Yes. For individuals it is free and unlimited, with no sign-up required. If you create a free account, you can also save your comparisons.
From the offers published by energy suppliers on the official CNMC comparator and on their own websites, reviewed every night. Each tariff shows the price date. Prices may change: always confirm the terms before signing up.
The complete bill: capacity charge, energy consumed, social bonus funding (0.024688 €/day), electricity tax (5.11 %), meter rental, and IVA (or IGIC/IPSI depending on your area).
Contracted power is shown under «Datos del contrato» (in kW). Consumption is under «Información del consumo» or «Detalle de la factura», split into peak, standard, and off-peak if your tariff has time bands. If you only see the total, choose «Total only» and we will split it using an average profile.
These are the three periods of the 2.0TD tariff. On the mainland, on working days: peak from 10–14 h y 18–22 h; standard from 8–10 h, 14–18 h y 22–24 h; and off-peak from 0–8 h, fines de semana y festivos nacionales.
Yes. Each supplier pays a different price for surplus energy, and never more than the energy you purchase in that month. We calculate the compensation for each tariff at its specific rate and, if it includes a virtual battery, we tell you how much credit you have left for future bills.
It is a service offered by some suppliers that stores in euros the surplus that doesn’t fit in your bill, to deduct it from the next ones. It is very useful if you produce more than you use in summer. In the comparator we mark with 🔋 the tariffs that have it and their fee, checked on each company’s website.
Almost never. If it has the CNMC QR code, or if it is a business bill in PDF, we read it in your own browser. Only if that’s not possible do we offer to read it with AI: it is then sent to be read and is not stored.
Yes. Download the hourly consumption CSV from your distributor or from Datadis and upload it to the comparator: we break down your exact consumption into peak, standard, and off-peak, and we also read your surplus if you have solar panels.
Luz is our AI virtual assistant. She helps you with your bill, tariffs, or solar panels, in writing or via voice notes, and replies in your language.
No. The comparison tool doesn't ask for a phone number. We will only contact you if you ask us to via the contact form.
Every plan includes an amount of AI per month: bill reading and Luz in your dashboard, on your website, in your customers’ portal and on your WhatsApp. Your dashboard shows what you use. If you go over, the excess is charged at twice the cost price on a separate invoice.
Yes. With your own brand you connect your agency’s WhatsApp Business: Luz replies on your behalf, reads the bills customers send, tells them how much they can save with your tariffs and passes you their call requests.
Create your agency account and enjoy 14 days with all the features of your plan, no card required. We will contact you before it ends to activate it.
Luz is an AI assistant (Google Gemini) and can make mistakes. Do not share personal details. We do not store the conversation or audio.
