What is the CUPS number on your electricity bill, and why you'll definitely need it

If you've just arrived in Spain and are trying to set up electricity, chances are you've already come across a word that seems to be everywhere: CUPS. It might sound technical, but it's simpler than it looks. And yes, you're going to need it.

In this article, we explain exactly what the CUPS is, where to find it, and why you can't sign up for electricity or switch suppliers without it.

What is the CUPS?

The CUPS (Código Universal de Punto de Suministro, or Universal Supply Point Code) is the unique identifier assigned to every electrical installation in Spain.

Think of it as a passport or an NIE for your property's power supply: it lets energy companies pinpoint exactly which supply point you're talking about.

Every CUPS is made up of letters and numbers that indicate the distribution company, the province and the installation number. For example:

This code doesn't change even if you switch energy suppliers. That's why it makes switching so easy and helps avoid administrative mistakes.

Why the CUPS matters so much

Without the CUPS, energy companies can't process anything related to your supply. You'll need it for:

• Fast, secure sign-up: every supplier needs this code to start your supply, whether it's for a flat or a commercial property, and whether it's your first time setting up power there or not.
• Avoiding and correcting billing errors: it identifies your installation correctly and helps prevent billing problems.
• Hassle-free supplier switching: all you need is your CUPS and the new company handles the switch automatically, with nothing for you to do.

The fact that it never changes when you switch suppliers is exactly what makes changing companies in Spain so quick and easy: the new supplier you choose only needs your CUPS to take care of everything.

Example: taking over a supply (change of account holder)

You move into your new apartment and need to put the electricity in your name. Your landlord or the letting agency gives you the flat's latest bill, which shows the CUPS. You give it to your energy company and, within a few days, the supply is up and running in your name. No technician visits, nothing new to install.

Example: switching suppliers

You find a better rate and decide to switch. You call the new supplier, give them your CUPS, and they take care of everything. No power cuts, no complicated paperwork. The CUPS is the thread that ties it all together.

If you already have an electricity supply, you'll find the CUPS on your bills, usually at the top or next to your contract details. It's a long code, for example:

ES0022687346848041XY

If it's a brand-new installation, your landlord or the distribution company can provide it. It's an essential first step before signing up for any electricity contract.

What you need to sign up for electricity as a foreigner

To sign up for electricity as a foreigner, you'll need:

• A valid ID: your NIE or passport.
• The supply address: the flat or property where you want to activate the electricity.
• The CUPS of the supply (if there is one), or let the company generate a new one.
• Your contact details and a bank account for direct debit payments.

With these documents, the process is quick and straightforward. You can find more information on how to sign up for electricity in Spain as an expat.

CUPS vs. other codes on your electricity bill

Several codes appear on an electricity bill, and it's easy to mix them up. This table clears up the key differences:

In short, the CUPS is permanent and stays with your supply even if you switch companies, while the other codes are temporary.

Keep your supply details under control

• Always keep your CUPS: write it down or save it digitally. You'll need it every time you switch suppliers or manage your contract.
• Check your bill: make sure the CUPS matches your property to avoid billing problems.
• Contact the distribution company: if you have any doubts, they can confirm the correct code and give you any information about your installation.

Frequently asked questions about the CUPS

Below, we answer some of the most common questions so you know exactly how it works and how to use it properly for your electricity supply.

Can I sign up for electricity without a CUPS?

For new installations, the company will generate one for you. However, for an existing supply, you'll need this code to put the electricity in your name or to switch suppliers. Providing it speeds up the process and avoids mistakes.

Does the CUPS change if I install a smart meter or increase my contracted power?

No. The Universal Supply Point Code identifies the installation itself, not the type of meter or the contracted power. This means you can upgrade your supply or install new technology without changing your code.

What do I do if I can't find my supply code?

If you don't have access to your previous bill or the CUPS for your home or premises, you can request it from the relevant electricity distribution company or from the property owner. It's a necessary step for any procedure related to electricity.

Does one CUPS cover more than one property?

No. Every electrical installation has its own supply code, even if the properties are in the same building. This ensures each supply is managed independently and prevents billing errors.

The CUPS is essential for any electricity supply in Spain. It lets you sign up for power, switch suppliers and manage your consumption efficiently, avoiding errors along the way. Keeping it to hand saves you time, mistakes and unnecessary phone calls every time you deal with your supply.

At Nordy, we know that arriving in a new country and facing energy contracts can feel overwhelming. That's why we offer personalised support in English, Swedish, Norwegian and Spanish, with no small print and real help when you need it. If you want to sign up for electricity as a foreigner, our team will guide you through the whole process.