Naturgy vs Energía XXI
Live Comparison • July 2026
A detailed head-to-head comparison covering rates, typical bills, pros & cons, and features to help you decide which is better for your home.
Our Verdict
Overall Winner: Lowest Typical Bill
Not enough tariff data available to calculate a typical monthly bill comparison.
Best Flat Rate
Naturgy is the only provider offering a true 24-hour flat rate (0.112 €/kWh).
Best Time-of-Use Rate
Naturgy is the only provider offering a fixed 3-period time-of-use rate.
Scorecard Comparison
| Metric (1-10) | Naturgy | Energía XXI |
|---|---|---|
| Price Competitiveness | 7 | 5 |
| Solar Suitability | 6 | 3 |
| EV Suitability | 5 | 3 |
| Simplicity | 7 | 2 |
| Customer Service | 5 | 4 |
| Transparency | 6 | 2 |
Full Head-to-Head Comparison
Naturgy
4.4 / 5 (2,700+ reviews)
Founded1843
Customers5,000,000+
EnergyMixed (Gas + Renewables)
Pros
- Best for combined Gas & Light
- Simple, transparent tariffs
- Very stable company
- Experienced technical service
Cons
- Less aggressive on pure electricity pricing
- Digital tools are basic compared to Octopus
- Large corporate feel
Available Tariffs
Tarifa Por Uso Luz
Est. Monthly Bill€69.65
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (24h)0.112 €/kWh
Potencia (P1 / P2)0.12303 / 0.061562 €/kW
Solar ExportN/A
Fixed FeeNone
Tarifa Noche
Est. Monthly Bill€67.42
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.1822 / 0.1092 / 0.0739
€/kWh
Potencia (P1 / P2)0.12303 / 0.061562 €/kW
Solar ExportN/A
Fixed FeeNone
Energía XXI
1.2 / 5 (3,000+ reviews)
Founded2019
Customers3,000,000+
EnergyMixed (Regulated Market)
Pros
- Access to the Bono Social (government discounts)
- Official regulated prices (PVPC)
- Stability of a large utility group
Cons
- Poor billing transparency
- Hidden unit prices (clumped with tolls)
- No fixed-price security (prices change every hour)
- Low customer satisfaction scores
Available Tariffs
No active tariffs found.
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