Public Utilities Law
Rate regulation, public utility commission procedures, utility infrastructure, and service obligations.
Overview
Public utilities law governs the regulation of essential services — electricity, natural gas, water, wastewater, and telecommunications — that are subject to government oversight due to their natural monopoly characteristics and critical importance to public welfare. Utilities are regulated at both the federal level (FERC for interstate energy, FCC for telecommunications) and the state level (public utility commissions or PUCs) to ensure just and reasonable rates, adequate service, and nondiscriminatory access.
Rate regulation is the core function of utility law. PUCs conduct rate cases in which utilities file applications to adjust their rates, and the commission determines the utility's revenue requirement based on its rate base (invested capital), operating expenses, and an allowed rate of return. The traditional cost-of-service ratemaking model has been supplemented by performance-based ratemaking, decoupled revenue mechanisms, and multi-year rate plans in some jurisdictions.
The rapid transformation of the energy sector — driven by renewable energy, distributed generation, electric vehicles, and grid modernization — has created new regulatory challenges. Net metering policies, which allow customers with solar panels to sell excess electricity back to the grid, are a major battleground. Utility restructuring and deregulation in some states has separated generation from transmission and distribution, creating competitive wholesale markets while maintaining regulated monopoly distribution service. Consumer protection issues include disconnection procedures, low-income rate assistance programs, and service quality standards.
Key Statutes
| Statute | Citation | Summary |
|---|---|---|
| Federal Power Act | 16 U.S.C. §§ 791a–828c | Establishes FERC authority over interstate electricity transmission and wholesale power sales, while states regulate retail electric service. |
| Public Utility Regulatory Policies Act of 1978 (PURPA) | 16 U.S.C. §§ 2601–2645 | Requires utilities to purchase power from qualifying facilities (small power producers and cogenerators) at avoided cost rates, promoting energy efficiency and independent power production. |
| Telecommunications Act of 1996 | 47 U.S.C. §§ 251–276 | Overhauled telecommunications regulation, promoting competition by requiring incumbent carriers to share network infrastructure and establishing interconnection requirements. |
Key Cases
Munn v. Illinois
94 U.S. 113 (1877)
Established that businesses 'affected with a public interest' can be regulated by the government, laying the foundation for public utility regulation.
Hope Natural Gas Co. v. Federal Power Commission
320 U.S. 591 (1944)
Established the end-result test for utility ratemaking, requiring that the overall result of the rate order be just and reasonable, not any particular ratemaking methodology.
Duquesne Light Co. v. Barasch
488 U.S. 299 (1989)
Addressed due process limits on utility ratemaking, holding that rates must provide a return sufficient to attract capital while not constituting a taking.
Key Regulations
FERC Electric Rate and Tariff Regulations
FERC (18 CFR Parts 35, 284)
Federal regulations governing wholesale electricity rates, tariff filings, market-based rate authorization, and open access transmission.
EPA Safe Drinking Water Standards
EPA (40 CFR Parts 141–143)
National primary drinking water standards that water utilities must meet, including maximum contaminant levels and treatment requirements.
Common Issues
- Rate case proceedings and revenue requirement determination
- Utility cost recovery for infrastructure investments
- Net metering and distributed generation rate design
- Service disconnection procedures and customer protections
- Utility grid modernization and smart grid investments
- Renewable energy integration and clean energy mandates
- Low-income rate assistance and affordability programs
- Utility wildfire liability and vegetation management
State Variations
Public utility regulation is primarily a state function, and each state's PUC or equivalent body has unique procedures, precedents, and policy priorities. Some states have restructured their electric utilities to allow retail competition (Texas, Pennsylvania, Illinois) while others maintain vertically integrated monopoly utilities. Net metering policies range from full retail rate compensation to reduced rates or successor tariff programs. Renewable portfolio standards exist in over 30 states with varying targets. Utility disconnection protections for low-income customers, elderly customers, and during extreme weather events differ by state. Some states require integrated resource planning while others do not. Utility wildfire liability standards vary significantly among western states.
Resources
National Association of Regulatory Utility Commissioners (NARUC)
Organization of state public utility commissioners, providing policy resources, research, and training on utility regulation.
Regulatory Assistance Project (RAP)
Independent organization providing technical assistance to utility regulators on energy policy, rate design, and clean energy.