CNFL official installing a temporary transformer

Temporary Transformer Connection Request

Profile of the Procedure (Associated with the 8220 Law)

General features.

Description of the procedure:

Transformer installation service that is provided at the request of the interested party to supply electric power for a specific event with a defined time. Within the area served by CNFL and that the conditions of the electrical network allow it.

Binding Documents:

- Standard "AR-NT-SUCOM" Supervision of the commercialization of electricity supply in low and medium voltage "

Other provisions:

- Costa Rican Electrical Code for the Safety of Life and Property.

- Table of Annual Percentages of Depreciation of the Directorate General of Direct Taxation, of the Ministry of Finance.

Term of resolution:

30 calendar days


When the subscriber or user suffers damage to his equipment or electrical appliances or his property, due to the quality of the power supply and he considers that there is responsibility on the part of the electric company, You must file your claim with that company no later than eight business days after the fact happened. Likewise, if there is damage to the production, the electric company shall, when the law corresponds, compensate them. The indemnification, in administrative headquarters, does not contemplate the lost profit or the lost profits for the damages in the production. The electric company will carry out the respective study and will communicate in writing to the subscriber or user, the resolution of their claim within a maximum period of 5 business days. If the result of their management is not satisfactory to their interests, the subscriber or user may submit the challenges indicated in the General Law of Public Administration or go to the ARESEP to raise the corresponding complaint.

Cost of the procedure:

It has no cost

General considerations.

Any capable person may request services and perform procedures on behalf of the applicant, client or user, by means of an authorization granted in accordance with article 283, of the General Law of Public Administration or special power, general or generalissimo.
The institution will keep the original of the authorization, the special power and the certifications of the general and general powers, will deliver a copy of the authorization and the special power to the authorized or special attorney, as appropriate and indicate which acts have been executed.
In the same way, you can contact our free call center 800-ENERGIA (800-3637442) or through the chat center where our executives will be assisting you.

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Administrative Requirements

Gazette No. 157, 18 of August 2014

In accordance with the Law 8990 of the 27 / 09 / 2011, which modifies the Law N ° 8220 "Protection of the citizen from the excess of requirements and administrative procedures", as established in his article 4, proceeds to publish the update of the requirements for the procedures related to the electric power supply service, provided by the Compañía Nacional de Fuerza y Luz, SA (CNFL) Description of requirements for Electric Services that apply to sectors of public roads in which the CNFL has electro-energy availability:

- We remind you that you must abide by the new electrical code contemplated in Decree No. 36979-MEIC.

- Regulations for the Officialization of the Costa Rican Electrical Code for the Safety of Life and Property.

General requirements.

A.1. For natural person:

- Original identity card for nationals, if they are foreigners must present documents proving their stay in the country, either: residence card, temporary permit for filing, refugee card, resident pensioner card or rentier resident card, territorial asylee card.

A.2 For legal entity:

- Original legal status (not greater than one month issued).

- Original identity card of legal representative, if they are foreigners must present documents proving their permanence in the country, either: residence card, temporary permit of filing, refugee card, resident pensioner card or rentier resident , territorial asylee card.


- Telephone number, exact address by province, canton and district, email, post office box of the person requesting the service or in case of companies the qualities of this, including their legal identity card.

- Pay the security deposit approved by the Public Services Regulatory Authority corresponding to the service requested, it is done when being attended at a window.

- Location, contract number or service meter number.

- In the case of new single-phase and three-phase services, provide location number of contract or service meter number of the nearest neighbor

- Copy of identification card and authorization letter for those who apply to process (in case of not being the subscriber of the service that is presented to perform the procedure or if it is a representative of the company)

- Up-to-date service (except in the case of new single-phase and three-phase services)

- Signature of application and / or corresponding acceptance contracts (in our agencies).

Specific requirements:

- Submit an application for the sealing of current electrical plans and, in case of being definitive, the “Proof of Receipt” ticket, issued by the (CFIA), signed by the professional responsible for the electrical work.

- Cancel the corresponding guarantee amount.

- Issue a signed note by the individual or legal entity requesting the service in which it is indicated:

a) Location number or reference meter

b) Indicate the load and voltage of the requested transformer.

c) Define the time required for the service.

- Sign the application (Handwritten signature or digital signature).

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Technical requirements

Visit the following link: National Technical Regulation ARESEP

Remember to hire the Engineer of your confidence to advise you adequately with the fulfillment of these requirements.

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Contact Information

  • Address:

    5 Avenue, 1 and 0 Street, Central Offices, San José, Costa Rica

  • Phone:

    (506) 2295-5000 / Monday to Friday from 7 am to 6 pm

  • Ext:

    10026-1000 San José, Costa Rica

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