How to Choose Your Electricity and Gas Provider in Barcelona: A Practical Comparison

If you’re moving to Barcelona—or anywhere in Spain—one of the first things you’ll need to sort out is your electricity and gas provider. Not all companies offer the same prices, terms, sustainability options, or customer service. This guide compares the main providers available in Barcelona so you can confidently choose the best option for your new home.

1. What You Should Know Before Signing Up

When comparing providers in Spain, it’s helpful to understand:

• Whether the tariff is regulated (government-set) or from the free market — this affects price stability.

• What type of supply you need: only electricity, electricity + gas, renewable options, or additional services like maintenance.

• Contract flexibility: cancellation conditions, contract length, customer service quality, and clarity of billing.

• Whether sustainability and green energy matter to you.

In Barcelona, you can freely choose your commercializadora (the company that bills you), while the distributor is pre-assigned based on your location.

2. Main Energy and Gas Providers in Barcelona

Below are some of the most relevant companies operating in the city, along with their typical strengths:

Endesa / Energía XXI

• One of Spain’s largest providers; offers electricity and gas in both the free market and the regulated market through Energía XXI.

• Strong infrastructure and brand reliability.

• Offers a wide range of additional services (maintenance, gas packages, etc.).

Iberdrola / Curenergía

• Another major provider offering electricity and gas; regulated tariffs are managed by Curenergía.

• Known for competitive service combinations, especially if you need electricity plus technical add-ons.

Naturgy

• Historically strong in Barcelona, especially for gas.

• An excellent option for homes that rely on natural gas for heating or hot water.

• Offers both free-market and regulated tariffs.

Holaluz

• A Barcelona-based company focusing on 100% renewable electricity.

• Ideal for customers who prioritise sustainability, transparency, and a modern service approach.

Nexus Energía

• An independent provider offering electricity and gas, with a notable focus on renewable energy when possible.

• A good choice for those wanting to avoid the major providers and seek alternative, competitive options.

3. Which Provider Fits Each Type of Customer?

Customer Profile / Needs	Recommended Companies
Looking for stability, reliability, and well-established brands	Endesa / Energía XXI, Iberdrola / Curenergía, Naturgy
Want electricity + gas + maintenance services	Naturgy, Endesa, Iberdrola
Prioritise sustainability / renewable energy	Holaluz, Nexus Energía
Prefer independent providers or competitive alternatives	Nexus Energía, Holaluz
Prefer simple, transparent contracts without complex offers	Regulated providers (Energía XXI, Curenergía)

4. Practical Tips When Contracting Energy in Barcelona

• Request an annual cost estimate tailored to your expected consumption to compare providers fairly.

• If you value sustainability, check the certified renewable percentage of each provider.

• Review contract conditions: length, cancellation fees, and tariff change policies.

• Pay attention to customer service options: availability, language support, and billing transparency—especially important if you’re new to the country.

• Confirm whether your home needs gas, electricity, or both; some companies are stronger in one area than the other.

Conclusion: There’s No Universal “Best” Provider

The best company depends entirely on your household’s needs.In Barcelona, if you prefer stability and a well-known provider, Endesa, Iberdrola, or Naturgy may be the safest choices. For greener or more modern alternatives, Holaluz or Nexus Energía may be more suitable.

At Mikmak Relocation, we recommend making a personalised comparison based on your home size, expected consumption, need for gas or electricity, interest in renewable energy, and flexibility requirements. There are many other interesting options also taking into consideration if you already have assigned to you LARGE FAMILY status. Contact us to guide you through.