Expert Energy Guides · Spain

Energy Guides & Advice

Everything you need to know about electricity bills, switching providers, and saving energy in Spain.

35+ Guides

7 Topics

Updated Weekly

Topics:Electricity Bills Spanish Energy Tariffs Switching Suppliers Solar Electricity Faults & Problems Saving Money Market & Prices

Electricity Bills

Learn how to read and understand your Spanish electricity bill, including fixed charges and taxes.

Jan 15, 2023

Spanish Electricity Bill Explained

A plain-English guide to reading a Spanish electricity bill, from potencia and kWh charges to taxes and distributor details.

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Feb 10, 2023

What Is a CUPS Number in Spain?

Learn what a CUPS number is, where to find it on a Spanish electricity bill, and why you need it to switch supplier.

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Mar 5, 2023

How to read your electricity usage graph

Understanding your electricity usage graph is key to saving money. Learn how to spot patterns and seasonal changes that affect your bill.

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Mar 5, 2024

Am I Paying Too Much for Electricity in Spain? | WeSwitchSpain

Many households in Spain overpay for electricity without realising. Check for common signs and learn why your bill might be higher than necessary.

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NewMar 21, 2026

Electrical Certificate (CIE) in Spain: What It Is and How to Get It

The Electrical Installation Certificate (CIE or boletín eléctrico) is required when you need to connect power, upgrade potencia, or install solar. Learn what it is, when you need one, and how to get it.

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NewMar 21, 2026

When Do You Need an Electrical Certificate (CIE) in Spain?

Find out when you need a CIE (boletín eléctrico) in Spain — from new connections and power upgrades to property sales and solar installations.

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NewMar 21, 2026

How to Get an Electrical Certificate (CIE) in Spain

Step-by-step guide to obtaining your CIE (boletín eléctrico) in Spain: finding an authorised electrician, what the inspection involves, costs, and timelines.

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NewMar 21, 2026

Increase Potencia with an Electrical Certificate

Learn when you need an electrical certificate to increase potencia in Spain and how to avoid delays with the distributor.

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NewMar 21, 2026

Certified Electricians for CIE in Spain

Find out when you need a certified electrician for a CIE in Spain and what to expect from the process and paperwork.

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Spanish Energy Tariffs

Compare different types of electricity tariffs in Spain, from flat rates to time-of-use (indexed) plans.

Apr 20, 2024

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Personalised for You

Ready to Lower Your Energy Bills?

Most expats in Spain are overpaying on their electricity. Upload your bill and see how much you could save.

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Switching Suppliers

A step-by-step guide to changing your energy provider in Spain safely and easily.

Apr 20, 2023

Switch Electricity in Spain | English Help for Expats

We help expats in Spain understand their electricity bills, compare tariffs, and switch supplier with clear support in English.

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May 15, 2023

Electricity bill help and switching in Málaga | WeSwitchSpain

Living in Málaga? Understand how local climate and lifestyle affect your electricity bill. We help you find the best tariff for your home.

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Jun 10, 2023

Electricity bill help on the Costa del Sol | WeSwitchSpain

Home on the Costa del Sol? Optimise your electricity bill for seasonal usage, holiday rentals, and high summer consumption. We help you find the right tariff.

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Jul 5, 2023

Electricity bill help and switching in Andalucía | WeSwitchSpain

Living in Andalucía? Take advantage of high solar hours and optimise your electricity bill. We help you find the best tariff for your lifestyle.

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Solar Electricity

Everything you need to know about solar panels, export credits, and virtual batteries in Spain.

Aug 20, 2023

What Is Octopus Sun Club in Spain?

Learn how Octopus Sun Club works in Spain, who benefits most, and whether it can lower costs for solar households.

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Oct 10, 2023

How to Save Money with Octopus Sun Club

Learn how to save money with Octopus Sun Club using simple timing shifts. No lifestyle changes needed, just smarter energy usage.

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Nov 5, 2023

How to save money by using electricity during solar hours

Electricity savings do not always come from using less power. In many Spanish homes, savings come from using electricity at better times.

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Mar 14, 2026

Best Tariff for Solar Owners in Spain in 2026 | Feed-In, Battery or Lower Import Rates?

Are solar tariffs in Spain really worth it? Honest guide to feed-in rates, Octopus Solar, batteries, self-consumption and lower real bills.

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NewMar 21, 2026

Electrical Certificate (CIE) for Solar in Spain

Every grid-connected solar installation in Spain requires a CIE. Learn what the solar CIE covers, how RAIPRE registration works, and how WeSwitch can help.

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NewApr 5, 2026

Plug-In Solar in Spain: Is Balcony Solar Worth It?

See how plug-in solar works in Spain, what the rules look like, and whether a balcony system can meaningfully cut your bill.

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Faults & Problems

Troubleshoot common issues like power cuts, low voltage, and supply faults.

Mar 4, 2026

How to Report an Electricity Fault in Spain

Step-by-step guide on what to do during a power cut, how to check your meter, and who to call for electricity emergencies in Spain.

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NewMar 25, 2026

Low Voltage Problems in Rural Spain

Learn why low voltage happens in rural Spain, how it affects appliances and solar, and what you can do about it.

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Emergency Support

Power Cut or Low Voltage Problem?

Don't get left in the dark. Find the emergency contact for your distributor and learn how to report a fault properly.

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Saving Money

Practical tips and strategies to reduce your energy consumption and lower your monthly bills.

Sep 15, 2023

Best Time to Use Electricity in Spain | WeSwitchSpain

The best time to use electricity in Spain is during sunny hours. Learn why daytime electricity is cheaper and how to shift your usage.

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Dec 1, 2023

Running appliances during solar hours to save electricity

Running appliances during solar hours to significantly reduce the cost of your electricity bill.

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Jan 15, 2024

How much electricity a pool pump uses and how to reduce the cost

Pool pumps are one of the biggest users of electricity in Spanish homes. Learn how to save money by timing your pump correctly.

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Feb 10, 2024

How to shift electricity usage without changing your lifestyle

Saving money on electricity doesn't mean changing your lifestyle. Learn how small shifts in timing can lead to big savings.

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Mar 7, 2026

Electric Water Heater Savings Guide Spain | Run at Night & Save

Learn how to reduce your Spanish electricity bill by over €200/year using a timer for your electric water heater during cheaper night hours.

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Market & Prices

Stay updated on the Spanish energy market, wholesale prices, and how global events affect your bill.

Mar 4, 2026

Electricity Prices in Spain Explained (kWh Costs & Tariffs)

Learn how electricity prices work in Spain including cost per kWh, time-of-use tariffs (P1 P2 P3) and why prices change daily.

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May 15, 2024

How Electricity Prices Work in Spain

Understand the factors that influence electricity prices in Spain, from wholesale markets to renewable energy availability, and why bills fluctuate.

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Jun 10, 2024

Spain vs EU: Renewable Energy Generation (1990–Latest)

Watch how renewable electricity generation has grown across the EU-27 since the 1960s with our interactive data visualisation.

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Mar 3, 2026

How the Iran Conflict Could Affect Spain Energy Prices

Understand how Middle East tensions can affect oil, gas, and electricity prices in Spain, and what expats should watch.

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Mar 7, 2026

Why Electricity Prices Are Rising in Spain (March 2026)

See what is pushing Spanish electricity prices higher in March 2026 and what it means for households, expats, and solar owners.

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Mar 13, 2026

Endesa Data Breach & Cyberattack: What Happened

A clear guide to the Endesa data breach, what customer data may be at risk, and the practical steps to protect your account.

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Mar 13, 2026

How to Protect Your Energy Account in Spain

Learn how to secure your energy account in Spain, spot fraud risks, and switch supplier safely without exposing your details.

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NewMar 20, 2026

Bottled Gas in Spain: Butane, Propane & Prices

Understanding the regulated Repsol bombona, how butano and propano prices are set in Spain, when they change, and how CEPSA and other unregulated providers compare.

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Latest Guides

GuideNewApr 5, 2026

Plug-In Solar in Spain: Is Balcony Solar Worth It?

See how plug-in solar works in Spain, what the rules look like, and whether a balcony system can meaningfully cut your bill.

Read Guide

GuideNewMar 25, 2026

Low Voltage Problems in Rural Spain

Learn why low voltage happens in rural Spain, how it affects appliances and solar, and what you can do about it.

Read Guide

GuideNewMar 21, 2026

Electrical Certificate (CIE) in Spain: What It Is and How to Get It

Read Guide

GuideNewMar 21, 2026

When Do You Need an Electrical Certificate (CIE) in Spain?

Find out when you need a CIE (boletín eléctrico) in Spain — from new connections and power upgrades to property sales and solar installations.

Read Guide

GuideNewMar 21, 2026

How to Get an Electrical Certificate (CIE) in Spain

Step-by-step guide to obtaining your CIE (boletín eléctrico) in Spain: finding an authorised electrician, what the inspection involves, costs, and timelines.

Read Guide

GuideNewMar 21, 2026

Electrical Certificate (CIE) for Solar in Spain

Every grid-connected solar installation in Spain requires a CIE. Learn what the solar CIE covers, how RAIPRE registration works, and how WeSwitch can help.

Read Guide

Related Tools & Calculators

Put your knowledge into action with our interactive tools designed to help you save on energy in Spain.

Energy Guides & Advice

Electricity Bills

Spanish Energy Tariffs

Ready to Lower Your Energy Bills?

Switching Suppliers

Solar Electricity

Faults & Problems

Power Cut or Low Voltage Problem?

Saving Money

Market & Prices

New to Spain? Start Here

Latest Guides

Related Tools & Calculators

Bill Comparison

Potencia Checker

Solar Battery Tool

Electricity Bills

Spanish Energy Tariffs

Ready to Lower Your Energy Bills?

Switching Suppliers

Solar Electricity

Faults & Problems

Power Cut or Low Voltage Problem?

Saving Money

Market & Prices