Alcanzia vs Naturgy
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
For a typical Spanish household (3.6kW Potencia, 300kWh monthly usage), Naturgy is the cheaper option. Their Tarifa Noche tariff results in an estimated monthly bill of €67.42 (including taxes). This compares to Alcanzia's best option (Alcanzia Tarifa Fija) at €70.12 per month.
Alcanzia Best Bill
€70.12
Naturgy Best Bill
€67.42
* Assumption: 3.6 kW contracted power, 300 kWh monthly usage (20% peak, 30% flat, 50% off-peak), including 21% IVA, 5.11% Electricity Tax, and ~€1 meter rental.
Best Flat Rate
Naturgy wins here. Their flat rate is 0.112 €/kWh compared to Alcanzia's 0.117208 €/kWh.
Best Time-of-Use Rate
Naturgy has cheaper off-peak hours (0.0739 €/kWh vs 0.077133 €/kWh).
Scorecard Comparison
| Metric (1-10) | Alcanzia | Naturgy |
|---|---|---|
| Price Competitiveness | 8 | 7 |
| Solar Suitability | 8 | 6 |
| EV Suitability | 7 | 5 |
| Simplicity | 9 | 7 |
| Customer Service | 7 | 5 |
| Transparency | 8 | 6 |
Full Head-to-Head Comparison
Alcanzia
4.1 / 5 (500+ reviews)
Founded2013
Customers50,000+
Energy100% Renewable
Pros
- 100% Certified green energy
- Choice of flat or time-of-use fixed rates
- No permanent stay required (usually)
- Strong solar virtual battery offering
Cons
- Slightly higher power prices than some discount brands
- Focused primarily on digital interaction
- Less known than the major national players
Available Tariffs
Tarifa Fija (3 Tramos)
Est. Monthly Bill€70.48
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)
0.195564 / 0.116084 / 0.078378
€/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Tarifa Única
Est. Monthly Bill€75.06
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)0.12512 €/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Tarifa Doméstica
Est. Monthly Bill€71.04
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)0.118103 €/kWh
Potencia (P1 / P2)0.08893 / 0.08893 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Doméstica (hasta 5.000 kWh)
Est. Monthly Bill€70.70
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)0.117208 €/kWh
Potencia (P1 / P2)0.08893 / 0.08893 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Fija
Est. Monthly Bill€70.12
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)
0.195109 / 0.115278 / 0.077133
€/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Única
Est. Monthly Bill€74.71
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)0.124203 €/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Doméstica (más de 5.000 kWh)
Est. Monthly Bill€76.08
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)0.131308 €/kWh
Potencia (P1 / P2)0.08893 / 0.08893 €/kW
Solar ExportN/A
Fixed FeeNone
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
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