Nueva Ecija I Electric Cooperative Incorporated (NEECO I) vs. Energy Regulatory Commission

A petition for review under Rule 43 may be given due course despite failure to attach all pleadings and records where the attached documents sufficiently substantiate its allegations; and the grossed-up factor mechanism, being an unpublished administrative rule that amends the IRR of R.A. No. 7832 and is applied retroactively, cannot serve as a basis for computing over-recoveries.

NEECO I is a rural electric cooperative organized and existing under P.D. No. 269 and a member of the Central Luzon Electric Cooperatives Association (CLECA). R.A. No. 7832, the Anti-Electricity and Electric Transmission Lines/Materials Pilferage Act of 1994, imposed caps on the recoverable rate of system loss that rural electric cooperatives may charge consumers, and its IRR required cooperatives to file applications for approval of amended PPA Clauses incorporating those caps. The Energy Regulatory Board (ERB), later replaced by the Energy Regulatory Commission (ERC) under R.A. No. 9136 or the EPIRA Law, administered the PPA confirmation process. Other rural electric cooperatives’ challenges to the same ERC directives were resolved in Association of Southern Tagalog Electric Cooperatives, Inc. vs. ERC (ASTEC), whose antecedents are the same as those in this controversy.

NEECO I is a rural electric cooperative organized under P.D. No. 269 and a member of CLECA. R.A. No. 7832, enacted on December 8, 1994, imposed caps on the recoverable rate of system loss that rural electric cooperatives may charge their consumers. Section 10 set caps for rural electric cooperatives at 22% at the end of the first year, 20% at the end of the second, 18% at the end of the third, 16% at the end of the fourth, and 14% at the end of the fifth year following the law’s effectivity, with the ERB authorized to determine whether the caps should be reduced further, but not lower than 9%. The IRR of R.A. No. 7832 required every rural electric cooperative to file with the ERB, on or before September 30, 1995, an application for approval of an amended PPA Clause incorporating the cap on recoverable system loss. Section 5, Rule IX of the IRR provided a guiding formula for the amended PPA Clause.

In compliance, various associations of rural electric cooperatives filed applications on behalf of their members. NEECO I’s application was filed by CLECA on February 8, 1996 and docketed as ERB Case No. 96-37; it was later consolidated with identical petitions filed by other associations. On February 19, 1997, the ERB issued an Order granting electric cooperatives provisional authority to use and implement a PPA formula pursuant to R.A. No. 7832 and its IRR. The Order directed all electric cooperatives to submit their monthly implementation of the PPA formula from February 1996 to January 1997 for review, verification, and confirmation, and thereafter to submit monthly implementations on or before the 20th day of the current month for the previous month.

NEECO I implemented the approved formula in its electric power billings for the period July 1999 to April 2005. For February 1996, it did not impose PPA charges, while for March 1996 to June 1999, it used a “multiplier” scheme. On June 8, 2001, R.A. No. 9136, the EPIRA Law, was enacted, creating the ERC which replaced and succeeded the ERB. Pending cases before the ERB were transferred to the ERC, and NEECO I’s case was re-docketed as ERC Case No. 2001-340.

The ERC issued an Order dated June 17, 2003 clarifying that in the confirmation of past PPAs, power cost would be based on “gross,” while in future PPAs, it would be based on “net.” On January 14, 2005, the ERC refined its policy: PPAs prior to June 17, 2003 would be based on the approved PPA formula; PPAs after June 17, 2003 would be based on power cost “net” of discount; and if the approved PPA formula was silent on discounts, computation would be based on “gross,” subject to proof that discounts were extended to end-users. On July 27, 2006, the ERC further clarified the treatment of Prompt Payment Discount granted by power suppliers to distribution utilities.

In the same July 27, 2006 Order, the ERC evaluated NEECO I’s records and found over-recoveries totaling ₱60,797,451.00. The over-recoveries arose from: (a) the 1.4 multiplier scheme from March 1996 to June 1999, resulting in ₱9,393,186.00; (b) failure to reduce power cost by the Prompt Payment Discount from NPC for July 2003 to April 2005, resulting in ₱18,578,476.00; (c) use of April 2002 and May 2002 NPC billings for May 2002 and June 2002, resulting in ₱4,192,972.00 and ₱4,047,598.00; (d) failure to deduct pilferage recoveries of ₱2,255,171.00; (e) failure to reduce May 2001 PPA power cost by the Fuel and Power Cost Adjustment, resulting in ₱1,534,470.00; and (f) the new grossed-up factor mechanism adopted by the ERC. NEECO I was directed to refund ₱0.1199/kWh starting the next billing cycle until the full amount was refunded.

NEECO I filed a Manifestation and Motion for Reconsideration with Deferment of Implementation, arguing that its use of the multiplier scheme was pursuant to NEA policy; that it received no warning despite monthly reports; that there was confusion over the gross/net discount formula because it gave discounts to customers; that pilferage recoveries were not deducted because they were mere kWh consumptions already recovered and included in monthly sales; that it was not given the opportunity to be apprised of the re-confirmation method; that the running average was the usual practice under NEA; that retroactive application deprived it of due process; that R.A. No. 7832 was unconstitutional as an ex post facto law; and that the ERC policies were unenforceable for lack of publication and filing with the U.P. Law Center. The ERC denied the motion on May 9, 2007.

NEECO I then filed a petition for review before the CA, but the CA denied due course on July 11, 2007 for failure to append the ERB petition, responsive pleading, and other pertinent pleadings; failure to contain a concise statement of facts under Section 6, Rule 43; failure to implead CLECA as respondent; and failure to furnish CLECA a copy of the petition under Section 5, Rule 43. The CA denied reconsideration on November 9, 2007. NEECO I elevated the matter to the Supreme Court, seeking reversal of the CA issuances and remand for resolution on the merits, or in the alternative, nullification of the ERC Orders dated July 27, 2006 and May 9, 2007.

• Substantial Compliance with Rule 43: NEECO I argued that the CA erred in dismissing its appeal outright because it substantially complied with Rule 43 by attaching the ERC Orders dated February 19, 1997, July 27, 2006, May 9, 2007, April 25, 1997, June 17, 2003, and January 14, 2005; it could not locate the ERB pleadings because of changes in management, and the ERC records could no longer be located.
• Impleading CLECA: NEECO I maintained that CLECA need not be impleaded as respondent or furnished a copy of the petition because the challenged ERC Orders dated July 27, 2006 and May 9, 2007 concerned only NEECO I, not all Central Luzon rural electric cooperatives represented by CLECA.
• Multiplier Scheme: NEECO I argued that its use of the 1.4 multiplier scheme was pursuant to NEA policy and that it received no warning or comment from the ERC despite monthly reports.
• Gross/Net Discount and Pilferage Recoveries: NEECO I argued that there was confusion over the gross/net discount formula because it was actually giving discounts to its customers, and that pilferage recoveries were not deducted because they were mere kWh consumptions already recovered and included in monthly sales.
• Due Process: NEECO I argued that it was not given the opportunity to be apprised of the method and procedure on the re-confirmation process made by ERC’s technical staff, and that the retroactive application of the PPA formula deprived it of due process.
• Unconstitutionality of R.A. No. 7832: NEECO I argued that R.A. No. 7832 is unconstitutional for being an ex post facto law.
• Non-Publication: NEECO I argued that the ERC policies are unenforceable because they were not published in a newspaper of general circulation and were not furnished to the U.P. Law Center.
• EPIRA Repeal, Non-Impairment, and Unlawful Taking: NEECO I anchored its argument on Section 43(f) of the EPIRA Law, maintained that the cap on recoverable system loss was arbitrary and violative of the non-impairment clause, and asserted that the PPA computation based on the cost of power net of discount was illegal and unconstitutional for being an unlawful taking of property.
• Nullity of ERC Orders: NEECO I sought the declaration of nullity of the ERC Orders dated July 27, 2006 and May 9, 2007.

• Substantial Compliance with Rule 43: Whether the CA erred in dismissing NEECO I’s petition for review for failure to comply with Sections 5 and 6 of Rule 43 despite the attached ERC issuances.
• Impleading CLECA: Whether CLECA had to be impleaded as a respondent or furnished a copy of the petition for review.
• Multiplier Scheme: Whether NEECO I could continue using the 1.4 multiplier scheme under NEA Memorandum No. 1-A despite the caps in Section 10 of R.A. No. 7832.
• EPIRA Repeal: Whether Section 10 of R.A. No. 7832 was superseded or repealed by Section 43(f) of the EPIRA Law.
• Non-Impairment and Unlawful Taking: Whether the cap on recoverable system loss and the net-of-discount PPA computation were arbitrary, violated the non-impairment clause, or constituted unlawful taking.
• Due Process: Whether NEECO I was deprived of due process in the ERC proceedings.
• Publication: Whether ERC Orders dated June 17, 2003 and January 14, 2005 were void for lack of publication in the Official Gazette or a newspaper of general circulation and filing with the U.P. Law Center.
• Retroactivity: Whether the PPA formula and policy guidelines were invalid for retroactive application.
• Grossed-Up Factor Mechanism: Whether the over-recoveries must be recomputed because the grossed-up factor mechanism in the July 27, 2006 ERC Order was invalid.

• Substantial Compliance with Rule 43: Yes. The CA erred in dismissing the appeal outright; the attached ERC issuances sufficiently substantiated the petition, and NEECO I substantially complied with Rule 43.
• Impleading CLECA: No. CLECA was not a necessary respondent; the challenged orders concerned NEECO I, and CLECA was merely its representative in the ERC proceedings.
• Multiplier Scheme: No. NEA Memorandum No. 1-A cannot prevail over Section 10 of R.A. No. 7832, which is self-executory and imposed caps effective January 17, 1995.
• EPIRA Repeal: No. Section 10 caps subsist until the ERC replaces them under Section 43(f) of the EPIRA Law.
• Non-Impairment and Unlawful Taking: No. Rate regulation is police power; the net-of-discount computation preserves the PPA as a cost-recovery mechanism and does not take property.
• Due Process: No. Administrative due process only requires an opportunity to explain one’s side or seek reconsideration; NEECO I was given such opportunity.
• Publication: No. The June 17, 2003 and January 14, 2005 Orders are interpretative regulations and need not be published or filed.
• Retroactivity: No. The policy guidelines did not impair vested rights because the PPA formula was only provisionally approved and subject to confirmation.
• Grossed-Up Factor Mechanism: Yes. The grossed-up factor mechanism is an unpublished administrative rule that amended the IRR and was applied retroactively; portions of over-recoveries based on it are invalid and must be recomputed.

• Substantial Compliance with Rule 43: The right to appeal is statutory, and compliance with Rule 43 is generally required; Section 6 requires that a petition for review be accompanied by a duplicate original or certified true copy of the award, judgment, final order, or resolution appealed from, together with certified true copies of material portions of the record and other supporting papers, and Section 7 makes failure to comply a sufficient ground for dismissal. However, the right to appeal is essential to the judicial system, and courts must proceed with caution so as not to deprive a party of the right to appeal. Before an appeal may be denied outright for lack of copies of essential pleadings and portions of the case record, the CA must first assess the sufficiency of the documents actually accompanying the petition to determine whether they sufficiently substantiate the allegations. If they do, the petitioner is deemed to have substantially complied. The Court adopted the three guideposts from Galvez vs. Court of Appeals: first, only relevant and pertinent documents must accompany the petition, the test being whether the document supports the material allegations and makes out a prima facie case of grave abuse of discretion; second, a relevant document need not be appended if its contents are found in another attached document; and third, a petition lacking an essential pleading may still be given due course or reinstated upon showing later submission or that the higher interest of justice requires a decision on the merits. Here, the ERC issuances attached to NEECO I’s petition were ample enough: the February 19, 1997 Order confirmed the background facts; the July 27, 2006 Order summarized the ERC policy on PPA confirmation and the factual findings on over-recoveries; and the other attached issuances recapitulated the events preceding the controversy. These attachments adequately provided the CA with the necessary information to pass upon the assigned errors without the initiatory pleadings from the defunct ERB. The CA thus committed grave error in denying the appeal and depriving NEECO I of the right to be heard.
• Impleading CLECA: The CA erred in concluding that CLECA had to be impleaded as a respondent. The rulings for which review was sought were issued by the ERC, not CLECA, which was the representative organization of NEECO I in the ERC proceedings. Including CLECA as a petitioner or furnishing it a copy of the CA petition was unnecessary because the ERC Orders dated July 27, 2006 and May 9, 2007 concerned only NEECO I and not all rural electric cooperatives in Central Luzon represented by CLECA.
• Multiplier Scheme: In SURNECO, the Court held that NEA Memorandum No. 1-A, which authorized rural electric cooperatives to use the multiplier scheme as a method to recover system loss, was a mere administrative issuance that cannot prevail against and is deemed repealed by the legislative enactment in Section 10 of R.A. No. 7832 imposing caps on the recoverable rate of system loss. Section 10 was self-executory and did not require the issuance of enabling rules or any action by the ERC. The caps should have been applied as of January 17, 1995 when R.A. No. 7832 took effect. NEECO I could not insist on the continued validity of the multiplier scheme it had adopted pursuant to NEA Memorandum No. 1-A.
• EPIRA Repeal: NEECO I anchored its argument on Section 43(f) of the EPIRA Law, which states that the cap on the recoverable rate of system losses prescribed in Section 10 of R.A. No. 7832 is amended and shall be replaced by caps determined by the ERC based on load density, sales mix, cost of service, delivery voltage, and other technical considerations. In SURNECO, the Court interpreted this to mean that the EPIRA Law allowed the caps imposed by Section 10 of R.A. No. 7832 to remain until replaced by the ERC pursuant to its delegated authority to prescribe new system loss caps. The imposable system loss caps are within the discretion of the ERC, and until and unless it decrees new caps, those imposed by Section 10 of R.A. No. 7832 shall subsist. The ERC may also adopt and maintain the prevailing caps if it finds them consistent with its mandate to ensure reasonable rates of electricity.
• Non-Impairment and Unlawful Taking: The regulation of rates imposed by public utilities such as electricity distributors is an exercise of the State’s police power. As reiterated in SURNECO, when private property is used for a public purpose and is affected with public interest, it ceases to be juris privati only and becomes subject to regulation to promote the common good. The ERC, as the State agency mandated to regulate and approve rates imposed by electric cooperatives, merely exercised its task of protecting the public interest when it directed NEECO I to refund its over-recoveries. The ERC was ensuring that the PPA mechanism remains a purely cost-recovery mechanism and not a revenue-generating scheme for electric cooperatives, which are organized under P.D. No. 269 to engage in electricity distribution on a non-profit basis. No unlawful taking results from the “net of discount” principle because it merely preserves the true nature of the PPA formula as an adjustment mechanism strictly for recovering costs actually incurred in purchasing electricity. If the PPA is computed without factoring discounts given by power suppliers, electric cooperatives will impermissibly retain or even earn from the PPA. In ASTEC, the Court held that the nature of the PPA formula precludes an interpretation that includes discounts in the computation of the cost of purchased power. Rural electric cooperatives cannot incorporate costs they did not incur; consumers must not shoulder the gross cost of purchased power, otherwise cooperatives will unjustly profit from discounts extended by power suppliers. The police power of the State to regulate rates is also the reason the caps in R.A. No. 7832 cannot be deemed to impair the loan agreement between NEA and the Asian Development Bank imposing a 15% system loss cap and providing a power cost adjustment clause. All private contracts must yield to superior and legitimate measures taken by the State to promote public welfare.
• Due Process: In SURNECO, the Court resolved that the ERC observed administrative due process when it enjoined electric cooperatives to refund their over-recoveries. The cooperatives were duly informed of the need for monthly documentary submissions and were allowed to submit them; hearings and exit conferences with representatives were conducted; these conferences entailed discussions on preliminary figures and further verification to determine and correct inaccuracies; and the cooperatives were allowed to file motions for reconsideration of the ERC orders directing refunds. Administrative due process simply requires an opportunity to explain one’s side or to seek reconsideration of the action or ruling complained of; it means being given the opportunity to be heard before judgment, and a formal trial-type hearing is not even essential. NEECO I underwent the same administrative procedure and was accorded similar opportunities. It attended the conferences conducted by the ERC on January 8, 2004 and November 8, 2005, was allowed to file documentary submissions, and was allowed to seek reconsideration of the ERC Order dated July 27, 2006.
• Publication: In ASTEC, the Court held that the ERC Orders dated June 17, 2003 and January 14, 2005 containing policy guidelines on the treatment of discounts extended by power suppliers did not modify, amend, or supplant R.A. No. 7832 and its IRR; they merely interpreted the computation of the cost of purchased power. As interpretative regulations, their publication in the Official Gazette or filing with the Office of the National Administrative Register at the U.P. Law Center was not necessary. Procedural due process demands that administrative rules and regulations be published to be effective, but by way of exception, interpretative regulations need not comply with the publication requirement in Section 18, Chapter 5, Book I, and the filing requirement in Sections 3 and 4, Chapter 2, Book VII, of the Administrative Code. Interpretative regulations add nothing to the law and do not affect substantial rights of any person; hence, they need not be subjected to the procedural due process of publication or filing before electric cooperatives may be ordered to abide by them.
• Retroactivity: This issue was settled in ASTEC. The policy guidelines of the ERC on the treatment of discounts extended by power suppliers were not retrospective. They did not take away or impair any vested rights of the rural electric cooperatives. The usage and implementation of the PPA formula were provisionally approved by the ERB in its Orders dated February 19, 1997 and April 25, 1997, and those Orders stated that the provisional approval was subject to review, verification, and confirmation by the ERB. Thus, the rural electric cooperatives did not acquire any vested rights in the usage and implementation of the provisionally approved PPA formula. Furthermore, the policy guidelines did not create a new obligation, impose a new duty, or attach a new disability; they merely interpreted R.A. No. 7832 and its IRR, particularly on the computation of the cost of purchased power, and did not modify, amend, or supplant the IRR.
• Grossed-Up Factor Mechanism: Notwithstanding the foregoing, the amount of over-recoveries ascertained by the ERC must be recomputed because of the invalid grossed-up factor mechanism utilized in the ERC Order dated July 27, 2006, which stated that one cause of the over-recovery was NEECO I’s failure to use the new grossed-up factor mechanism. In ASTEC, the Court held that the grossed-up factor mechanism amends the IRR of R.A. No. 7832 because it serves as an additional numerical standard that must be observed and applied by rural electric cooperatives in implementing the PPA. While the IRR explains and stipulates the PPA formula, it neither explains nor stipulates the grossed-up factor mechanism; the mechanism is admittedly new and provides a different result, having been formulated only after the issuance of the IRR. It is not the same as the PPA formula and is not subsumed in any of the five variables of the PPA formula. The grossed-up factor mechanism serves as a threshold amount to which the PPA formula is compared; any amount collected under the PPA that exceeds the Recoverable Cost computed under the grossed-up factor mechanism shall be refunded to consumers. The Recoverable Cost is the maximum allowable cost to be recovered from customers for a given month. The PPA formula and the grossed-up factor mechanism must both be observed and applied. The grossed-up factor mechanism accounts for the amount of power sold in proportion to the amount of power purchased, expressed as the Gross-Up Factor, and limits the Recoverable Cost by allowing recovery of the Cost of Purchased Power only in proportion to the amount of power sold. The PPA formula, on the other hand, does not account for the amount of power sold; it accounts for the amount of power purchased and generated, expressed as variable “B.” Thus, the grossed-up factor mechanism does not merely interpret R.A. No. 7832 or its IRR and is not merely internal in nature; it amends the IRR by providing an additional numerical standard that must be observed and applied in implementing the PPA. It is therefore an administrative rule that should be published and submitted to the U.P. Law Center to be effective. Since the records do not show that it was published and submitted, it is ineffective and may not serve as a basis for computing over-recoveries. The portions of the over-recoveries arising from its application are invalid. Its application to periods of PPA implementation prior to its publication and disclosure also renders it invalid for having been applied retroactively, because it imposes an additional numerical standard that creates a new obligation and imposes a new duty in respect of transactions already past. Rural electric cooperatives cannot be reasonably expected to comply with and observe the grossed-up factor mechanism without its publication. The principle of stare decisis enjoins adherence to the judicial precedents in ASTEC and SURNECO; since the questions raised were already comprehensively examined and settled, further arguments thereon are proscribed.

• Substantial Compliance with Rule 43 — The right to appeal is statutory, but courts should not deny it on technical grounds where the petitioner substantially complied with the rules. Before dismissing outright for failure to attach essential pleadings and records, the CA must assess whether the attached documents sufficiently substantiate the petition’s allegations. The test is whether the accompanying documents support the allegations; only relevant and pertinent documents must be attached; a document need not be attached if its contents appear in another attached document; and a petition lacking an essential pleading may still be given due course or reinstated upon later submission or if the higher interest of justice requires a merits decision. The Court applied this doctrine to set aside the CA’s dismissal because the attached ERC issuances sufficiently enabled review.
• Right to Appeal and Liberal Construction of Procedural Rules — While the right to appeal is statutory and must be exercised in accordance with the rules, it is an essential part of the judicial system. Courts should proceed with caution so as not to deprive a party of the right to appeal and should ensure the amplest opportunity for the proper and just disposition of causes, freed from the constraints of technicalities. The Court applied this principle in favor of NEECO I.
• Self-Executory Nature of Section 10, R.A. No. 7832 — Section 10 of R.A. No. 7832 imposed caps on the recoverable rate of system loss and was self-executory; it did not require enabling rules or any action by the ERC. The caps took effect on January 17, 1995. NEA Memorandum No. 1-A, which authorized the multiplier scheme, is a mere administrative issuance that cannot prevail against the legislative caps and is deemed repealed. NEECO I could not rely on the multiplier scheme.
• EPIRA Does Not Repeal Section 10 Caps Until ERC Replaces Them — Section 43(f) of the EPIRA Law amended Section 10 of R.A. No. 7832 by authorizing the ERC to determine replacement caps based on technical considerations. However, the existing caps remain in force until the ERC actually prescribes new caps. The ERC may also adopt and maintain the prevailing caps if consistent with its mandate to ensure reasonable electricity rates. The Court applied this to reject NEECO I’s claim that Section 10 was repealed.
• Police Power over Public Utility Rates — The regulation of rates charged by public utilities is an exercise of the State’s police power. When private property is used for a public purpose and affected with public interest, it becomes subject to regulation for the common good. The ERC’s refund directive was a valid exercise of this power to protect public interest and ensure that the PPA remains a cost-recovery mechanism, not a revenue-generating scheme. No unlawful taking or impairment of contract results from the net-of-discount computation or the system-loss caps.
• PPA as a Cost-Recovery Mechanism — The PPA formula is strictly an adjustment mechanism for recovering costs actually incurred in purchasing electricity. It cannot include discounts not passed on to consumers or costs not incurred by the cooperative. If discounts from power suppliers are not factored in, electric cooperatives would impermissibly retain or earn from the PPA. Consumers must not shoulder the gross cost of purchased power. The Court applied this to uphold the net-of-discount computation.
• Administrative Due Process — Administrative due process simply requires an opportunity to explain one’s side or to seek reconsideration of the action or ruling complained of. It means being given the opportunity to be heard before judgment; a formal trial-type hearing is not essential. It is enough that the parties are given a fair and reasonable chance to demonstrate their positions and present evidence. The Court found that NEECO I was accorded this opportunity through documentary submissions, conferences, and reconsideration.
• Interpretative Regulations Exception to Publication and Filing — Administrative rules generally require publication and filing to be effective, but interpretative regulations are excepted. They add nothing to the law and do not affect substantial rights; hence, they need not be published in the Official Gazette or filed with the U.P. Law Center. The ERC Orders dated June 17, 2003 and January 14, 2005 were interpretative because they merely interpreted the computation of purchased power cost under R.A. No. 7832 and its IRR.
• No Retroactive Application Where No Vested Rights — A rule is retrospective if it takes away or impairs vested rights acquired under existing laws, creates a new obligation, imposes a new duty, or attaches a new disability in respect of transactions already past. The ERC’s policy guidelines were not retrospective because the PPA formula was only provisionally approved and subject to review, verification, and confirmation; the cooperatives acquired no vested rights. The guidelines merely interpreted the law and did not create new obligations.
• Grossed-Up Factor Mechanism as an Unpublished Administrative Rule — The grossed-up factor mechanism is not a mere interpretation of the IRR; it amends the IRR by adding an additional numerical standard for implementing the PPA. It must therefore be published and submitted to the U.P. Law Center to be effective. Because it was not shown to have been published or filed, it is ineffective and cannot be the basis for computing over-recoveries. Its retroactive application to prior PPA periods is also invalid.
• Stare Decisis — For the sake of certainty, a conclusion reached in one case should be applied to those that follow if the facts are substantially the same, even though the parties may be different. Absent powerful countervailing considerations, like cases ought to be decided alike. Where the same questions relating to the same event have been put forward by similarly situated parties in a previous case litigated and decided by a competent court, stare decisis bars relitigation of the same issue. The Court applied this to hold that the issues raised by NEECO I were already settled in ASTEC and SURNECO.

• "x x x [T]he significant determinant of the sufficiency of the attached documents is whether the accompanying documents support the allegations of the petition." — This passage states the test for substantial compliance with Rule 43, allowing an appeal to proceed where the attached documents substantiate the petition’s allegations.
• "The regulation of rates to be charged by public utilities is founded upon the police powers of the State and statutes prescribing rules for the control and regulation of public utilities are a valid exercise thereof." — This passage supplies the police-power basis for upholding the ERC’s rate regulation and refund directive against non-impairment and unlawful-taking challenges.
• "The grossed-up factor mechanism amends the IRR by providing an additional numerical standard that must be observed and applied in the implementation of the PPA." — This passage is the ratio for invalidating the grossed-up factor mechanism as an administrative rule that required publication and filing.
• "The policy guidelines of the ERC did not take away or impair any vested rights of the rural electric cooperatives." — This passage explains why the ERC’s policy guidelines were not invalid for retroactive application.

• Association of Southern Tagalog Electric Cooperatives, Inc. vs. ERC, G.R. No. 192117, September 18, 2012, 681 SCRA 119 — Controlling precedent; settled the treatment of discounts in the PPA, the interpretative nature of the June 17, 2003 and January 14, 2005 Orders, the non-retroactivity of the policy guidelines, and the invalidity of the grossed-up factor mechanism.
• Surigao del Norte Electric Coop., Inc. (SURNECO) vs. ERC, 646 Phil. 402 (2010) — Controlling precedent; upheld Section 10 caps over NEA Memorandum No. 1-A, held that EPIRA did not repeal the caps until replaced, sustained rate regulation as police power, and found administrative due process satisfied.
• Galvez vs. Court of Appeals, G.R. No. 157445, April 3, 2013, 695 SCRA 10 — Followed; provided the substantial-compliance test and the three guideposts for determining the necessity of attaching pleadings and records.
• Posadas-Moya and Associates Construction Co., Inc. vs. Greenfield Development Corporation, 451 Phil. 647 (2003) — Followed; reiterated that rules of procedure are tools to facilitate justice and that strict application should be eschewed where it would defeat substantive rights.
• Silverio vs. CA, 454 Phil. 750 (2003) — Followed; failure to attach a lower court decision was not fatal where the decision sought to be reviewed was attached.
• National Housing Authority vs. Basa, Jr., et al., 632 Phil. 471 (2010) — Followed; dismissal was unwarranted where the records before the court were sufficient to dispose of the case.
• Spouses Lanaria vs. Planta, 563 Phil. 400, 416 (2007) — Cited; the right to appeal is statutory and one who seeks to avail of it must comply with the rules.
• Aquino vs. Philippine Ports Authority, G.R. No. 181973, April 17, 2013, 696 SCRA 666, 678 — Cited; explained the principle of stare decisis and the bar against relitigating settled issues.

• Section 10, R.A. No. 7832 — Imposed caps on the recoverable rate of system loss for rural electric cooperatives. The Court held it was self-executory, took effect on January 17, 1995, and could not be overridden by NEA Memorandum No. 1-A; it also remained in force until replaced by the ERC under the EPIRA Law.
• Section 43(f), R.A. No. 9136 (EPIRA Law) — Authorized the ERC to establish rate-setting methodology and to replace the Section 10 caps based on technical considerations. The Court interpreted it to allow the existing Section 10 caps to subsist until the ERC actually prescribes new caps.
• Section 5, Rule IX, IRR of R.A. No. 7832 — Provided the guiding PPA formula. The Court noted that the PPA formula was provisionally approved and subject to review, verification, and confirmation, so no vested rights attached to its use.
• Section 6, Rule 43, Rules of Court — Requires a petition for review to state the full names of the parties, contain a concise statement of facts and issues, be accompanied by a duplicate original or certified true copy of the award, judgment, final order, or resolution appealed from, together with certified true copies of material portions of the record and other supporting papers, and contain a sworn certification against forum shopping. The Court applied the substantial-compliance doctrine to this provision.
• Section 7, Rule 43, Rules of Court — Provides that failure to comply with the requirements regarding docket fees, deposit for costs, proof of service, contents, and accompanying documents is a sufficient ground for dismissal. The Court held that dismissal was not warranted under the circumstances.
• Section 5, Rule 43, Rules of Court — Cited by the CA as basis for requiring that CLECA be furnished a copy of the petition. The Court held that CLECA did not have to be impleaded or furnished a copy because the challenged orders concerned only NEECO I.
• Section 18, Chapter 5, Book I, Administrative Code — Requires publication of laws and rules in the Official Gazette or a newspaper of general circulation. The Court held that interpretative regulations are excepted from this requirement.
• Sections 3 and 4, Chapter 2, Book VII, Administrative Code — Require filing of rules with the U.P. Law Center and provide for their effectivity. The Court held that interpretative regulations are excepted from the filing requirement, but the grossed-up factor mechanism, being an amendment to the IRR, had to be published and filed.
• P.D. No. 269 — Organized rural electric cooperatives to engage in electricity distribution on a non-profit basis. The Court cited this to support the conclusion that the PPA should remain a cost-recovery mechanism.
• R.A. No. 9136 (EPIRA Law) — Created the ERC, replacing the ERB, and transferred pending cases to it. The Court applied its provisions in resolving the effect of the law on the Section 10 caps.
• R.A. No. 7832 — The Anti-Electricity and Electric Transmission Lines/Materials Pilferage Act of 1994. The Court applied its provisions and IRR throughout the resolution of the PPA and system-loss issues.

Presbitero J. Velasco, Jr. (Chairperson), Diosdado M. Peralta, Jose Portugal Perez, and Francis H. Jardeleza concurred. No separate concurring opinions are provided in the text.