PrecioLuzEvery hour, in colour
Green when it's cheap, amber when it climbs, red when it's worth waiting. The full curve of the day, with no table to decipher.
PVPC · Alerts · Widgets
Know when to run the washing machine.
Today's and tomorrow's electricity price, hour by hour, in colours you understand without reading numbers. It tells you when the price turns cheap and puts it on your Home Screen. No account, no ads.
- The price data is always free
- No account, no sign-up
- Mainland, Canary Islands, Balearic Islands, Ceuta and Melilla
See it inside
The whole day, at a glance
The price right now in large type, the hours ordered by colour, widgets on your Home Screen, and a scale you tune to whatever you consider expensive.
What it does
The electricity price, understood at a glance
Tomorrow's price
As soon as Red Eléctrica publishes it, at 8:15 PM. The day's average, how it compares with today, and the cheapest window for your zone.
Alerts when it matters
An alert the moment electricity turns cheap or expensive, per the thresholds you set. The calculation happens on your iPhone.
Widgets in plain sight
The current price on your Home Screen and Lock Screen, so you never have to open anything.
For solar too
Wholesale market (spot) prices and surplus compensation, if you have solar panels.
No account, no ads
It never asks for a sign-up, an email or your location. Your settings stay on your iPhone.
How it works
Set it up once and it works on its own
Pick your zone
Mainland, Canary Islands, Balearic Islands, Ceuta or Melilla. Each one has its own price, and the app uses the one that applies to you.
Set your cheap and your expensive
Choose the price where electricity counts as cheap or expensive. The app and the widgets paint every hour with your scale.
Let it tell you
Every evening, the summary of tomorrow's price. And, if you turn it on, an alert the moment the price crosses your threshold.
Piece by piece
Every figure in its place
Every colour, every arrow and every figure says something specific. Here is what each one says.
The price right now
What electricity costs at this moment, with its colour and the tariff band it belongs to. A high price reads before you read it.
Lowest, average, highest
The day summed up in one line, with the exact hour each one happens.
The cheapest hour
Every hour is a proportional bar. The day’s cheapest and dearest carry an arrow.
Where the power comes from
The full generation mix, technology by technology, with what each one contributes.
Surplus in the negative
If you have solar panels, it flags the hours when exporting to the grid subtracts instead of paying.
How much is renewable
What share of today’s electricity comes from renewables, and the full mix by technology.
Download PrecioLuz free
The hourly price, the day's curve and the evening alert cost nothing. Install it today and you'll know tonight how tomorrow looks.
Free · Optional one-time purchase · Requires iOS 18 or later
FAQ
Frequently asked questions
What is the PVPC?
It's Spain's regulated electricity tariff — Precio Voluntario para el Pequeño Consumidor — and it changes every hour. If you're on the PVPC, it's what you pay for energy in each slot of the day.
Is PrecioLuz free?
Yes. Seeing the hourly price, the day's curve, the price widget and the daily alert with tomorrow's price costs nothing, and will stay free. There is an optional one-time purchase that adds features of our own, such as threshold alerts, a colour scale tuned to you and the rest of the widgets.
When is tomorrow's price known?
Red Eléctrica publishes the next day's prices every evening at 8:15 PM. As soon as they are available, PrecioLuz sends its daily alert with the average, the comparison with today and the cheapest window.
Do I need an account?
No. The app asks for no sign-up, no email and no location, and carries no advertising. Your settings are stored on your own iPhone.
Does it work outside mainland Spain?
Yes. You can choose Mainland, Canary Islands, Balearic Islands, Ceuta or Melilla, and the app uses the price that applies to your zone.
What is the spot price, and how does it differ from the PVPC?
The spot price is the wholesale market price (OMIE): what the energy costs before grid tolls, charges, your supplier's margin and taxes. It isn't what you pay on the PVPC, but it's a useful reference and it's what some indexed tariffs are built on.
Is it useful if I have solar panels?
Yes. Beyond the PVPC you can check the wholesale market price and the surplus compensation, which is what your supplier pays for the energy you feed back into the grid.
Where does the data come from?
From the official sources: Red Eléctrica de España and OMIE for prices, with PVGIS (European Commission) and AEMET for solar and weather data. PrecioLuz is not affiliated with or sponsored by any of them, and the data is shown for informational purposes.
Data sources. Prices from Red Eléctrica de España and OMIE; solar data from PVGIS (European Commission) and weather data from AEMET. PrecioLuz is not affiliated with or sponsored by any of these sources, and shows the data for informational purposes.
Tomorrow you'll know which hour pays off.
Every hour's price, the evening alert and the widget on your Home Screen. No account, no ads, and nothing to keep checking.
Free · Spanish, English and Catalan · iPhone and widgets