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Republic of the Philippines
DEPARTMENT OF ENERGY

Department Circular No. OCXO19- 12 “0018 pp.

ADOPTING A GENERAL FRAMEWORK GOVERNING THE PROVISION AND
UTILIZATION OF ANCILLARY SERVICES IN THE GRID

WHEREAS, Section 2 of Republic Act No. 9136, otherwise known as the Electric
Power Industry Reform Act of 2001 (EPIRA), declared the Policy of the State among
others to: (i) ensure the quality, reliability, security and affordability of the supply of
electric power; (ii) protect the public interest as it is affected by the rates and services
of electric utilities and other providers of electric power; and (iii) establish a strong and
purely independent regulatory body and system to ensure consumer protection and
enhance the competitive operation of the electricity market.

WHEREAS, Section 37 of the EPIRA further mandates the Department of Energy
(DOE) to supervise the restructuring of the electricity industry by formulating policies
for the planning and implementation of a comprehensive program for the efficient
supply and economical use of energy consistent with the approved national economic
plan and with the policies on environmental protection and conservation and
maintenance of ecological balance, and provide a mechanism for the integration,
rationalization, and coordination of the various energy programs of the Government
and such rules and regulations as may be necessary to implement the objectives of
EPIRA;

WHEREAS, Ancillary Services (AS), as defined in the EPIRA, are services that are
necessary to support the transmission of capacity and energy from resources to loads
while maintaining reliable operation of the transmission system in accordance with
good utility practice and the Grid Code;

WHEREAS, Depariment Circular No. DC2015-10-0015 provided policies and guiding
principles for further enhancements of the Wholesale Electricity Spot Market (WESM)
Design and Operations, including the co-optimization of energy and reserves;

WHEREAS, Department Circular No. DC2015-11-0018 declared the commercial
operation of the central scheduling and dispatch of energy and contracted reserves in
the WESM and providea further amendments to its protocol in preparation for the
eventual operation of the WESM reserve market;

WHEREAS, the Energy Regulatory Commission (ERC), through Resolution No. 22,
Series of 2016, approved the publication of the revised Philippine Grid Code (PGC),
which changed the classification of reserves from Contingency Reserve, Regulating

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Reserve, and Dispatchable Reserve into Primary Reserve, Secondary Reserve, and
Tertiary Reserve, respectively, to set the hierarchy of deployment of reserves for
specific events. However, the same has not been implemented due to technical
issues;

WHEREAS, in 2018, the DOE laid the groundwork for establishing an equitable cost
recovery mechanism for the utilization of AS through the conduct of focus group
discussions and public consultations on the Causer Pays Mechanism (CPM);

WHEREAS, the abovementioned developments to the WESM and the PGC, as well
as the discussions on the CPM, put into light various operational and commercial
issues on AS and brought about the need to update other related guidelines;

WHEREAS, the DOE, in cognizance of the need to harmonize ancillary service-related
issuances and address various issues, formulated a draft circular providing a general
framework governing the provision and utilization of AS in the grid which was
subjected to public consultations on various dates as follows:

| sCiate sd Venue
The Royal Mandaya Hotel, Davao Cit
The Legend Villas, Mandaluyong Cit

NOW, THEREFORE, from the foregoing premises and pursuant to its authority under
the EPIRA and the WESM Rules, the DOE hereby adopts, issues, and promulgates
the following policies governing AS:

Section 1. Guiding Principles. To ensure the reliability, quality, and security of
supply of electric power, any policy or guideline relevant to AS shall adhere to the
following principles:

1.1 Safe and reliable operation of the Grid taking into account the entry of
emerging technologies and the intermittency of Variable Renewable Energy
generating resources;

1.2 Cost-effective planning for the expansion, rehabilitation, repair, and
maintenance of the Transmission systems and facilities;

1.3 Sufficiency of the Ancillary Services to meet the power quality and reliability
requirements of the grid;

1.4 Harmonization of the guidelines, rules, and regulations concerning the
operation of the Grid;

1.5 Proper accountability among concerned entities in the efficient and
transparent operation of the Grid in accordance with the PGC and other
relevant issuances that may be promulgated by the DOE and the ERC;

Department Circular No. DC2019 -12- 0018 “ADOPTING A GENERAL FRAMEWORK GOVERNING
THE PROVISION AND UTILIZATION OF ANCILLARY SERVICES IN THE GRID”

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1.6

1.7

1.8

1.9

2.1

Transparent and cost-effective procurement of AS taking into account the
appropriate location and capacity requirements of each grid in accordance
with the Transmission Development Plan (TDP);

Transparent and equitable allocation of cost for the utilization of AS taking into
account each grid user’s responsibility and contribution in maintaining the
reliability of the grid;

Co-optimization of energy and reserves in the WESM, through central
dispatch and the commercial operation of the WESM Reserve Market as
declared by the DOE; and

Transparent accreditation process for determining capability of resources
capable of providing AS, to include among others, generating units, energy
storage systems, and interruptible loads.

Section 2. Classification and Required Levels of Ancillary Services. Pending the
harmonization of AS-related issuances and review of the relevant provisions of PGC
2016, the classification and required levels of AS shall be in accordance with the
following:

Classification of AS

2.1.1 Regulating Reserve — Readily available and dispatchable
generating capacity thatis allocated exclusively to correct deviations
from the acceptable nominal frequency caused by unpredicted
variations in demand or generation output;

2.1.2 Contingency Reserve — Synchronized generation capacity from
Qualified Generating Units and Qualified Interruptible Loads
allocated to cover the loss or failure of a synchronized generating
unit or a transmission element or the power import from a circuit
interconnection;

2.1.3. Dispatchable Reserve ~ Generating capacity that is not scheduled
for Regular Energy Supply, Regulating Reserve or Contingency
Reserve, or interruptible loads not scheduled for Contingency
Reserve, and that are readily available for dispatch in order to
replenish the Contingency Reserve Service whenever a generating
unit trips or a loss of a single transmission interconnection occurs;

2.1.4 Reactive Power Support AS — Capability to supply Reactive Power
to, or absorb Reactive Power from, the Grid in order to maintain the
bus voltage within five percent (5%) of its nominal voltage;

2.1.5 Black Start AS — Ability of a generating unit, without assistance from
the Grid or other external power supply, to recover from a shutdown

Department Circular No. DC2019 - 2-_ 0018 “ADOPTING A GENERAL FRAMEWORK GOVERNING
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2.2

condition to an operating condition in order to energize the Grid and
assist other generating units to start.

Required Levels of AS

2.2.1 The following reserve levels shall be allocated per trading interval
per grid:

2.2.1.1 Regulating Reserve - 4% of the total demand;

2.2.1.2 Contingency Reserve — Maximum capacity among the
following: the largest synchronized generating unit or a
transmission element or the power import from a circuit
interconnection;

2.2.1.3 Dispatchable Reserve — Maximum capacity among the
following: the second largest synchronized generating unit
or a transmission element or the power import from a
circuit interconnection;

2.2.2 Reactive Power Support - System Operator (SO) to determine day-
ahead through load flow simulation;

2.2.3 Black Start - At least two (2) generating units contracted per power
restoration highway and one (1) should always be available at any
given time.

Section 3. Mandatory AS Capability Testing of All Generating Facilities. The
following shall govern the testing of AS capability of generating facilities:

3.1

3.2

3.3

3.4

Upon the effectivity of this Circular, all generating facilities, except those with
valid and existing AS capability accreditation, shall undergo AS capability
testing and shall be certified according to their respective capabilities. This
provision shall cover all generating units with Pmax equivalent to or above
the following regional thresholds:

a) 1OMW for Luzon Grid;
b) 5MW for Visayas Grid; and
c) 5MW for Mindanao Grid.

For this purpose, the NGCP shall submit an initial inventory of existing plants
and their AS capability to the DOE and ERC not later than 30 days from the
effectivity of this Circular;

The NGCP shall conduct and complete testing of all plants not later than 26
March 2020 and submit a report thereof to the DOE and ERC; and

Until the establishment of an accreditation process for third-party AS testing
entities by the DOE, the NGCP shall ensure testing of all generating facilities

Department Circular No. DC2019 - 2. 00/2 “ADOPTING A GENERAL FRAMEWORK GOVERNING
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and shail submit a report on the results thereof to the DOE and the ERC.

Section 4. Procurement of Ancillary Services Prior to the Commercial Operation
of the WESM Reserve Market. Prior to the commercial operation of the Reserve
Market, the SO shall ensure compliance with its obligation to procure the required
level and specifications of AS in line with the following:

4.4

4.2

4.3

Regulating, Contingency, and Dispatchable Reserves shall be procured
through firm contracts only;

Reactive Power Support AS and Black Start AS shall be procured through
firm contracts only; and

The protocol for the central scheduling of energy and contracted reserves in
the WESM shall still apply, in accordance with the WESM Rules and relevant
Market Manuals.

Section 5. Procurement of Ancillary Services during the Commercial Operation
of the WESM Reserve Market. Upon the commercial operation of the Reserve
Market, the following shall govern the procurement of AS:

5.1

5.2

5.3

5.4

SO shall procure Regulating, Contingency, and Dispatchable Reserves
through firm contracts and the Reserve Market provided that the contracted
levels per reserve region shall be as follows:

5.1.1 Regulating Reserve — Equivalent to 50% of the Regulating Reserve
requirement;

5.1.2 Contingency Reserve - Equivalent to 50% of the dependable
capacity of the largest generating unit;

5.1.3 Dispatchable Reserve — Equivalent to 50% of the dependable
capacity of the second largest generating unit;

Generating units shail submit energy and reserve offers to the WESM with
respect to their maximum available capacities, which shall include contracted
and uncontracted capacities;

All energy and reserve offers shall be co-optimized and subjected to central
scheduling, dispatch, spot pricing and settlement of the Market Operator
(MO) and SO;

Reactive Power Support AS and Black Start AS shall be procured through
firm contracts only.

Section 6. Criteria for the Commercial Operation of WESM Reserve Market. The
co-optimization of the energy and reserves in the WESM shall be implemented not
tater than 26 March 2020, subject to the compliance to the following criteria:

Department Circular No. DC2019 -!£- 0018 “ADOPTING A GENERAL FRAMEWORK GOVERNING
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6.1 Approval by the ERC of the Price Determination Methodology for the
enhanced WESM containing the reserve pricing mechanism;

6.2 Completion of the AS capability testing of all generating facilities and
certification thereof as AS Provider, pursuant to Section 3 of this Circular;

6.3 All systems and procedures including all interfaces between and among the
MO, SO and WESM Participants necessary to implement the Reserve
Market are in place;

6.4 Establishment of mitigating measures including, but not limited to, reserve
offer price cap and floor and secondary price cap;

6.5 Schedule, dispatch, bill and settlement procedures relative to the co-
optimization of energy and reserves are fully operational and incorporated
into the WESM Rules and Market Manuals; and

6.6 Successful conduct of Trial Operations to ensure readiness of AS Providers
to participate in the Reserve Market.

Section 7. Certification of the Readiness of the WESM Reserve Market. The
Philippine Electricity Market Corporation, in consultation with the DOE, shall determine
the readiness of the WESM Reserve Market based on the criteria provided in Section
6 of this Circular, and shall thereafter issue a certification of readiness. The DOE shall
confirm the commercial launch date upon assessment of the certification submitted by
PEMC.

Section 8. Cost Recovery of Ancillary Services. The existing cost-recovery
mechanism for Ancillary Services shall continue to be adopted until a new mechanism
is recommended by the AS — Technical Working Group and adopted by the DOE
and/or the ERC.

Section 9. Creation and Composition of the Ancillary Services ~ Technical
Working Group (AS-TWG). There is hereby created the AS-TWG characterized by
the following:

9.1 The AS-TWG shall be composed of the following:

Co-Chair: Department of Energy
Energy Regulatory Commission

Members: One (1) representative from the following:

Energy Regulatory Commission
Department of Energy

National Electrification Administration
National Grid Corporation of the Philippines

Department Circular No. DC2019 - I2-_O0l2 “ADOPTING A GENERAL FRAMEWORK GOVERNING
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Philippine Electricity Market Corporation
Independent Electricity Market Operator of the
Philippines

Private Electric Power Operators Association
Manila Electric Company

Three (3) representatives from Philippine Independent
Power Producers Association

Secretariat: DOE Electric Power Industry Management Bureau

9.2 The AS-TWG may invite other entities as resource persons to assist them in
the fulfilment of the mandates in this Circular;

9.3 Each organization shall nominate a permanent and alternate representative
to the AS-TWG;

9.4 The AS-TWG shall have the following functions:

9.4.1

9.4.2

9.4.3

9.4.4

9.4.5

9.4.6

9.4.7

9.4.8

Assist the DOE in implementing the provisions of this Circular;

Render technical assistance and advice to the DOE in developing
further policies on AS;

Review the Philippine Grid Code 2016 edition to address issues on
the implementation of new AS categories and Primary Response
requirement;

Review the existing methodology for determining the required leve!
for each AS category and recommend revisions to applicable rules
and relevant manuals to the DOE and ERC as necessary, taking into
account impact of emerging factors such as influx of Variable
Renewable Energy and reduction of WESM trading interval;

Recommend technical specifications and testing procedures for the
accreditation process of AS providers;

Recommend the procedure for the selection of third-party entity to
conduct AS capability testing;

Recommend the guidelines for the Competitive Selection Process for
procurement of AS to be promulgated by the DOE; and

Participate in other activities relevant to AS such as fora, IECs, and
consultations.

Department Circular No. DC2019 - 12. 0018 “ADOPTING A GENERAL FRAMEWORK GOVERNING
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9.5 The AS-TWG shall convene within thirty (30) days from the effectivity of this
Circular and shall provide recommendations in accordance to Section 9.4
within one hundred and eighty (180) days thereon, to be reviewed annually
or as necessary.

Section 10. Responsibilities of the Generation Companies. The Generation
Companies shall:

10.4. Undergo mandatory testing for AS capability during application for Certificate
of Compliance (COC) and conduct re-testing as necessary, provided that
results thereof shall not affect the issuance of the COC;

10.2 Comply with its responsibilities in maintaining grid reliability pursuant to the
PGC, WESM Rules and Manuals and other relevant issuances of the DOE
and the ERC, which may include among others, the following:

10.2.1 Conformance with the schedule and dispatch instructions for energy
and reserves issued by the MO and SO respectively; and

10.2.2 Adherence to the dispatch instructions issued by the SO when the
Grid is operating under Emergency or Extreme State as described in
the PGC.

10.3 Participate in Trial Operations for Reserve Market.

Section 11. Responsibilities of the Market Operator. The MO shall:

11.1 Ensure the completion of the software certification of the New Market
Management System;

41.2 Coordinate with the SO and other WESM Participants for the preparation and
completion of procedures necessary for the efficient operation of the Reserve
Market;

11.3. Ensure the readiness and availability of the necessary interfaces with the SO
and WESM Participants;

11.4 Secure the approval of the ERC of the pricing mechanism for reserves traded
in the Reserve Market which is incorporated in the WESM Price
Determination Methodology;

11.5 Review and/or propose amendments to the WESM Rules and Manuals,
including mitigating measures for pricing of reserves in the Reserve Market

Department Circular No. DC2019 - /2- 0018 “ADOPTING A GENERAL FRAMEWORK GOVERNING
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11.6

such as offer or price cap and floor, relevant to the provision and utilization
of AS; and

Assist in all activities relating to the preparation and implementation of the
Reserve Market, as may be necessary, or as may be directed by the DOE.

Section 12. Responsibilities of the System Operator. The SO shall:

12.1

12.2

12.3

12.4

12.5

12.6

12.7

12.8

Maintain grid reliability through central dispatch of energy and AS, in
accordance with the PGC, PDC, WESM Dispatch Protocol, and other
relevant issuances;

Incorporate in its preparation of the TDP its AS procurement plan;
Submit regular reports to the DOE with respect to the:

12.3.1 Compliance of AS providers with the reserve schedules and dispatch
instructions; and

42.3.2 Compliance of the SO in ensuring that adequate AS are scheduled
for each trading interval per Grid.

Ensure the prudent and least-cost contracting of AS, considering the optimal
mix of contracts, Reserve Market sourcing and solicitation of offers from
various AS providers;

Re-negotiate, as necessary, its existing contracts with AS providers, in
accordance with Sections 4 and 5 of this Circular;

Procure future AS requirements of the grid through contracting with
prospective generators;

Coordinate with the MO and the other WESM Participants for the preparation
and completion of procedures necessary for the efficient operation of the
Reserve Market; and

Assist in atl activities relating to the preparation and implementation of the
Reserve Market, as may be necessary, or as may be directed by the DOE.

Section 13. Regulatory Support. The ERC is hereby directed to issue the relevant
Rules and Regulations necessary to implement the recommendations from the AS-
TWG within sixty (60) calendar days from its submission.

The ERC shall review and harmonize all the guidelines, rules, and regulations
concerning the operations of the Grid in accordance with this Circular.

Department Circular No. DC2019 -{2- 0012 “ADOPTING A GENERAL FRAMEWORK GOVERNING
THE PROVISION AND UTILIZATION OF ANCILLARY SERVICES IN THE GRID”

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Section 14. Separability. If any provision of this Circular is declared invalid or
unconstitutional, the other provisions not affected thereby shall remain valid and
subsisting.

Section 15. Repealing Clause. All issuances inconsistent with the provisions of this
Circular are hereby repealed or amended accordingly.

Section 16. Effectivity. This Circular shall take effect fifteen (15) days following its
publication in two (2) newspapers of general circulation. Copies thereof shall be filed
with the University of the Philippines Law Center — Office of National Administrative
Register (UPLC-ONAR).

Issued on 2019 at the Energy Center, Rizal Drive, Bonifacio Global City,
Taguig City.

J . ¢

FONSO G. CUSI

Secretary

04 DEC 2019

Republic of ine Philipines.
DEPARTMENT OF ENERGY
IN REPLYING PLS. CITE:

WAT UTA HU TL

Department Circular No. DC20189 - fa - oLYh4 “ADOPTING A GENERAL FRAMEWORK GOVERNING
THE PROVISION AND UTILIZATION OF ANCILLARY SERVICES IN THE GRID”
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