Iberdrola vs Naturgy

Live Comparison • septembre 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), Iberdrola is the cheaper option. Their Plan Online 3 Periodos tariff results in an estimated monthly bill of 65.22 (including taxes). This compares to Naturgy's best option (Tarifa Noche) at €67.42 per month.

Iberdrola Best Bill
65.22
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 Iberdrola's 0.1249 €/kWh.

Best Time-of-Use Rate

Naturgy has cheaper off-peak hours (0.0739 €/kWh vs 0.09999 €/kWh).

Scorecard Comparison

Metric (1-10)IberdrolaNaturgy
Price Competitiveness
6
7
Solar Suitability
7
6
EV Suitability
7
5
Simplicity
5
7
Customer Service
5
5
Transparency
5
6

Full Head-to-Head Comparison

Iberdrola

Iberdrola

4.2 / 5 (14,000+ reviews)
Founded1992
Customers11,000,000+
EnergyMixed (Major Renewables Focus)

Pros

  • Investissement massif dans les renouvelables
  • Application mobile de premier plan
  • Forte présence physique
  • Excellente fiabilité

Cons

  • Les plans standards peuvent être coûteux
  • Erreurs de facturation occasionnelles signalées
  • Structure d'entreprise imposante

Available Tariffs

Plan Más Ahorro

Est. Monthly Bill
88.16
Energy (24h)0.16191 €/kWh
Potencia (P1 / P2)0.109562 / 0.071205 €/kW
Solar Export0.05 €/kWh
Fixed FeeNone

Plan Online

Est. Monthly Bill
75.19
Energy (24h)0.1249 €/kWh
Potencia (P1 / P2)0.119151 / 0.069836 €/kW
Solar ExportN/A
Fixed FeeNone

Plan Estable

Est. Monthly Bill
83.10
Energy (24h)0.148644 €/kWh
Potencia (P1 / P2)0.109562 / 0.071205 €/kW
Solar ExportN/A
Fixed FeeNone

Plan Online 3 Periodos

Est. Monthly Bill
65.22
Energy (P1 / P2 / P3)
0.194 / 0.136 / 0.09999
€/kWh
Potencia (P1 / P2)0.091074 / 0.013483 €/kW
Solar ExportN/A
Fixed FeeNone
Naturgy

Naturgy

4.4 / 5 (2,700+ reviews)
Founded1843
Customers5,000,000+
EnergyMixed (Gas + Renewables)

Pros

  • Idéal pour le combiné Gaz + Lumière
  • Tarifs simples et transparents
  • Entreprise très stable
  • Service technique expérimenté

Cons

  • Moins agressif sur les prix de l'électricité seule
  • Outils numériques basiques comparés à Octopus
  • Grande structure d'entreprise

Available Tariffs

Tarifa Por Uso Luz

Est. Monthly Bill
69.65
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
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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