Open each menu to see its explanation

  • Miniatura del anverso de factura de electricidad
  • Miniatura del reverso de factura de electricidad

Anverso factura

Anverso de factura de electricidad Reverso de factura de electricidad
  • Top left corner: name of the Iberdrola Group Company that issues the bill.

    Top right corner: reference to the type of bill (electricity, gas, etc.).


    Billing period:the beginning and end of the period in which the electricity on this bill was consumed.
    Start date: this day's consumption is not included in this bill because it was already included in the previous bill.
    End date: this day?s consumption is included in the bill.

    Scheduled charge date/final date for payment: : if your contract is paid by direct debit or you have a Flat Rate, this is the day it is charged/credited to your bank account.
    If it is not paid by direct debit, this is the deadline for making payment in the agreed banks, on our website or by telephone.

    Bill with actual reading: the consumption on your meter has been read.

    Bill with estimated reading: your meter could not be read due to communication problems in the network or other specific problems of your meter, so the electricity distribution company in your area has estimated a reading based on your consumption record.

    Bill without reading: your meter could not be read and your consumption has not been estimated. The consumption for this period will be included in subsequent bills.

    Contract reference: the number that identifies your contract and which you must use in any dealings with us.

    It is important that you verify that the address for correspondence, where you have told us that you want to receive communications, is correct. It is not always the same address as that of the supply point.

    Energy: This includes all items related to energy (power, consumption, taxes, etc.). The full details are given on the back.

    Services and other items: this covers all items of your bill not related to energy (rental of metering equipment, other contracted products or services, etc.). The full details are given on the back.

    This graph shows the evolution of your electricity consumption (kWh) over the last 14 months. This enables you to compare the consumption of the current period with the consumption in the same period of the previous year. The black line marks the average consumption for your contract. When the consumption is estimated, the bar in the graph appears broken.


    Issued by: Iberdrola Group company that issues the bill.

    Bar code: reference for automated document processing by Iberdrola.

    Name and address for correspondence and supply: mailing details for sending the bill. These may differ from the contract holder name and supply address, which is shown below this mailing address.

  • Here we provide you with a summary of the energy, subscribed services and corresponding VAT.

    You can check your “Consumption” in a graph shown on the right. It displays electricity consumption in kWh for the last 14 months. Thus, in addition to seeing how your consumption has developed, you will be able to compare your consumption over the most recent period against the same period the previous year. The highlighted horizontal line marks the average consumption for your contract. When consumption is estimated, the corresponding graphic bar will be displayed with stripes.

    We also provide you with data on your average daily consumption for the billing period and for the past 14 months (euros), along with your accumulated consumption for the past year (kWh).

  • We help you understand your bill: includes important information on your bill. For example, if your bill is Fixed Rate, we remind you that you have contracted the Fixed Rate service and what it entails. We will also use this section to notify you when relevant events affecting your bill occur, such as, for example, a change in energy prices or services.

    Quality seals:

    • AENOR: Iberdrola quality management system certification seal granted by AENOR (Spanish Association for Standardisation and Certification), a private, non-profit organisation. This certification shows that the Quality System adopted by Iberdrola complies with the requirements set out in UNE-EN ISO 9001 Standard.

    • CONSUMER ARBITRATION: IBERDROLA COMERCIALIZACI�N DE �LTIMO RECURSO, S.A.U. and IBERDROLA CLIENTES, S.A.U. are members of the Consumer Arbitration System for conflict resolution. If you lodge a complaint and fail to receive a satisfactory response within 30 days, you can send it to the corresponding Arbitration Board for those cases where Iberdrola has submitted to such arbitration. More information in the Complaints section..

    • PEFC: certifies that the paper used for the bills comes from sustainably managed forests and controlled sources.

Open each menu to see its explanation

  • Miniatura del anverso de factura de electricidad
  • Miniatura del reverso de factura de electricidad

Reverso factura

Anverso de factura de electricidad Reverso de factura de electricidad
  • Meter number: a unique number that identifies your meter. Each meter has a different code.

    Distribution company: the electricity contracted with Iberdrola Clientes is transmitted through the network of the distribution company for your area to the supply point. This company ensures the good state of the installations, connects the supplies to the network and installs and takes the readings from your meter.

    Access contract number: a unique number that identifies your contract with the distribution company in case you need to deal directly with it.

    Supply point identification (CUPS): Unique Supply Point Code, a number that identifies your supply point with any distribution or marketing company. It's like a national ID number for supply.

    Power: this is the maximum amount of energy that can be consumed at a specific time, and it is what allows you to use a set number of household appliances at the same time. It is measured in Kilowatts (kW), and when contracting, its value is set for each hourly period. If your contract does not have a maximeter and you exceed that maximum capacity, the supply will be temporarily cut off. If your contract has a maximeter, the supply will not be cut off, but we will bill you a penalty for exceeding the maximum capacity, as stated in the contract.

    Network access toll (ATR): this corresponds to the use made by electricity generating companies and consumers of the distributor's networks. The applicable prices are set by Ministerial Order. In this section we show the toll that corresponds to your supply point. The access toll varies according to the power you have contracted.

    Access toll prices: in this section we indicate in which Official State Gazette the current access tariff prices are given.

    Duration of contract until: this is the expiry date of your contract. Unless you state otherwise, your contract will be automatically extended. In the event of any price changes in the renewal (because the offer you have now is not in force), we will notify you at least 15 days in advance.


    In the Energy section we can have:

    Billed power: is the amount you pay to receive the kilowatts (kW) contracted in your supply, regardless of what you have consumed. It is calculated by multiplying the contracted power by the days of the billing period and by the price of the power term.

    Billed energy: this is the electrical consumption generated during the billing period, and is measured in kilowatt hours (kWh). Depending on the chosen tariff, you may have a single price for the entire period, or different prices depending on peak/off-peak or at promoted/non-promoted hours. You can see how it has been calculated in the "consumption" section.

    Reactive energy: reactive energy is only billed in certain types of contracts, since this energy is generated by some electrical devices that use coils, such as industrial machinery, lifts, pumps, fluorescent lights, etc. It is measured in reactive kilo volt-ampere hour (kVArh) and is only included on the bill if:
    Tariffs 2.0 A and 2.1 A: the reactive energy exceeds 50% of the active energy consumption
    Tariffs 3.0 A, 3.1 A and 6.x: the reactive energy exceeds 33% of the active energy. It does not apply in the Off-peak period (P3 of tariff 3.X and P6 of 6.X).

    Electricity tax: this is a special tax on electricity. According to Special Tax Law 38/1992, it is calculated as follows: Electricity tax = 5.1127% x (Billed consumption + Billed power).
    Sometimes more than one line may appear in the billing on the same item. This can happen for two reasons:

    • When there has been a change in the prices to be applied in a single billing period
    • When different time periods are contracted.


    Within this section we might have:

    Metering equipment rental: the measuring equipment or meter is the device used to measure the energy consumption. It is normally owned by the electricity distribution company in your area and customers have it on a rental basis, so this item will be billed every month by multiplying the number of days in the billing period by the meter rental price, unless the meter is owned by the customer, in which case it is not billed. Its price is established by Law.

    Other services: In this section, we will also bill any product or service that you have contracted, such as the Electric Emergency Service, the Household Electric Protection Insurance, or any other item that is not directly related to energy.

    The current and previous meter readings are detailed here, as well as the dates on which they were taken. By subtracting the previous reading from the present reading, we arrive at the consumption (kWh) on your bill. We also give the source of the reading (real or estimated).
    If you have several contracted periods, we will show you the reading for each period, and if you have a maximeter, we will show you the maximum power for each period.

    Only part of the amount of your bill is used to cover the costs of electricity supply. The rest corresponds to a series of taxes and other regulated costs established in current regulations. You can see the breakdown in this graph. Click here if you want to know what each of the items is.

    In this space, as on the front, we include useful messages about the amount of your bill or some specific item. You should always read it.

    It is a legal requirement to include this information on the bill for customers to know the mix of generation technologies used by Iberdrola Clientes, and their environmental impact

    This section will give you some useful tips on how to consume less energy, thus saving on your bill and protecting the environment.

  • Detailed information on the amount of your bill in euros intended for paying taxes and surcharges established by current legislation and the amount intended for the production and supply of electric power and for distribution grids.

    Destination of the money you pay on your bill

  • Information on the various channels for lodging a complaint.

  • Information on the various ways of contacting Iberdrola.

And in case you have any doubt, we clarify the questions that usually arise to our customers: