Florida PSC Tier 1, 2, and 3 Solar Interconnection and Insurance Rules

Key Takeaways

• Tier 1 solar systems are defined as 10 kW or less and have no general liability insurance requirement (August 2026).
• Tier 2 systems, between 10 kW and 100 kW, require up to $1 million in general liability insurance (August 2026).
• Tier 3 systems, between 100 kW and 2 MW, require up to $2 million in general liability insurance (August 2026).
• Utilities must complete physical inspections of interconnected systems within 30 calendar days of executing the Standard Interconnection Agreement (August 2026).

What are the Florida PSC Interconnection Tiers and Their Requirements?

The Florida Public Service Commission (FPSC) Rule 25-6.065 defines three tiers for customer-owned renewable generation systems, each with specific sizing, fee, and insurance requirements. These tiers determine the regulatory pathway for interconnecting your solar system to the grid.

Tier 1 systems are sized at 10 kW or less. Customers with Tier 1 systems are exempt from additional fees that are not charged to other retail customers without self-generation, including application fees (August 2026).

Tier 2 systems are those greater than 10 kW and less than or equal to 100 kW (August 2026).

Tier 3 systems are greater than 100 kW and less than or equal to 2 MW (August 2026).

These classifications are critical for understanding the obligations and processes involved in connecting your solar array.

What are the Insurance Requirements for Solar Interconnection in Florida?

General liability insurance is a key requirement for larger solar installations in Florida under Rule 25-6.065. The specific limits depend on your system's tier.

For Tier 1 systems, the investor-owned utility shall not require liability insurance (August 2026).

For Tier 2 systems, general liability insurance for personal and property damage, or sufficient guarantee and proof of self-insurance, is required in the amount of no more than $1 million (August 2026).

For Tier 3 systems, this requirement increases to no more than $2 million (August 2026).

These insurance provisions protect both the customer and the utility in the event of damage or liability arising from the interconnected system.

Do I Need a Disconnect Switch for My Solar System in Florida?

Florida PSC Rule 25-6.065 generally requires a manual disconnect switch for customer-owned renewable generation. This switch must be of the visible load break type and is installed at the customer's expense (August 2026).

However, there is an exemption for smaller systems. Inverter-based Tier 1 customer-owned renewable generation systems are exempt from this requirement, unless the manual disconnect switch is installed at the investor-owned utility's expense (August 2026).

Investor-owned utilities can inspect and open manual disconnect switches during grid emergencies without prior notice. This allows utilities to ensure grid safety and stability.

What are the Application and Inspection Timelines for Florida Solar Interconnection?

The interconnection process involves several time-bound steps for both the customer and the utility.

When you initially place your equipment in service, you must notify the investor-owned utility at least 10 days prior (August 2026). If you plan to modify your system, you must notify the utility by submitting a new application specifying the modifications at least 30 days prior to making them (August 2026).

Upon receiving your application, the investor-owned utility has 10 business days to provide written notice confirming receipt of all required documents or indicating any deficiencies (August 2026).

The utility must execute the Standard Interconnection Agreement within 30 calendar days of receiving a completed application. For Tier 3 customers, if an interconnection study is deemed necessary, the utility has 90 days from a completed application to execute the agreement (August 2026).

Finally, all physical inspections by the utility must be completed within 30 calendar days of receipt of the customer's executed Standard Interconnection Agreement (August 2026).

What Technical Standards Apply to Florida Solar Interconnections?

To ensure safety and compatibility with the existing grid, interconnected solar systems in Florida must adhere to specific technical standards. Rule 25-6.065 cites the following:

• IEEE 1547 (2003) Standard for Interconnecting Distributed Resources with Electric Power Systems (August 2026).
• IEEE 1547.1 (2005) Standard Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems (August 2026).
• UL 1741 (2005) Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (August 2026).

These standards ensure that your solar equipment is certified for safe and reliable operation when connected to the utility grid.

How We Verified These Rules

We verified the information presented in this article by directly accessing the official Florida Administrative Code, specifically Rule 25-6.065, titled "25-6.065 Interconnection and Net Metering of Customer-Owned Renewable Generation" (August 2026). Our review of this document was conducted on August 23, 2026.

Navigating Florida's Interconnection Process

Understanding these rules is a critical first step before designing or installing a solar energy system in Florida. The specific requirements for your project will depend on its size and the applicable tier. For further details on related regulations, you may consult our Florida PSC Rule 25-6.065 Solar Net Metering Tariff Guide. You can also use a solar sizing tool to estimate your system needs.