Puerto Rico - Interconnection Standards (Puerto Rico)

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Last modified on February 12, 2015.

Rules Regulations Policies Program

Place Puerto Rico

Name Puerto Rico - Interconnection Standards
Incentive Type Interconnection
Applicable Sector Agricultural, Commercial, Industrial, Institutional, Local Government, Multi-Family Residential, Nonprofit, Residential, Schools, State Government, Other
Eligible Technologies Anaerobic Digestion, Biomass, CHP/Cogeneration, Fuel Cells, Fuel Cells using Renewable Fuels, Hydroelectric, Landfill Gas, Microturbines, Other Distributed Generation Technologies, Photovoltaics, Small Hydroelectric, Small Wind, Solar Thermal Electric, Wind, "Other Sources" of Renewable Energy
Active Incentive Yes

Implementing Sector State/Territory
Energy Category Renewable Energy Incentive Programs

Applicable Utilities PREPA

External Disconnect Switch Required

Insurance Requirements Vary by system size and/or type; levels established by PREPA

Net Metering Required No

Standard Agreement Yes

System Capacity Limit No limit specified

Website http://www.prepa.com
Date added to DSIRE 2008-12-15
Last DSIRE Review 2013-02-21

References DSIRE[1]


In 2007, the Autoridad de Energía Electrica de Puerto Rico (PREPA*) adopted interconnection standards based on the standard contained in the federal Energy Policy Act of 2005. PREPA promulgated interconnection rules in August 2008 that apply to all distributed generation (DG) projects that interconnect to PREPA’s electric distribution system. Interconnected systems must meet all safety and performance standards established by IEEE Standard 1547 as well as local construction and safety codes. A manual external disconnect switch is required for all interconnected systems.

Customer-generators seeking to interconnect first submit a standardized "Evaluation Request" to PREPA to determine whether or not the system will qualify for the "Simple Interconnection Process." The Simple Interconnection Process applies to inverter-based systems no more than 25 kW in capacity for single-phase systems, and no more than 200 kW for three-phase systems, and which meet additional technical requirements. If the system does not qualify for the Simple Process, PREPA requires a "Supplemental Study," which will determine if improvements are required to PREPA’s electric distribution system or if changes to the DG design are needed in order to safely connect the DG. The applicant will pay for related costs.

Once approved for interconnection and after all safety tests have been conducted and certified, PREPA and the customer-generator sign a standard interconnection agreement. The regulations state that the customer-generator must also secure general liability insurance ($100,000 in coverage for systems 10 kW or less, and $1 million in coverage for systems over 10 kW) and that PREPA must be endorsed as an additional insured on the policy; however, according to PREPA, it does not require this for residential, net-metered customers. Instead, these customers must sign an agreement stating that they assume responsibility for any possible damages their systems might cause to PREPA's.

The rules provide specific guidance on time lines for application and review processes, as well as specific processes for dispute resolution. See the forms page on PREPA's web site for all forms and applications related to interconnection.

* PREPA, the only electric utility in Puerto Rico, is a government-owned corporation. It is governed by a board of directors that are nominated by the governor and confirmed by the state legislative assembly. The board, via resolution and after following established procedures that include a public comment period, approved PREPA's interconnection rules on July 15, 2008.

Incentive Contact

Contact Name PREPA Customer Service
Department Autoridad de Energía Electrica de Puerto Rico
Division Puerto Rico Electric Power Authority
Address PO Box 364267

Place San Juan, Puerto Rico
Zip/Postal Code 00936-4267
Phone (787) 289-3434

Fax (787) 289-4120
Email servicios@prepa.com
Website http://www.prepa.com

Authorities (Please contact the if there are any file problems.)

Authority 1: PREPA Reglamento 7544 (in Spanish)
Date Effective 2008-09-05
Date Enacted 2008-08-05

Authority 2: Unofficial Translation of Puerto Rico Interconnection Rules

  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"