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Puerto Rico

Puerto Rico

Incentives/Policies for Renewables & Efficiency

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Puerto Rico - Net Metering   

Last DSIRE Review: 08/27/2014
Program Overview:
State: Puerto Rico
Incentive Type: Net Metering
Eligible Renewable/Other Technologies: Photovoltaics, Wind, "Other Sources" of Renewable Energy, Other Distributed Generation Technologies
Applicable Sectors: Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Multi-Family Residential, Agricultural, Institutional
Applicable Utilities:PREPA
System Capacity Limit:5 MW for non-residential connected to transmission or sub-transmission lines per Act 103 of 2012; 1 MW for non-residential connected to distribution lines; 25 kW for residential
Aggregate Capacity Limit:No limit specified
Net Excess Generation:Credited to customer's next bill at retail rate (with certain limitations); excess reconciled annually
REC Ownership:Not addressed
Meter Aggregation:Not addressed
Web Site:
Authority 1:
Date Enacted:
Date Effective:
2007 PR LS 114
Authority 2:
Date Enacted:
Date Effective:
S2377 (2008) Act No. 211
Authority 3:
Date Enacted:
Date Effective:
PREPA Reglamento 7579 (Net Metering Regulations - In Spanish)
Authority 4:
Unofficial Translation of Puerto Rico Net Metering Rules
Authority 5:
Date Enacted:
Date Effective:
S.B. 2472 (Act 103)
Authority 6:
Date Enacted:
Date Effective:
Act No. 57-2014

Puerto Rico enacted net-metering legislation in August 2007, allowing customers of Puerto Rico Electric Power Authority (PREPA) to use electricity generated by solar, wind or "other" renewable-energy resources to offset their electricity usage.

Eligibility and Availability

This law applies to residential systems with a generating capacity of up to 25 kilowatts (kW) and non-residential systems up to one megawatt (MW) in capacity.*

Net Excess Generation

Customer net excess generation (NEG) is carried over as a kilowatt-hour (kWh) credit to the following month, but NEG credit is limited to a "daily maximum" of 300 kWh for residential customers and 10 megawatt-hours (MWh) for commercial customers. Customers with excess credits remaining at the end of a 12-month period (ending in June) will be compensated as follows: 75% of the excess credits will be purchased by PREPA at a rate of $0.10 per kWh or "the amount resulting from the subtraction of the adjusted fuel fee based on the variable costs incurred by the public corporation exclusively for the purchase of fuel and energy, from the total price charged by the public utility to its customers, converted into kilowatt-hours, whichever is greater;" and the remaining 25% will be granted to PREPA to distribute as a credit or reduction applied to the electricity bills of public schools.

Special Provisions
System owners must, at their own expense, use a bi-directional meter installed by an expert electrician. Systems must comply with the standards and specifications on minimum efficiency requirements established by the Puerto Rico Energy Affairs Administration (EAA) or another designated government body. In 2008, legislation (S2377 Ley 211) was enacted that removed the requirement that systems be installed by a North American Board of Certified Energy Practitioners (NABCEP) installer, and instead established that all systems must be installed by an electrical engineer or expert electrician that is registered with the EAA and meets the additional EAA requirements for renewable energy system installers. Yet, legislation enacted in 2012 applies this NABCEP requirement again. All equipment must be guaranteed for at least five years by the manufacturer or distributor. Installations must incorporate emissions and noise-control mitigation measures, when applicable.

Program Administrator Type
PREPA adopted the necessary regulations for compliance with this law in October 2008 and established the procedures for applying for net metering. A net metering application (in Spanish) is available on PREPA's website. PREPA and EAA must also develop and implement educational campaigns designed to inform consumers of the benefits of net metering and of available renewable-energy technologies.


* Senate Bill 2472 increased the capacity limit to 5 MW for non-residential customers connected to transmission or sub-transmission lines. The regulations have not yet been updated to reflect the changes implemented by the new law.

  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:
  General Info EAA
Energy Affairs Administration
P.O. Box 41314
San Juan, PR 00940
Phone: (787) 332-0914
Fax: (787) 721-3089
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.