20220104Final Approved Tariffs.pdf

Connie Aschenbrenner
Rate Design Senior Manager
[e-mail]

December 23, 2021

ELECTRONICALLY FILED

Jan Noriyuki, Secretary
Idaho Public Utilities Commission
11331 W. Chinden Blvd., Bldg 8,
Suite 201-A (83714)
PO Box 83720
Boise, Idaho 83720-0074

Re: Case No. IPC-E-21-13, Application for Approval of Its Load Curtailment and
Interruption Plan
Compliance Filing – Electric Service Rule J, Continuity, Curtailment and Interruption
of Electric Service

Dear Ms. Noriyuki:

Idaho Power Company hereby submits the enclosed compliance filing in the above-
captioned proceeding pursuant to Idaho Public Utilities Commission Order No. 35263, which
includes its electric service Rule J as listed below, reflecting the modifications to Electric
Service to incorporate the updated Load Curtailment and Interruption Plan with an effective
date of December 20, 2021.

First Revised Sheet No. J-1 Cancelling Original Sheet No. J-1
Original Sheet No. J-2
Original Sheet No. J-3
Original Sheet No. J-4

If you have any questions regarding this filing, please contact me at [phone] or
[e-mail].

Very truly yours,

Connie Aschenbrenner

CA/sg
Enclosure
RECEIVED
2021December 23, PM 4:00
IDAHO PUBLIC
UTILITIES COMMISSION
Idaho Power Company First Revised Sheet No. J-1
Cancels
I.P.U.C. No. 29, Tariff No. 101 Original Sheet No. J-1
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. 35263 Timothy E. Tatum, Vice President, Regulatory Affairs
Effective – December 20, 2021 1221 West Idaho Street, Boise, Idaho

RULE J
CONTINUITY, CURTAILMENT AND
INTERRUPTION OF ELECTRIC
SERVICE

1. Electric Service is inherently subject to occasional interruption, suspension, curtailment,
and fluctuation. The Company will have no liability to its Customers or any other persons for any
interruption, suspension, curtailment, or fluctuation in service or for any loss or damage caused thereby if
such interruption, suspension, curtailment, or fluctuation results from any of the following:

a. Causes beyond the Company's reasonable control including, but not limited to,
fire, flood, drought, winds, acts of the elements, court orders, insurrections or riots, generation
failures, lack of sufficient generating capacity, breakdowns of or damage to facilities of the
Company or of third parties, acts of God or public enemy, strikes or other labor disputes, civil,
military or governmental authority, electrical disturbances originating on or transmitted through
electrical systems with which the Company's system is interconnected, and acts or omissions of
third parties;

b. Repair, maintenance, improvement, renewal or replacement work on the
Company's electrical system, which work in the sole judgment of the Company is necessary or
prudent; to the extent practicable work shall be done at such time as will minimize inconvenience
to the Customer and, whenever practicable, the Customer shall be given reasonable notice of
such work;

c. Actions taken by the Company, which in its sole judgment are necessary or
prudent to protect the performance, integrity, reliability or stability of the Company's electrical
system or any electrical system with which it is inter-connected, which actions may occur
automatically or manually.

2. The provisions of this rule do not affect any person’s rights in tort.

3. Load curtailment and interruption carried out in compliance with an order by governmental
authority shall follow the Company’s plan entitled "Load Curtailment and Interruption Plan", as outlined
below.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Jan. 4, 2022 Dec. 20, 2021
Per O.N. 35263
Jan Noriyuki Secretary
Idaho Power Company

I.P.U.C. No. 29, Tariff No. 101 Original Sheet No. J-2
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. 35263 Timothy E. Tatum, Vice President, Regulatory Affairs
Effective – December 20, 2021 1221 West Idaho Street, Boise, Idaho

RULE J
CONTINUITY, CURTAILMENT AND
INTERRUPTION OF ELECTRIC
SERVICE

LOAD CURTAILMENT AND INTERRUPTION PLAN:

OVERVIEW

1. The Company will comply with all state and federal mandates to curtail the electric
energy used by its Customers to prevent an electrical system collapse. Events that may trigger load
curtailment, either upon notice from state agencies, the Regional Reliability Coordinator, or at the
discretion of the Company, include but are not limited to:

a. Fire, flood, drought, winds, generation failures, lack of sufficient generating capacity,
equipment failures, governmental authority,

b. Actions taken to protect the performance, integrity, reliability or stability of the
Company's electrical system or any electrical system to which it is interconnected, which
actions may occur automatically or manually,

c. Actions taken by the Company that in its sole judgment are necessary or prudent for the
safety of people and/or equipment, or

d. Cyber-attacks or software failure of any part of the Company’s generation, transmission,
and/or distribution system protection and/or control systems.

2. Load curtailment can last for a short amount of time, but also could last for hours or even
days.

AUTOMATIC, REMOTE AND MANUAL ACTIONS

1. Automatic actions occur through the operation of programmed protective equipment
installed on the Company's electrical system, including, without limitation, equipment such as automatic
relays, generator controls, circuit breakers, and switches. This protection equipment is preset to
operate under certain prescribed conditions that, in the sole judgment of the Company, threaten system
performance, integrity, reliability or stability.

2. Where Supervisory Control and Data Acquisition (SCADA) equipment is installed, the
Company will remotely control switches, circuit breakers, relays, voltage regulators or other equipment.
In areas where no SCADA equipment is installed, actions are performed manually by on-site field
personnel.

3. If actions are undertaken, then to the extent permitted by the operating characteristics of
the electrical system, the Company will perform such actions so that interruption, curtailment, or
fluctuation of service to customers will be accomplished sequentially, unless it is necessary in the sole
judgment of the Company, or if required by the Regional Reliability Coordinator to vary said sequence
in order to protect system performance, integrity, reliability or stability.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Jan. 4, 2022 Dec. 20, 2021
Per O.N. 35263
Jan Noriyuki Secretary
Idaho Power Company

I.P.U.C. No. 29, Tariff No. 101 Original Sheet No. J-3

IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. 35263 Timothy E. Tatum, Vice President, Regulatory Affairs
Effective – December 20, 2021 1221 West Idaho Street, Boise, Idaho

RULE J
CONTINUITY, CURTAILMENT AND
INTERRUPTION OF ELECTRIC
SERVICE

CURTAILMENT AND INTERRUPTION

1. Curtailment and/or interruption of electric service can occur at any time for a multitude of
situations. When these situations arise, Idaho Power intends to take appropriate actions to mitigate the
situation for reliability while maintaining service continuity to as many customers as practical.
Depending on the nature of the situation, mitigation actions will range from actions that will not affect
Customers to actions that curtail and/or interrupt service, impacting localized areas and/or the entire
Idaho Power service area.

2. Idaho Power will promptly notify and keep state regulatory and reliability authorities
informed of the curtailment and/or interruption to electric service.

ROTATING OUTAGES AND ONGOING CURTAILMENT

1. Curtailment and/or interruption of Customer load may be necessary to maintain the
reliability of the electric system in certain situations. In the event Idaho Power must curtail or interrupt
Customer load for any reason, the Company’s intent is to curtail the appropriate amount of load
necessary to mitigate the situation. This is accomplished by selecting the amount or percent of load
reduction needed in the Energy Management System (EMS) Load Shedding application. The EMS
Load Shedding application allows the operator to select the applicable localized area or necessary
portions of the Company’s service area to curtail the load. Load curtailment is accomplished manually
in areas that do not have SCADA connected to the EMS.

2. A range of curtailment stages associated with increasing levels of energy deficiencies
has been developed, incorporating North American Electric Reliability Corporation (NERC) standards.
The circumstances necessitating a reduction in the consumption of electricity in the short term will
normally require that immediate emergency action is taken and as such there may be little or no
warning. Sudden equipment outages or loss of generation could potentially lead directly to any
curtailment stage without prior notice or progression of the stages described below. These stages align
with the severity of the energy deficiency and are intended to minimize customer impact.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Jan. 4, 2022 Dec. 20, 2021
Per O.N. 35263
Jan Noriyuki Secretary
Idaho Power Company

I.P.U.C. No. 29, Tariff No. 101 Original Sheet No. J-4

IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. 35263 Timothy E. Tatum, Vice President, Regulatory Affairs
Effective – December 20, 2021 1221 West Idaho Street, Boise, Idaho

RULE J
CONTINUITY, CURTAILMENT AND
INTERRUPTION OF ELECTRIC
SERVICE

ROTATING OUTAGES AND ONGOING CURTAILMENT (Continued)

Stage Nature Type of Curtailment
1 All generation resources are committed.
Firm Customer load, firm transactions,
and reserve commitments are met.
Concerned about sustaining required
Contingency Reserves
 Non-firm wholesale energy sales
 Ask Customers to voluntarily take
conservation measures
 Issue communications notifying
employees of the situation and asking
Company departments to reduce internal
utility energy use.
2 Idaho Power is no longer able to
provide expected energy requirements
 Curtailment actions listed in Stage 1
 Interruptible Customer load and available
demand response programs
 Issue communications requesting
government agencies to implement their
programs to achieve necessary energy
reductions
3 Idaho Power is unable to meet minimum
Contingency Reserves as required by
NERC Standards
 Curtailment actions listed in Stage 1 and
Stage 2
 Implement Emergency Load Shed and
Block Rotation
4 Emergency Load Shed due to
immediate risk posed to electrical
reliability.
 Applicable to all Customers. May be
limited to a specific location if reliability risk
is local to an area.

3. Demand response programs, if deployed as a required action under this plan, will not be
operated under the provisions of Schedules 23, 81, and 82. The provisions of Schedules 23, 81, and
82, including but not limited to operating hours, notification requirements, and incentive payments will
not apply for any time period that the Company utilizes a Load Control Device installed under the
programs to interrupt a participating customer’s load for an electric system emergency.

RETURN TO SERVICE

Idaho Power will return service to its Customers when:
 The Company can meet its load and required operating reserves.
 The reliability of the electric system will not be jeopardized.
 Reliability Coordinator approval has been received, if applicable.

IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Jan. 4, 2022 Dec. 20, 2021
Per O.N. 35263
Jan Noriyuki Secretary