FAQs

To register for the Private Area, we will ask you for the following information:

• Name and surname(s) / Company name
• Telephone number
• Email address
• Identification document (NIF/CIF/NIE)
• Password

After entering the data, we will send you an email. It is vital that you click on Enter the private area to confirm your email address and complete the registration process.

Once registered, and after linking your account to an electricity supply point, you can consult the data on the supply point in question and all those for which you hold the access contract. You can also check your electricity consumption and your maximum power demand values by periods. You can request certificates, check your meter status, get instant readings, and report incidents in your supply. We also explain how to change your contracted power.

In addition, if you generate electricity through private installations connected to the distribution network, we will provide information on the volume of energy you generate and supply to the network, and if you produce for self-consumption, you will be able to see all your curves.

You can request connections as an applicant or as the manager of a supply point. We will explain the documentation you need and help you with the formalities and monitoring your request. You can also manage a power line bypass.

An applicant is the individual or legal person requesting a network connection. They must be registered in the Private Area. An owner is the individual or legal person who owns the installation (in the case of consumption) or the owner of the installation that is entitled to a connection (in the case of generation). Finally, a payer is the individual or legal person who receives an invoice in their name.

Yes, we are working to include more functions in this channel. As we add more services, we will keep you informed on the Digital Services Platform or by email.

You can see the data of the contract holder (name and surname(s), company name, identification document, etc.) as well as the technical data of the point of consumption or generation, such as the contracted power, the consumption rate, the voltage and the type of installation.

In the section My Consumption, enter a start and end date according to the period you want to check, or choose one of your invoices, and we will show you the information about your electricity consumption in graphs and in figures.

You will be able to see your total consumption, expressed in kWh, as well as the average, maximum and minimum consumption during that period, and you will be able to see the consumption by months, days or hours. You can export the information to a file.

Yes, you must manage “operational notification” whenever you have a surplus, taking into account the installation’s level of significance. On our Digital Services Platform, you’ll find a page, with a link to the Technical Supervision Standard (NTS Spanish initials), where you can also download the Commissioning Guide for Power Generation Modules Connected to the Distribution Network.

On our Digital Services Platform, we have a low-voltage enclosure tool.

For more detailed information on the location of our installations, consult the graphic information related to our network on the Inkolan website. Another option is to provide us with the reference number of the nearest or most convenient support or transformer station that you find for your installation.

• You can find out all you need to know about managing your self-supply on our Digital Services Platform. Visit the following link.
• If you have any questions about the connection and measurement diagrams, you can find more information here.

You can find the Self-consumption tool on our Digital Services Platform.

If you want UFD to carry out the extension work, you must have asked us for an extension estimate when you opened the request. Nonetheless, you can still decide to carry out the extension work yourself if you prefer.

You must provide a written statement explaining why you are exempt from submitting this document.

If you don’t have to provide a guarantee for your installation in your Autonomous Community, you must send us a letter justifying this exemption because, if we have requested a guarantee, it means that we considered it necessary in accordance with the information used to make the request. In this regard, check that you applied for access and connection permits for self-supply and not for a generation installation.

First of all, check if you still need to provide any documentation and whether you have managed your “operational notifications”. When a request has this status, it normally means that the client still needs to send us certain documents. If this is your case, send us the relevant documentation through your private area. What documentation is needed to process my request? When we send you the access and connection permits, we also tell you that we need the low-voltage electrical installation certificate (CIE Spanish initials) and the express connection request (this is a document that you must write yourself, indicating that you want to connect your installation). Once we have received and validated these documents, we will review your installation. If this review is satisfactory, we will then contact you via email asking for the information we need to draw up the technical access contract (CTA Spanish initials). Once this contract has been signed by both parties, we will upload it to your request file and send it to you along with the manager’s report and the production installation code for the purpose of settlement (CIL Spanish initials). This is when your request will be closed and you will now be able to contact your supply company to contract self-supply and the corresponding surplus. Don’t forget to ask us for the necessary “operational notifications that apply to you.

The CGP must be located on the boundary of your property and must be accessible from the public thoroughfare.

It is not possible to install a three-phase meter in a single-phase meter connection. In order to make this possible, a three-phase modular column with a busbar/module/terminal strip would have to be added.

If you have chosen to rent a meter, UFD will install it during the contracting process.

At the following link to our Digital Services Platform, you can find a list of approved devices. You can also find the particular specifications for measuring power in low voltage networks by clicking here. Please note that you may also choose to have the meter installed by your distribution company (e.g., UFD). In this case, it will be installed during the contracting process.

The amount of the valuation is calculated in accordance with Article 6 of Royal Decree 1699/2011. You can also consult Article 12.5 of Royal Decree 1183/2020, which refers to the article mentioned above.

You can get a CAU on our Digital Services Platform by filling out the form you’ll find at this link.

You should request the capacity that you need. The installation’s installed capacity shall be the nominal power of the inverter or the joint power of all the inverters. The capacity of a self-supply installation will be the nominal power of the inverter, as long as there is no system that limits discharge.

You must provide us with the agreement between owners when the consumer does not own the self-supply installation. It must be signed by both parties to show that they agree to the installation. It is not the same as the sharing agreement, which must include all of the consumers associated to a collective self-supply installation.

The reinforcement estimate corresponds to any work that the distribution company must carry out for safety reasons before the installation can be connected. The extension estimate, on the other hand, corresponds to any work that you can carry out yourself.  You can request an extension estimate from us when you register your connection request. Nonetheless, if you decide to carry out the extension work yourself, you will have to transfer it to us afterwards.

These installations must be carried out in accordance with the UFD Technical Specifications approved by the Spanish Ministry of Industry and Tourism, which you can find at the following link.

• According to Royal Decree-Law 23/2020, you must provide us with the following documentation or, failing that, indicate that you are exempt from the requirement:
  • 1. Application submitted and accepted for prior administrative authorisation. (Deadline: 6 months)
  • 2. Favourable environmental impact statement obtained. (Deadline: 31 months)
  • 3. Prior administrative authorisation obtained. (Deadline: 34 months)
  • 4. Administrative authorisation for construction obtained. (Deadline: 37 months)
  • 5. Definitive administrative authorisation for exploitation obtained. (Deadline: 5 years)

You have 30 business days (see Point 1 of Article 14 of Royal Decree 1183/2020 and the Second Additional Provision for information on how deadlines are calculated).

You have 20 business days. Once you have sent them, we may ask you to make up to 2 corrections to the documents, in which case you will have another 20 business days to submit them again. If there are still any errors or missing documents, we will have to reject the request.

This document is only required for installations with a voltage of over 36 kV at the connection point, or if the connection is carried out directly in a substation.

As stated in Point 3 of the Third Additional Provision of Royal Decree-Law 15/2018, once you have paid 10% of the budget for the preliminary proposal and obtained prior administrative authorisation for the production installation, within four months of the last of the two previous steps, the holder of the access and connection permit will have to sign a project commissioning contract with us, as the network operator, for the network facilities to which the producer will connect their installation.

• Below you can find a list of the most important applicable legislation:
  • Network Codes and Technical Regulations for the Supervision of Generators
  • Royal Decree-Law 23/2020
  • Power Sector Act 24/2013 of 26 December
  • Royal Decree-Law 15/2018
  • Royal Decree 1955/2000
  • Royal Decree 1110/2007(Unified regulation of electric system measurement points)
  • Circular 1/2021
  • CNMC Resolution of 20 May 2021
  • Royal Decree 1699/2011 applies to:
    • All low-voltage technologies with a capacity of up to 100 kW
    • Cogeneration, biogas and biomass up to 1,000 MW and with a voltage of up to 36 kV
  • Royal Decree 413/2014 applies to:
    • All technologies with a capacity of over 100 kW, or with a capacity of less than 100 kW and a voltage of over 1 kV (except for cogeneration, biogas and biomass)
    • Cogeneration, biogas and biomass of over 1000 MW or voltage of over 36 kV
  • Royal Decree 244/2019 applies to self-supply
  • Royal Decree 1183/2020, of 29 December, on access and connection to electricity transmission and distribution networks.

The switching centre must be accessible from the public thoroughfare. If the plot where the photovoltaic plant (PVP) is located cannot be freely accessed from the public thoroughfare, there are two options:

1. Install the switching centre on another plot where you can get a permit, and run your line to the PVP for which you hold a permit.
2. Submit a request to change the location of the PVP, as long the new location is considered the same installation as per the conditions established in Annex II of Royal Decree 1955/2000.

If there is a switching centre, it must not be located in the same building as the CPMC and they shall be in different but adjacent enclosures as the electrical distance (in wiring) must not exceed 50 metres and the cable routing is long with all the inputs/outputs to the cells (according to Order TEC/1281/2019, of 19 December, approving the technical instructions supplementing the Unified Regulation on electricity system measuring points).

You should always refer to the most recent version of our “Particular Specifications. Technical requirements for the connection of HV installations of Un<=36 kV”. You can find it here.

• In order for the installation to be commissioned, you must install an inverter that appears in the list of verified mechanisms that we have specified on our Digital Services Platform as we have checked that these devices comply with the required standards.
• If the inverter you install is not listed, you should request verification. You can consult the list and request verification at the following link. Once your inverter has been verified, we will include it in the list published on our Digital Services Platform.

In principle, the data should not coincide because the meter measurement (both on the meter’s display and indicated in our private area) is the gross measurement recorded by the measuring device.  By contrast, the data on your bill are calculated power items (e.g., network consumption and discharge. The items on your bill will depend on your measuring device). This is calculated for each hour by determining the balance of consumption minus generation (and vice versa), which is why it may not coincide with the gross measurement shown on the measuring device.

Depending on the applicable measuring diagram and, therefore, on the measuring devices available, different items associated with self-supply may be calculated. Network consumption and discharge can always be calculated. The generation island must have at least a measuring device for all other items (total demand, total generation, self-consumption, etc.). In other words, installations with measurement scheme A only allow for the minimum necessary calculations, while the other schemes allow for all calculations.

In this mode, you must sign a contract with a representative agent in order to receive the payments associated with selling power on the market. By default, when self-supply is activated, the representative agent assigned by Red Eléctrica (REE) is the representative of the distributor’s business group, if any. It is very important that you sign this contract prior to activating self-supply so that the representative agent correctly settles the associated production data.

As established in regulations, power control will be carried out in the same way as for a pure consumer, i.e., the calculations associated with self-supply only affect active power, but not other items.

In order to be able to calculate the amount of self-supplied power associated with a consumer, the generation circuit must have at least a measuring device. Therefore, if only head-end or boundary point measuring is available, network consumption and discharge can be calculated, but not other items. In collective self-supply, these concepts can always be calculated, as the generation circuit must have a measuring device.

This is because part of the power generated in the internal network is self-consumed and arrives at the border point, and the measuring device records the excess power or the part that is not self-consumed.

Remember there are two subjects in this mode: the consumer and the producer. In other words, there is one CUPS for the consumer and another for the producer, even in the case of an individual self-supply installation. This implies that the items associated with consumption will be assigned to the consumer CUPS and those associated with the producer will be assigned to the producer CUPS.