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Puerto Rico

Puerto Rico

Incentives/Policies for Renewables & Efficiency

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Puerto Rico - Interconnection Standards   

Last DSIRE Review: 08/22/2014
Program Overview:
State: Puerto Rico
Incentive Type: Interconnection
Eligible Renewable/Other Technologies: Solar Thermal Electric, Photovoltaics, Landfill Gas, Wind, Biomass, Hydroelectric, Fuel Cells, CHP/Cogeneration, "Other Sources" of Renewable Energy, Anaerobic Digestion, Small Hydroelectric, Fuel Cells using Renewable Fuels, Microturbines, Other Distributed Generation Technologies
Applicable Sectors: Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Multi-Family Residential, Agricultural, Institutional, Other
Applicable Utilities:PREPA
System Capacity Limit:No limit specified
Standard Agreement:Yes
Insurance Requirements:Vary by system size and/or type; levels established by PREPA
External Disconnect Switch:Required
Net Metering Required:No
Web Site:
Authority 1:
Date Enacted:
Date Effective:
PREPA Reglamento 7544 (in Spanish)
Authority 2:
Unofficial Translation of Puerto Rico Interconnection Rules

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.

On May 27,2014 it was decided that, the Energy Commission may require reliability studies for the interconnection of generators with a generating capacity greater than 500 kW but less than 1 MW. PREPA is required to adopt regulations for the interconnection of distributed generators with a generating capacity of less than one (1) MW, as well as regulations for the interconnection of distributed generators with a generating capacity between 1 MW and 5 MW. Regulations must take effect 180 days starting from May 27, 2014.

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.

  PREPA Customer Service
Autoridad de EnergĂ­a Electrica de Puerto Rico
Puerto Rico Electric Power Authority
PO Box 364267
San Juan, PR 00936-4267
Phone: (787) 289-3434
Fax: (787) 289-4120
Web Site:
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Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2014 - 2015 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.