Receiving your first electricity bill in Spain can be confusing. When you open it, you’ll likely find a document full of terms and numbers that aren’t always clearly explained, leaving you wondering if you are paying the correct amount.
If you have just set up your electricity supply for the first time or are used to an energy system outside Spain, it’s completely normal to ask yourself how to read your bill and what each line item actually means. In this sense, it is helpful to know the requirements and steps for signing up for electricity as an expat, especially if you have just moved to the country.
Let’s go through each section of your bill step by step so that, starting today, you know exactly what you are paying for and why.
What information you will find on an electricity bill
Although the layout may vary slightly depending on the energy supplier, all bills include the same main sections:
Knowing each of these elements will help you accurately interpret any bill.
The first section identifies your contract and your supply point. It is important to review it to make sure all details are accurate.
This section is essential for any query or customer service request.
The power capacity charge is a fixed cost you pay for having access to electricity, regardless of how much energy you actually use. It is calculated based on your contracted power rating in kilowatts (kW).
Practical example: In a small apartment with moderate consumption, a lower capacity will meet your daily needs without wasting money. In a larger home with many appliances, helps you avoid paying for more capacity than you actually need.
This block reflects the energy you have actually consumed and may vary depending on your chosen tariff.
This is one of the main components of your electricity bill.
Your consumption can be calculated in two ways:
If your bill includes an estimated reading, any difference will be automatically adjusted in your next statement.
Besides consumption and power capacity, your bill includes government-regulated costs that are standard across all energy providers in Spain:
These charges do not depend on your energy supplier; they are set by national law and published in the Official State Gazette (BOE). They are supervised by the CNMC (Comisión Nacional de los Mercados y la Competencia) and the Ministry for the Ecological Transition. These charges are reviewed periodically to support the operation and maintenance of the electricity grid and to fund the national energy system. Because they are set by law, they apply equally to all energy suppliers in Spain.
Some bills include a breakdown chart showing how the total amount you pay is distributed.
This breakdown gives you clear visibility into where your money goes.
To make things easy to understand, a typical bill includes:
At Nordy, our bills are designed to be simple and transparent, with all charges clearly broken down and no hidden fees or unnecessary extra services.
Knowing how to read your electricity bill does more than just prevent surprises: it empowers you to check charges, optimize your power capacity, and better manage your overall usage.
At Nordy, in addition to providing fair and transparent rates, we guide you through the entire onboarding process:
Understanding your electricity bill makes it easier to manage your energy use and avoid unnecessary costs. If you're already a Nordy customer, we hope this guide helps you make the most of your service. If you're thinking about switching, explore our 100% renewable electricity plans and see how we can help you manage your energy with confidence.
The total amount includes several components: the cost of your contracted power capacity, the energy consumed, any requested additional services, regulated taxes, and the meter rental fee. All of these are summarized into a single final payment amount.
Active energy is the electricity you actually consume in your daily life (lighting, appliances, electronics, etc.). Reactive energy is generated by certain types of electrical equipment, such as motors and transformers. It rarely affects residential customers and is mainly relevant for commercial or industrial installations.
It is measured by your digital meter and expressed in kilowatt-hours (kWh). On time-of-use plans, your consumption is divided into distinct periods (peak, flat, and off-peak), each billed at its respective unit price.
In addition to actual consumption, every bill in Spain must include government-regulated costs, such as grid transmission tolls, system maintenance charges, meter rental, and taxes. These amounts are mandatory by law and do not depend on your chosen supplier.
You can view a detailed, hour-by-hour analysis of your consumption by logging into the customer portal of your regional distributor (distribuidora). This information helps you analyze your daily routines within the billed period.
Your bill may include a breakdown detailing the origin of your energy. This shows the percentage of electricity generated from renewable sources (solar, wind, hydro) compared to conventional sources. Knowing the origin helps you understand your environmental impact and choose more sustainable plans, such as the 100% renewable energy tariffs offered by Nordy.