Overview:
The Supreme Court of Palau has ruled that the Palau Public Utilities Corporation’s 2025 water and wastewater rate hike was unlawfully adopted, ordering the utility to revert to the previous tariff schedule. While the Court stopped short of ordering immediate refunds, it signaled that repayments to customers may still be possible as the case moves forward.
Supreme Court says February 2025 increase was never valid; PPUC must follow old tariff while questions over refunds and future rate hikes remain open.
By: L.N. Reklai
KOROR, Palau (May 11, 2026) The Supreme Court of Palau has ruled that the Palau Public Utilities Corporation’s (PPUC) 2025 water and wastewater rate increase was never lawfully adopted, finding that the utility raised rates without a valid approval from its regulator.
In an April 29 order, Associate Justice Peter Huffman granted in part a motion for partial summary judgment filed by the Senate of the Olbiil Era Kelulau, the House of Delegates, and several individual customers. The Court declared that PPUC’s attempt to adopt new water and wastewater tariffs on February 1, 2025, “was legally ineffective to change the tariff schedule” because the corporation did not have a legally valid approval from the Palau Energy and Water Administration (PEWA) at the time.
“As a result of this decision, PPUC has been charging a rate higher than permitted by law,” the Court wrote, holding that the corporation must follow the earlier, unamended tariff schedule that was in place before February 2025.
Retroactive law at the center of dispute
The case turned on 37 PNC § 412(i), which was amended by RPPL 12‑1 and made fully retroactive to January 1, 2025. The amendment requires that any PEWA approval of a rate change after that date must be in writing and must affirm that it is based on audited financial statements meeting statutory standards.
Huffman concluded that all of the requirements in the amended subsection apply retroactively—not just those referencing the Administrative Procedure Act. Because PEWA’s late‑2024 approval of the increase did not contain the required audited financial statement affirmation, that approval became invalid once the retroactive law took effect. Without a valid PEWA approval in place on February 1, 2025, PPUC lacked the legal foundation to adopt higher rates.
The ruling comes after more than two years of back‑and‑forth over water and wastewater charges. PPUC first sought PEWA approval to raise rates in April 2024, and PEWA granted the request later that year. PPUC announced the increase on January 1, 2025, with plans to implement it on February 1. Two days before the increase took effect, the OEK attempted to use a “legislative veto” to block PEWA’s approval, sparking litigation that ultimately led lawmakers to tighten the statute itself.
No immediate refunds, but door left open
Despite ruling that the increase was unlawful, the Court did not order PPUC to issue refunds or impose a permanent injunction.
Lawmakers and individual plaintiffs had asked the Court to permanently bar PPUC from charging the higher rates and to require the corporation to “refund customers the excess amounts paid.” The Court said an injunction was unnecessary to address ongoing billing, noting that existing law already prohibits PPUC from charging above the valid tariff schedule. With the declaratory judgment in place, the Court said it has “no reason to believe PPUC will not comply with the law as declared herein” and saw little need to issue an order simply instructing the utility to follow the law.
On refunds, the Court was cautious but pointedly did not close the door. The order notes that a legal basis for refunds “likely exists” and that “refunds are likely warranted,” but emphasizes that any repayment is an equitable remedy that requires more detailed argument and a careful weighing of factors such as irreparable harm and the public interest.
The Court also drew attention to the timing of the legislative change. When PPUC implemented the higher rates on February 1, 2025, it was acting under what the Court called “more‑than‑colorable authority of law.” The later retroactive statute changed the legal status of that approval after the fact, a factor the Court suggested will matter when shaping any future refund remedy.
What it means for PPUC and ratepayers
For PPUC, the decision has immediate consequences: the corporation cannot rely on the February 2025 tariff and must revert to the prior water and wastewater rates unless and until it obtains a new PEWA approval that fully complies with the retroactive statute.
The ruling also signals that any future rate hike will face stricter scrutiny. PEWA approvals must now be in writing, expressly grounded in audited financials, and processed under the Administrative Procedure Act procedures that the legislature has tied into the rate‑setting framework.
For households and businesses, the ruling confirms that the 2025 bills were based on a tariff that was never legally in force. Customers can expect PPUC to bill under the older, lawful tariff going forward, but whether they will be repaid for past over‑payments remains unresolved.
“The Court has confirmed that PPUC must follow the law when it raises essential service rates,” one legislative source is likely to argue. “This decision is a major step toward transparency, but the fight over refunds and long‑term protections for consumers is not over.”
The Court has scheduled a status conference to determine next steps, including how and when it will address potential refunds and any further relief.