Florida PSC Rule 25-6.065: Solar Net Metering Tariff Guide for 1-to-1 kWh Credits

Key Takeaways

• Florida's Rule 25-6.065 mandates 1-to-1 monthly kWh credits for excess solar generation.
• Unused energy credits can roll over for up to twelve months.
• Annual payouts for remaining credits are based on the utility's COG-1 avoided-cost rate.
• Solar system capacity is capped at 90% of the customer's utility distribution service rating.

What is Florida PSC Rule 25-6.065 and how does it govern solar net metering?

Florida Public Service Commission (FPSC) Rule 25-6.065 outlines the regulations for interconnecting and net metering customer-owned renewable generation. This rule ensures that customers with solar installations receive fair credit for the electricity they generate and send back to the grid. It applies to investor-owned utilities such as FPL, Duke Energy Florida, and TECO.

The rule specifies how excess generation is credited, how long credits can be carried over, and how any remaining credits are compensated. It also sets limits on system sizing and clarifies responsibilities for metering equipment and Renewable Energy Certificates (RECs).

Here are the primary provisions of Florida PSC Rule 25-6.065 as of August 2026:

| Annual Utility Filings Deadline | "In addition, each electric utility shall report the following, by April 1 of each year." | Figures as of August 2026.

How are excess solar credits handled in Florida?

Florida's net metering rule ensures that customers receive credit for the electricity they send back to the grid. "During any billing cycle, excess customer-owned renewable generation delivered to the investor-owned utility's electric grid shall be credited to the customer's energy consumption for the next month's billing cycle." This means you receive a 1-to-1 kilowatt-hour (kWh) credit for your excess generation, offsetting future consumption.

These "energy credits produced pursuant to paragraph (8)(e) shall accumulate and be used to offset the customer's energy usage in subsequent months for a period of not more than twelve months." This 12-month rollover period allows you to build up credits during high-production months (e.g., sunny summer) and use them during lower-production months (e.g., cloudy winter).

At the end of each calendar year, any remaining "unused energy credits" are not lost. Instead, "the investor-owned utility shall pay the customer for any unused energy credits at an average annual rate based on the investor-owned utility's COG-1, as-available energy tariff." This COG-1 rate is typically lower than the retail rate you pay for electricity. If a customer "leaves the system," their "unused credits for excess kWh generated shall be paid to the customer at an average annual rate based on the investor-owned utility's COG-1, as-available energy tariff."

What are the sizing and interconnection requirements for solar in Florida?

Florida PSC Rule 25-6.065 includes specific requirements for the sizing and interconnection of customer-owned renewable generation systems. Your system's gross power rating "Does not exceed 90% of the customer's utility distribution service rating." This cap ensures that the solar installation does not overwhelm the local grid infrastructure.

To determine the AC nameplate capacity for sizing purposes, "the AC nameplate generating capacity shall be calculated by multiplying the total installed DC nameplate generating capacity by .85 in order to account for losses during the conversion from DC to AC." This 0.85 multiplier accounts for typical system inefficiencies between DC panel output and AC inverter output.

The rule also facilitates "expedited interconnection of customer-owned renewable generation, up to 2 MW." This provision streamlines the process for most residential and many commercial solar installations, making it easier to connect to the grid. For more detailed information on interconnection procedures, you can consult our guide on Florida PSC Tier 1, 2, and 3 Solar Interconnection and Insurance Rules.

Who pays for net metering equipment and who owns RECs?

The Florida PSC rule clearly defines responsibilities for metering equipment and Renewable Energy Certificates (RECs). "Each investor-owned utility shall install, at no additional cost to the customer, metering equipment at the point of delivery capable of measuring the difference between the electricity supplied to the customer from the investor-owned utility and the electricity generated by the customer." This means the utility bears the cost of the specialized meter required for net metering.

Regarding RECs, "Customers shall retain any Renewable Energy Certificates associated with the electricity produced by their customer-owned renewable generation equipment." This provision ensures that solar system owners maintain ownership of the environmental attributes of their generated electricity, which can potentially be sold in REC markets.

How we verified Florida's net metering rules

We verified the details of Florida PSC Rule 25-6.065 by directly consulting the official document published by the Florida Public Service Commission. Our review was conducted on August 23, 2026, using the URL provided in our sources. We focused on the specific language within the rule to ensure accuracy regarding credit mechanisms, sizing limitations, and other key provisions.

This direct consultation allows us to present the statutory requirements as they are written, avoiding interpretations or secondary summaries. We aim to provide you with precise, evidence-based information directly from the regulatory source.

Navigating Florida's solar regulations for your installation

Understanding Florida's net metering rules is crucial for planning a solar installation. The 90% distribution service rating cap and the 0.85 DC-to-AC multiplier directly impact the maximum size of the system you can install. Using a solar sizing tool can help you estimate your potential system size based on these regulations and your energy needs.

While Florida's rules provide a clear framework, navigating the specifics of interconnection and utility processes can still be complex. We recommend reviewing our related guides, such as Florida PSC Tier 1, 2, and 3 Solar Interconnection and Insurance Rules, for a deeper understanding of the practical steps involved. Comparing these regulations with those in other states, like the Texas PUC Rule 25.211 Distributed Generation Interconnection Guide or the Delaware PSC Net Metering Delmarva Power Guide, can also highlight the unique aspects of Florida's approach.

Always confirm the latest requirements with your specific utility provider, as local implementation details can vary. The information presented here reflects the rule as published and accessed on August 23, 2026.