Best Virtual Battery Tariffs in Spain 2026

The virtual battery (or 'solar wallet') has revolutionized solar in Spain. It allows you to save the monetary value of your surplus solar generation to reduce your electricity bill to €0, or even apply credits to a second home.

Unbiased Solar Wallet Comparison

Not all virtual batteries are the same. Some charge a monthly fee, some have a cap on savings, and others require you to use their specific hardware.

WeSwitchSpain compares these specialized solar products to find the best fit for your installation size and surplus production.

Why use a Virtual Battery?

Zero Euro Bills

If you produce enough surplus, you can eliminate your entire bill including fixed power charges and taxes.

Second Home Credits

Transfer excess value from your main residence to a vacation home or apartment in Spain.

No Hardware Needed

Unlike a physical battery, a virtual battery requires no installation and no maintenance.

Top Virtual Battery Providers

Octopus Solar Wallet

The most popular choice. No monthly fee, easy to use, and credits never expire.

A+

No maintenance fee

Indefinite credit carry-over

Excellent app

Holaluz Cloud

One of the pioneers of the 'Zero Bill' concept. Best for large arrays with significant surplus.

A+

Fixed bill option

Early market leader

100% Green energy

Endesa Solar Simply

The big utility's answer to the wallet. Good for those who want a traditional provider with modern features.

A+

Stability of a major utility

Integrated billing

Easy activation

Chasing the highest feed-in rate?

See why the highest feed-in rate is often not the best solar tariff →

Transparency & Market Rules

Freedom to Switch

Under Spanish regulations, domestic clients are generally free to switch electricity providers at any time without penalty. While signing up for a fixed tariff locks in your price (typically for 12 months), it does not lock you to the provider. You remain in control of your contract.

Dynamic Market Pricing

Energy offers in Spain change frequently, especially during times of market volatility. This is why you might find that a friend or neighbor who signed up with the same company has a different pricing structure than yours.

Always Up-to-Date

Our database is constantly updated to reflect the latest market deals. We aim for 100% accuracy, providing you with the most reliable comparison possible based on real-time data.

Is a virtual battery right for you?

The value of a virtual battery depends on your surplus. Upload your bill and we'll calculate how much credit you would have earned last year.

Analyze My Solar Surplus

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