advisories & notices

The Rules Change Committee (RCC) is inviting all WESM Members and interested parties to submit comments to Proposed General Amendments to the WESM Manual on Metering Standards and Procedures regarding Metering Installation Requirements (ORCP- WM-26-04).

The Proponent, NGCP, seeks to improve the clarity, consistency, and practical implementation of the WESM Metering Standards and Procedures without altering the fundamental objectives of metering accuracy, security, and integrity. The amendments:

1. Incorporate the Philippine Electrical Code (PEC) and other applicable codes and standards under the general requirements for metering installations.
2. Adopt technology-neutral terminology to accommodate evolving technologies and compliant installation methods.
3. Introduce controlled flexibility for installations where compliance with certain physical requirements is impracticable due to installation constraints, subject to determination by the Metering Service Provider (MSP).
4. Strengthen metering security through documented verification requirements and recognition of equivalent tamper-evident measures.
5. Remove redundant requirements relating to secondary terminal box sealing.
6. Revise meter enclosure access provisions to allow controlled access by authorized personnel under MSP supervision while maintaining security controls.

 The WESM document/s for amendment are the following:

1. WESM Manual on Metering Standards and Procedures Issue 16.0

 DOCUMENTS:

 Provided below are relevant materials for your reference and perusal: 

• Overview, Discussion Paper, and Matrix of Proposed Amendments
• Presentation of the Proposed Amendments
• RCC Form3_Matrix of Proposed Amendments for Comments - Annexes of this document (Please write your comments in the proper columns in the matrix.)

 Kindly submit your comments (in Word format) through the File a Submission webpage no later than 05 October 2026 or 30 working days from the date of publication (20 August 2026). We recommend using Firefox browser for submitting your comments.

Please ensure that your submission is signed securely by the designated approving authority and/or representative of your company, and input in the proper field the e-mail address of your point person(s) whom we could contact regarding activities related to the processing of the proposal. All comments received shall be published in the PEMC website.

Thank you!

Rules Review Division

Market Asessment Department

Philippine Electricity Market Corporation

+632 8631 8734 | mag_rrd@wesm.ph | www.wesm.ph

18F Robinsons Equitable Tower, ADB Avenue, Ortigas Center, Pasig City 1600, Philippines