
Per O.N. 32552 & 32558
Jean D. Jewell Secretary