Introduction

Electric reliability regulation in the United States was fundamentally strengthened by the Energy Policy Act of 2005 (EPAct 2005). Following the widespread 2003 Northeast blackout, Congress moved away from a largely voluntary industry-based reliability system and created a legally enforceable federal framework. Title XII of EPAct 2005 added section 215 to the Federal Power Act (FPA), codified at 16 U.S.C. § 824o, giving the Federal Energy Regulatory Commission (FERC) substantial authority over reliability of the Bulk-Power System.

FERC and NERC Regulatory Structure

Section 215 does not generally require FERC itself to draft detailed reliability standards. Instead, FERC certifies an independent Electric Reliability Organization (ERO) responsible for developing and enforcing standards subject to Commission oversight. In 2006, FERC certified the North American Electric Reliability Corporation (NERC) as the ERO. FERC may approve proposed standards when it determines that they are just, reasonable, not unduly discriminatory or preferential, and in the public interest.

Once approved, NERC Reliability Standards become legally mandatory for registered users, owners and operators of the Bulk-Power System. Standards cover matters including transmission operations, system planning, emergency preparedness, protection and control systems, vegetation management, cybersecurity and physical security.

Compliance and Enforcement

FERC and NERC can enforce approved reliability standards through audits, investigations, spot checks, violation notices and mitigation requirements. NERC delegates significant compliance responsibilities to six Regional Entities, although enforcement remains subject to FERC oversight. Section 215 also permits substantial civil penalties. FERC states that violations can attract penalties exceeding $1 million per day per violation, with the seriousness of the violation and remedial efforts relevant to penalty assessment.

The framework continues to evolve. In 2026 FERC approved updated Critical Infrastructure Protection standards addressing virtualization and also directed NERC to develop standards concerning reliability risks associated with large computational loads.

Case Law

Case Name/Citation: Alcoa Inc. v Federal Energy Regulatory Commission, 564 F.3d 1342 (D.C. Cir. 2009)

Facts: Alcoa challenged FERC orders implementing section 215 and approving aspects of NERC's structure and funding arrangements as the designated Electric Reliability Organization.

Legal Issue: Whether FERC acted lawfully in approving the ERO framework and NERC's proposed allocation of reliability-regulation costs.

Judgment: The D.C. Circuit denied Alcoa's petition for review and upheld FERC's decision as reasonable.

Legal Principle/Ratio: EPAct 2005 gives FERC substantial supervisory authority over the ERO while allowing flexibility in implementing the institutional and financial arrangements required for nationwide reliability regulation.

Significance: The case confirmed the legality of the federal NERC–FERC reliability structure created under section 215 and reinforced NERC's central role in mandatory reliability governance.

Case Name/Citation: Cogentrix Energy Power Management, LLC v Federal Energy Regulatory Commission, 24 F.4th 677 (D.C. Cir. 2022)

Facts: Owners of New England generation facilities incurred costs complying with mandatory Critical Infrastructure Protection standards. ISO New England created a tariff mechanism allowing eligible facilities to recover certain compliance costs. The owners challenged FERC's determination limiting recovery largely to prospective costs following appropriate rate filings.

Legal Issue: Whether EPAct-related reliability compliance costs could be recovered retroactively notwithstanding Federal Power Act rate requirements.

Judgment: The D.C. Circuit upheld FERC and denied the petition for review.

Legal Principle/Ratio: Although the Federal Power Act permits recovery of prudently incurred costs required for compliance with mandatory reliability standards, recovery remains subject to sections 205 and 206, including the filed-rate doctrine and prohibition against retroactive ratemaking.

Significance: Reliability regulation therefore operates alongside ordinary federal rate regulation; mandatory compliance does not automatically override established tariff and cost-recovery requirements.

Conclusion

The Energy Policy Act of 2005 transformed U.S. electricity reliability regulation by creating a mandatory, enforceable federal reliability regime administered through FERC, NERC and Regional Entities. Section 215 combines industry technical expertise with governmental oversight, while judicial review ensures that reliability standards, enforcement measures and compliance-cost recovery remain consistent with the Federal Power Act and administrative-law principles.