Least Cost Electricity Supreme Court Mandates Fair Valuation Of Utility Assets

The Supreme Court has clarified the standards that the Energy Regulatory Commission (ERC) must follow when fixing electricity rates, emphasizing that the statutory mandate to supply electricity in the "least cost manner" governs rate-setting cases. In National Association of Electricity Consumers for Reforms, Inc. v. Energy Regulatory Commission (G.R. No. 226443, October 8, 2019), the Court partly granted the petition of a consumer group and reminded the ERC of its duty to properly consider audit findings and to value utility assets fairly.

The Case Background

The dispute arose from a rate application filed by Manila Electric Company (MERALCO) in 2001. In an earlier case, MERALCO v. Lualhati (December 6, 2006), the Court directed the ERC to request the Commission on Audit (COA) to conduct a complete audit of MERALCO's books and accounts relative to its provisionally-approved rate increases.

The COA completed its audit and submitted a report in 2009. The report found that MERALCO may have over-recovered revenues when computed using historical costs and a 12% rate of return. The COA also disallowed certain operating expenses, including pension benefits, and certain properties such as the Meralco Theater, Museum, Wellness Center, Shooting Range, and sports facilities, saying these were not necessary or incidental to distribution operations.

The ERC, however, did not adopt the COA's findings. It affirmed its earlier approval of MERALCO's unbundled rates, reasoning that the COA used the wrong methodology and that applying the disallowances would violate the principle against retroactive rate-making. The Court of Appeals affirmed the ERC's orders, prompting NASECORE to elevate the case to the Supreme Court.

The Issues

The petitioner raised four issues: whether the ERC gave proper weight to the COA's findings; whether MERALCO's operating expenses such as pension and employee benefits were recoverable from consumers; whether certain properties should be included in the rate base; and whether excess recoveries should be refunded to consumers.

The Court's Ruling

The Supreme Court partly granted the petition. It held that the ERC failed to properly consider the COA's findings and failed to comply with its statutory mandate to approve rates that provide electricity to consumers in the least cost manner, as expressly required by Section 23 of the Electric Power Industry Reform Act of 2001 (EPIRA).

The Court emphasized that the "least cost manner" standard under EPIRA superseded prior standards inconsistent with it. Under this standard, the ERC must ensure that rates are based on full recovery of prudent and reasonable economic costs, and that consumers are not charged for expenses that are not necessary, proper, or incidental to the operation of a distribution utility.

Valuation of the Rate Base

A significant portion of the decision addressed how utility assets should be valued for rate-setting purposes. The Court explained that the rate base is the value of the property devoted by the utility to public service, and its determination forms the basis for judging whether rates are confiscatory, reasonable, or just.

The Court noted that Philippine jurisprudence has departed from the use of historical or acquisition costs in valuing the rate base. Citing the 1971 case of Republic v. Medina (G.R. No. L-28156), the Court reiterated that the present or market value theory has been consistently adhered to in this jurisdiction. The Court also discussed the United States Supreme Court decision in Federal Power Commission v. Hope Natural Gas Co., which held that it is the result reached, not the method employed, that is controlling in rate-setting.

The Court observed that the ERC's own guidelines require the use of the Optimized Depreciated Replacement Cost (ODRC) approach in valuing the rate base. This approach values assets based on current replacement costs rather than historical costs, consistent with the principle that the rate base should reflect the present value of the property devoted to service.

Operating Expenses and Disallowed Assets

On the issue of operating expenses, the Court agreed with the COA that consumers should not be charged for expenses that are not necessary, proper, or incidental to the operation of a distribution utility. The Court directed the ERC to formulate parameters for determining whether expenses not directly and entirely related to distribution operations should be passed on to consumers.

The Court also noted that the COA did not question pension costs as a necessary expense, but rather disallowed amounts that MERALCO failed to prove were reasonable. The ERC itself had previously stated that MERALCO's submissions lacked detailed breakdowns that would allow a comparative analysis of employee benefits.

Practical Takeaways

• The "least cost manner" standard under EPIRA is the governing principle in electricity rate-setting, and it supersedes prior inconsistent standards.
• The ERC must give proper weight and consideration to COA audit findings, even though a prior COA audit is not mandatory before rate approval.
• Utility assets should be valued based on present or market value, not merely historical cost, consistent with the ODRC approach in the ERC's guidelines.
• Consumers should not bear the cost of expenses that are not necessary, proper, or incidental to the operation of a distribution utility.
• Utilities must provide sufficient documentation to prove that operating expenses, including employee benefits, are reasonable before these can be recovered from consumers.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.