What is the Indexed Electricity Tariff?

The indexed energy or electricity tariff in Spain is a type of contract in which the price of electricity varies according to the prices of the wholesale energy market (electricity pool). Unlike a fixed tariff, where the cost per kWh is constant, in the indexed tariff the user pays the actual price at which electricity is purchased at any given moment. This means that prices can change every hour and are influenced by factors such as supply, demand and generation costs. The following graph shows the annual evolution and trend of Indexed energy prices for Tariffs 2.0TD from 2023 and 2024 to date.

Monthly Index Energy Price /kWh

Saturday, 29 de November de 2025

Average price for the day: 0.17084 €/kWh

Lowest price: 0.11913 €/kWh (entre las 14:00)

Highest price: 0.27629 €/kWh (entre las 20:00)

MorningAfternoonNight
08:000.20742 €/kWh
09:000.16384 €/kWh
10:000.204 €/kWh
11:000.19495 €/kWh
12:000.19421 €/kWh
13:000.18674 €/kWh
14:000.11913 €/kWh
15:000.12525 €/kWh
16:000.13817 €/kWh
17:000.16593 €/kWh
18:000.25067 €/kWh
19:000.26083 €/kWh
20:000.27629 €/kWh
21:000.25331 €/kWh
22:000.16725 €/kWh
23:000.15669 €/kWh
00:000.12339 €/kWh
01:000.12041 €/kWh
02:000.12536 €/kWh
03:000.12067 €/kWh
04:000.1204 €/kWh
05:000.12268 €/kWh
06:000.12771 €/kWh
07:000.17488 €/kWh
Morning
Hora: 08:00
Precio: 0.20742 €/kWh
Hora: 09:00
Precio: 0.16384 €/kWh
Hora: 10:00
Precio: 0.204 €/kWh
Hora: 11:00
Precio: 0.19495 €/kWh
Hora: 12:00
Precio: 0.19421 €/kWh
Hora: 13:00
Precio: 0.18674 €/kWh
Hora: 14:00
Precio: 0.11913 €/kWh
Hora: 15:00
Precio: 0.12525 €/kWh
Afternoon
Hora: 16:00
Precio: 0.13817 €/kWh
Hora: 17:00
Precio: 0.16593 €/kWh
Hora: 18:00
Precio: 0.25067 €/kWh
Hora: 19:00
Precio: 0.26083 €/kWh
Hora: 20:00
Precio: 0.27629 €/kWh
Hora: 21:00
Precio: 0.25331 €/kWh
Hora: 22:00
Precio: 0.16725 €/kWh
Hora: 23:00
Precio: 0.15669 €/kWh
Night
Hora: 00:00
Precio: 0.12339 €/kWh
Hora: 01:00
Precio: 0.12041 €/kWh
Hora: 02:00
Precio: 0.12536 €/kWh
Hora: 03:00
Precio: 0.12067 €/kWh
Hora: 04:00
Precio: 0.1204 €/kWh
Hora: 05:00
Precio: 0.12268 €/kWh
Hora: 06:00
Precio: 0.12771 €/kWh
Hora: 07:00
Precio: 0.17488 €/kWh

The price of electricity, month by month

From January 2024 to noviembre 2025

  • Average price for the year: 0.1312 €/kWh
  • Lowest price of the year: 0.01954 €/kWh
    El 2024-09-07
  • Highest price of the year: 0.42315 €/kWh
    El 2025-01-01

What are energy tolls and how do they work?

In an Indexed energy tariff, the price the user pays includes several components, including the cost of electricity in the wholesale market and access tolls. The tolls, in force since June 2021, are regulated tariffs established by the government to cover the costs of transporting and distributing electricity, and affect all energy contracts, both indexed and fixed-rate. In the case of an indexed tariff, these tolls are also subject to the hourly variations established by the regulated tariff system (such as the PVPC, Voluntary Price for the Small Consumer). This means that the total cost of electricity reflects not only the fluctuations of the wholesale market, but also the changes in tolls according to time slots. The relationship between the indexed tariff and the tolls is therefore direct: the tolls are a component that is applied to the final price paid by the consumer and, as they are also variable by hours, they enhance the advantage of consuming at more economical and less demanded hours.

Super Off-Peak: Cheapest price

Monday to Friday with a night schedule from 00:00 to 08:00. Saturdays, Sundays and National Holidays all day long.

Off-peak: Moderate price

Monday to Friday (except holidays) with a schedule from 08:00 to 10:00 in the morning, from 14:00 to 18:00 in the afternoon and from 22:00 to 00:00 in the evening.

Peak: Most expensive price

Monday to Friday (except holidays) from 10:00 to 14:00 in the morning and from 18:00 to 22:00 in the afternoon.

When is it advisable to consume your energy if you do not have a fixed price?

If you have an indexed tariff contract, it will be convenient for you to adapt your consumption to the most economically priced tolls, and you can maximize your savings by consuming during daylight hours, when renewable generation is higher and, therefore, the cost of energy on the wholesale market is lower. A good example of savings would be to carry out the most energy-demanding consumptions, such as laundry, on weekends between 11 am and 6 pm.

The attached image above is a reference of the hours of sunlight in which it is convenient to consume energy to maximize savings in the case of indexed and fixed-rate contracts per period. It may vary depending on the region and time of the year.

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