G.R. No. 163935 August 16, 2006
NATIONAL ASSOCIATION OF ELECTRICITY CONSUMERS FOR REFORMS (NASECORE), ET AL., Petitioners, vs. ENERGY REGULATORY COMMISSION (ERC) AND MANILA ELECTRIC COMPANY (MERALCO), Respondents.

FACTS

The Energy Regulatory Commission (ERC) and MERALCO sought reconsideration of the Court’s February 2, 2006 Decision, which voided an ERC Order approving an increase in MERALCO’s generation charge. The Court had ruled that the ERC committed grave abuse of discretion. First, MERALCO’s amended application for the increase was not published in a newspaper of general circulation, violating Section 4(e), Rule 3 of the Implementing Rules of the Electric Power Industry Reform Act (EPIRA). Second, the Generation Rate Adjustment Mechanism (GRAM) Implementing Rules, which the ERC and MERALCO cited as legal basis for dispensing with publication, were themselves not published in the Official Gazette or a newspaper of general circulation, nor filed with the Office of the National Administrative Register.
The ERC and MERALCO, in their motions, argued that Section 4(e) of the EPIRA IRR was intended only for general rate proceedings, not for applications under automatic adjustment mechanisms like GRAM. They contended that applying the publication requirement to all rate adjustments would paralyze the ERC and undermine the financial viability of utilities. They also pleaded good faith reliance on the GRAM rules and requested prospective application of any nullification.

ISSUE

Whether the Court correctly affirmed that the publication requirement under the EPIRA IRR applies to MERALCO’s amended application for a generation charge increase under the GRAM mechanism, and that the unpublished GRAM Implementing Rules are ineffective.

RULING

The Court DENIED the motions for reconsideration and AFFIRMED its Decision. The legal logic is clear and twofold. First, on the applicability of the publication requirement, Section 4(e), Rule 3 of the EPIRA IRR explicitly covers “any application or petition for rate adjustment or any relief affecting the consumers.” The provision makes no distinction between general rate cases and those filed under adjustment mechanisms. Since MERALCO’s amended application sought a change in the retail rate paid by end-users by increasing the generation charge, it falls squarely within this broad, unambiguous language. The lack of publication was a fatal procedural defect.
Second, the defense of reliance on the GRAM Implementing Rules fails because those rules themselves never validly took effect. Following the doctrine in Tañada v. Tuvera, administrative rules must be published in the Official Gazette or a newspaper of general circulation to be effective. The GRAM rules were not published, rendering them void from the beginning. An invalid rule cannot legally excuse non-compliance with a valid, published regulation like the EPIRA IRR. The Court rejected arguments that this ruling would cause operational paralysis, emphasizing that adherence to due process through publication is a non-negotiable precondition for any rate adjustment affecting the public. The requirement safeguards consumer interests by ensuring transparency and opportunity to be heard.