advisories & notices

The Market Surveillance Committee (MSC) is inviting all WESM Members and interested parties to submit comments to the Proposed General Amendments to the WESM Penalty Manual on the Compliance Standards Applicable to Variable Renewable Energy Plants Opting for Scheduled Plant Classification.

The proposed amendment seek to make the existing option for Variable Renewable Energy generating units to register as Scheduled Plants operationally and commercially viable, while maintaining appropriate performance accountability and compliance with applicable WESM requirements.

The WESM document proposed for amendment is the WESM Penalty Manual. The proposed revisions to the Dispatch Protocol Manual (WESM-DP), Registration, Suspension, and De-registration Criteria and Procedures (WESM-RSDCP), and Procedures for the Monitoring of Forecast Accuracy Standards (WESM-FASMD) will have corresponding impacts on the provisions of the WESM Penalty Manual. Hence, corresponding proposals for the revisions to these documents have also been submitted to the Rules Change Committee (RCC).

DOCUMENTS:

Provided below are the relevant materials for your reference:
1.) Overview and Discussion Paper

2.) Original Rules Change Proposal (Urgent Amendment) submitted by ACEN Corporation to RCC

3.) Matrix of Proposed Amendments for Comments (Please write your comments in the proper columns in the matrix)

Kindly submit your comments (in Word format) to the Market Surveillance email at mag_mad@wesm.ph no later than 09 December 2026 or 30 working days from the date of publication (26 October 2026).

Please input in the proper field the e-mail address of your point person(s) who we could further contact regarding activities related to the processing of the proposal.

Thank you.

Market Analysis Division

Market Assessment Group

Philippine Electricity Market Corporation

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

21F & 22F One Filinvest, Ortigas Avenue cor. ADB Avenue and Sapphire Road, Ortigas Center, San Antonio, Pasig City 1605, Philippines