Your electricity use.
A tariff that fits.
Upload your bill and we’ll do the hard work: review your usage, compare suitable tariffs from our live database and explain what you could save.
Free analysis. We compare the options and explain the results.
Your history tells us what you used. Your bill tells us what you’re charged.
Your available SIPS history
Consumption across recorded dates and tariff periods, plus recorded maximum demand. It does not establish what you paid.
Your current bill
Your energy rates, contracted power charges, relevant discounts and additional services. One month’s consumption may not represent the year.
Your like-for-like comparison
We apply the same usage basis to your current tariff and suitable alternatives from our database. Any optional power reduction is considered separately.
A bill’s QR code can also contain annual P1/P2/P3 consumption. What matters is the information available, not the number of documents.
The baseline prices your annual usage at current tariff rates. It does not necessarily reconstruct what you paid last year. Future usage and variable prices can change.
CNMC · QROne profile. Real tariffs. A comparison you can follow.
Both example households use 4,800 kWh a year, but at different times. Compare three selected database tariffs here. Your personal analysis considers the suitable options in our wider database.
1. Choose the example household
Reading current tariff records…
Energy and power subtotals use stored rates on the site’s pre-tax basis. They exclude taxes, meter rental, bonuses, discounts, exit/change charges and solar credits. This demo supports only the three named fixed-price products with zero stored recurring fees. It is not a complete bill quote.
You upload the bill. We take it from there.
We review your current charges and available usage history, compare suitable tariffs from our live database, and explain your potential savings—including any optional power reduction.
Upload your bill and check your savingsCould you also save on contracted power?
We assess recorded maximum demand against your contracted power in the two domestic power periods. A proposed reduction includes headroom and is optional. Future appliances and simultaneous use matter; no setting can be guaranteed never to trip.
Why your smart meter does not always trip immediately →Official sources
SIPS identifies the supply-point information system; CUPS identifies the supply point. Domestic energy has three periods, while contracted power has two.
Daily price checks, followed by human review
Our script checks the supplier tariffs we monitor every day and emails detected changes. We double-check the proposed prices before accepting them into the comparison database.
Has something changed at home?
An EV, solar panels, new occupants or seasonal use can change which tariff fits. We check whether the history still represents your household and explain any estimates needed for incomplete data.
How weSwitch is paid
Your analysis is free. Some suppliers pay us a referral or partner commission when you switch through us. The comparison can include tariffs where we earn nothing. The cheapest tariff and any different recommendation should be explained separately.
Learn more
What is the best way to compare electricity tariffs in Spain?
The best way to compare electricity tariffs in Spain is to use your real bill data, annual usage history, contracted power, time-of-use consumption, hidden service charges, taxes, and tariff type. A reliable comparison should also check whether your recent usage has changed because of solar panels, EV charging, occupancy changes, heating, air conditioning, or seasonal living.
Is weSwitchSpain a good electricity comparison site for Spain?
weSwitchSpain is built specifically for the Spanish electricity market. It compares tariffs using bill scanning, official SIPS usage data where available, contracted power checks, hidden-charge detection, and real usage profile analysis. This gives customers a more complete comparison than simply ranking tariffs by the lowest advertised kWh price.
Do you need more than one electricity bill?
A recent bill is enough to start. Where available, we can also use official SIPS usage data linked to your CUPS number to review your real consumption history.
What happens if my usage has recently changed?
If we detect that your recent usage is significantly higher or lower than expected, we ask you to confirm what changed and choose the month from which your new usage pattern began.
Will my electricity supply be interrupted if I switch?
No. Switching supplier does not require an engineer visit and does not interrupt your electricity supply. The distributor remains the same. Only the company that bills you and the tariff change.
Is the service really free?
Yes. The analysis is free for customers. In some cases, suppliers pay us a referral or partner commission if you switch through us.
You upload the bill. We take it from there.
Free analysis. We compare the options and explain the results.
Upload your bill and check your savings