Pennsylvania PUC 52 Pa Code 75 13 Solar Net Metering Guide

Key Takeaways

• Residential solar systems are capped at 50 kW nameplate capacity for net metering (August 2026).
• Nonresidential solar systems can be up to 3 MW nameplate capacity for net metering (August 2026).
• Systems 500 kW or larger require explicit Commission approval to net meter (August 2026).
• Customer-generators receive full retail kilowatt-hour rate credit for exported electricity (August 2026).

What are the Net Metering Rules in Pennsylvania under 52 Pa. Code § 75.13?

Pennsylvania's 52 Pa. Code § 75.13 establishes the framework for net energy metering, allowing solar system owners to receive credit for excess electricity sent back to the grid. This regulation applies across major utilities including PECO, PPL Electric Utilities, Duquesne Light, and FirstEnergy companies. The code outlines specific capacity limits, crediting mechanisms, and ownership rights for Alternative Energy Credits (AECs) (August 2026).

The table below summarizes the primary net metering provisions as defined in 52 Pa. Code § 75.13:

| Annual Reporting | EDC and EGS shall submit an annual net metering report to the Commission | Figures as of August 2026.

How We Verified Pennsylvania's Net Metering Regulations

We verified these provisions by directly consulting the official Pennsylvania Code and Bulletin, specifically 52 Pa. Code § 75.13, on August 23, 2026. This source provides the statutory language governing net energy metering standards in Pennsylvania. All figures and requirements presented in this guide are directly extracted from this legal document.

What are the Capacity Limits for Solar Net Metering in Pennsylvania?

Pennsylvania law sets distinct capacity limits for residential and nonresidential solar net metering systems. For residential service locations, an alternative energy system must have a nameplate capacity of not greater than 50 kW (August 2026). This ensures that residential systems are appropriately sized for typical household consumption.

For other customer service locations, such as commercial or industrial properties, the alternative energy system must have a nameplate capacity not larger than 3 MW (August 2026). This higher limit accommodates the greater energy demands of nonresidential operations.

A key threshold exists for larger installations: an alternative energy system with a nameplate capacity of 500 kW or more must have Commission approval to net meter (August 2026). This requirement introduces an additional regulatory step for significant projects, ensuring oversight by the Pennsylvania Public Utility Commission (PUC).

How Does Compensation for Excess Generation Work?

Under 52 Pa. Code § 75.13, Electric Distribution Companies (EDCs) and Default Service Providers (DSPs) are mandated to credit a customer-generator at the full retail kilowatt-hour rate (August 2026). This full retail rate includes generation, transmission, and distribution charges, providing comprehensive compensation for the electricity supplied to the grid.

Furthermore, the regulation specifies how any remaining excess generation is handled annually. At the end of each year, the DSP must compensate the customer-generator for any remaining excess kilowatt-hours generated (August 2026). This ensures that customer-generators receive financial benefit for all their surplus energy production.

What About Alternative Energy Credits (AECs) and Nondiscriminatory Rates?

A significant provision of 52 Pa. Code § 75.13 is the clear statement regarding the ownership of Alternative Energy Credits (AECs). A customer-generator that is eligible for net metering owns the alternative energy credits of the electricity it generates (August 2026). This ownership right allows system owners to retain and potentially sell these credits, adding another revenue stream to their solar investment.

The code also mandates that EDCs and DSPs shall provide net metering at nondiscriminatory rates (August 2026). These rates must be identical with respect to rate structure and retail rate components, preventing utilities from offering less favorable terms to net metering customers compared to standard customers.

Are There Other Key Requirements for Net Metering Eligibility?

Beyond capacity limits and compensation, 52 Pa. Code § 75.13 includes other important eligibility criteria. An alternative energy system must have electric load, independent of the alternative energy system, behind the meter and point of interconnection of the alternative energy system (August 2026). This requirement ensures that the system is primarily designed to offset on-site consumption rather than solely acting as a generation facility for the grid.

The regulation also explicitly states that the owner or operator of the alternative energy system may not be a utility (August 2026). This prevents utilities from directly participating in net metering as customer-generators, maintaining a clear distinction between utility roles and customer roles.

Finally, EDCs and Electric Generation Suppliers (EGSs) that offer net metering have an annual reporting obligation. They shall submit an annual net metering report to the Commission (August 2026), allowing the PUC to monitor the implementation and impact of net metering across the state.

Navigating Pennsylvania's Solar Regulations

Understanding these regulations is crucial for anyone considering a solar installation in Pennsylvania. For more detailed information on the interconnection process, you can consult our guide on Pennsylvania PUC Level 1 and Level 2 Solar Interconnection. If you are comparing regulations across states, you might find our guides on Virginia SCC 20 VAC 5-315 Solar Net Metering Tariff or Ohio PUCO Rule 4901-1-22 Distributed Generation Interconnection useful. To estimate the appropriate size for your solar system based on your energy needs, you can use a solar sizing tool.