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What is a CUPS number and why it matters

Every electricity supply point in Spain has a CUPS number.

It is one of the most important details on your electricity bill, yet most people do not know what it is or why it matters.

Understanding your CUPS number helps you switch suppliers smoothly and avoid unnecessary delays.

What does CUPS mean

CUPS stands for Código Universal de Punto de Suministro.

It is a unique identifier assigned to your electricity supply point, not to you as a customer.

Think of it as an ID number for your property’s electricity connection.

What a CUPS number is used for

The CUPS number allows electricity suppliers to:

  • Identify your exact supply point
  • Access technical details about your connection
  • Process a supplier change correctly
  • Avoid errors when switching tariffs

It stays the same even if you change electricity companies.

Where to find your CUPS number

You can usually find your CUPS number:

  • Near the top of your electricity bill
  • In the contract details section
  • Labelled clearly as “CUPS” followed by letters and numbers

It often starts with “ES”.

Is it safe to share your CUPS number

Yes. Sharing your CUPS number is normal and required to switch suppliers.

It does not give access to your bank details or allow changes without your approval.

What happens if your CUPS number is wrong

If the CUPS number is incorrect or missing, switching can be delayed or rejected.

That is why uploading your electricity bill is the easiest way to ensure the correct information is used.

Verify your CUPS number automatically

Upload your electricity bill on our homepage and we will locate and verify your CUPS number for you.

Upload your electricity bill

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Frequently Asked Questions

Endres CUPS-nummeret mitt noen gang?

Nei. CUPS-nummeret er knyttet til det fysiske forsyningspunktet på eiendommen din, ikke kontrakten. Det forblir det samme selv om du bytter strømselskap eller flytter (det nye huset vil ha et annet CUPS).

Kan to eiendommer dele samme CUPS-nummer?

Nei. Hver strømtilkobling må ha sitt eget unike CUPS-nummer.

Kan jeg bytte strømleverandør uten å kjenne mitt CUPS-nummer?

Det er veldig vanskelig. Leverandører trenger CUPS for å identifisere nøyaktig hvilken måler de skal bytte. Hvis du ikke vet det, kan de ikke behandle forespørselen sikkert.

Er mitt CUPS-nummer det samme som mitt målernummer?

Nei. Målernummeret står fysisk på enheten, mens CUPS er den administrative ID-en for nettilkoblingspunktet. De er forskjellige koder.