The Philippine Grid Code (PGC) establishes and documents the basic rules, requirements, procedures and standards that govern the operation, maintenance and development of the highvoltage backbone transmission system of the Philippines. The Philippine Grid Code identifies and recognizes the responsibilities and obligations of three (3) key independent functional groups, namely (a) Transmission Network Provider, (b) System Operator and (c) Market Operator. These functional groups and all Users of the Grid must comply with all the provisions of the Philippine Grid Code. The Philippine Grid Code is intended to be used along with the Market Rules of the Wholesale Electricity Spot Market to ensure the safe, reliable and efficient operation of the Grid.
Republic Act No. 9136, also known as the “Electric Power Industry Reform Act of 2001,” mandated the creation of the Energy Regulatory Commission (ERC). Section 43(b) of the Act mandates the ERC to promulgate and enforce a National Grid Code and a Distribution Code which shall include, but not limited to: (a) Performance Standards for TRANSCO O & M Concessionaire, Distribution Utilities and suppliers, and (b) Financial Capability Standards for the Generating Companies, the TRANSCO’s Concessionaire, Distribution Utilities and Suppliers. The Act also mandates the ERC to enforce compliance to the Philippine Grid Code, the Philippine Distribution Code and the Market Rules and to impose fines and penalties for violations of their provisions.
The Philippine Grid Code was prepared using a functional rather than an organizational format so that it will remain robust and require minimum changes as the Philippine electric power industry is transformed to its new organizational structure.
The safe, reliable and efficient operation of the Grid requires the cooperation of all industry participants. It is important that all Grid Users follow the instructions and orders of the System Operator to ensure the reliable operation of the Grid. The System Operator will work closely with the Market Operator to Dispatch day-ahead pool schedules and provide the necessary support in satisfying the technical and operational requirements of real time control of the Grid.
The policies and decisions of the Transmission Network Provider, System Operator and Market Operator on matters involving the operation, maintenance and development of the Grid will affect all industry participants and End-Users. It is important, therefore, that all affected parties have a voice in making decisions and policies involving the operation, maintenance and development of the Grid. The Philippine Grid Code provides this mechanism through the Grid Management Committee (GMC) that will relieve the Energy Regulatory Commission of the tedious task of monitoring day-to-day operations of the Grid.
The Philippine Grid Code is organized into ten (10) Chapters. These are:
| CHAPTERS | TITLE |
|---|---|
| CHAPTER 1 | General Conditions |
| CHAPTER 2 | Grid Management |
| CHAPTER 3 | Performance Standards for Transmission |
| CHAPTER 4 | Grid Connection Requirements |
| CHAPTER 5 | Grid Planning |
| CHAPTER 6 | Grid Operations |
| CHAPTER 7 | Grid Protection |
| CHAPTER 8 | Scheduling and Dispatch |
| CHAPTER 9 | Grid Revenue Metering |
| CHAPTER 10 | Transitory Provision |
Chapter 1 – General Conditions (GC) which cites the legal and regulatory framework for the promulgation and enforcement of the Philippine Grid Code. It also specifies the general provisions that apply to all the chapters of the PGC and contains a section on the definition of terms and abbreviations used in the PGC.
Chapter 2 – Grid Management (GM) which provides the requirements and guidelines on the required GMC governance.
Chapter 3 – Performance Standards for Transmission (PST) which provides standards, requirements, guidelines and monitoring on the requirements to promote Reliability of the Grid. (Related to Performance Incentive Scheme (PIS) of the Transmission Network Provider)
Chapter 4 – Grid Connection Requirements (GCR) which provides standards, requirements, measurements and guidelines required to secure a Connection Agreement. (Related to Connection Agreement to NGCP)
Chapter 5 – Grid Planning (GP) which provides standards, requirements, measurements, guidelines and monitoring on the required system planning studies such as load flows, short circuit, Stability, etc. (Related to OATS/SIS)
Chapter 6 – Grid Operations (GO) which provides standards, requirements, measurements, guidelines and monitoring on the requirements to maintain system Reliability, Adequacy and Security of the grid during normal and contingent conditions.(Related to ASPP)
Chapter 7 – Grid Protection (GPr) which provides standards, requirements, guidelines and monitoring on the requirements to maintain system Stability and Security of the Grid during a contingent Event. (Related to OATS/SIS)
Chapter 8 – Scheduling and Dispatch (SD) which provides standards, requirements, measurements and guidelines to define the linkage between the Adequacy (supply) and Reliability (delivery) cognizant to the requirements of the Market, and System Operator.
Chapter 9 – Grid Revenue Metering (GRM) which provides standards, requirements and guidelines to ensure accuracy of the measurements/recording of Energy delivered/absorbed by the Grid.
Chapter 10 – Transitory Provision (TP) which specifies the rules pertaining to the compliance of the Users of the Grid, Market Operator, System Operator and Transmission Network Provider with the provisions of the PGC during the transition period from the existing industry structure to the new industry structure.
Click to download Philippine Grid Code 2016 Edition
Click to download Frequently Ask Question on PGC 2016
References:
- Grid Management Committee: gmc.org.ph
- Energy Regulatory Commission: erc.gov.ph
- Department of Energy : doe.gov.ph
