Iberdrola vs ACIS

Live Comparison • juillet 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 tariff results in an estimated monthly bill of 71.75 (including taxes). This compares to ACIS's best option (SMART -2.0TD Renovable) at €80.47 per month.

Iberdrola Best Bill
71.75
ACIS Best Bill
80.47

* 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

Iberdrola is the only provider offering a true 24-hour flat rate (0.1199 €/kWh).

Best Time-of-Use Rate

Iberdrola has cheaper off-peak hours (0.09999 €/kWh vs 0.135124 €/kWh).

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
82.45
Energy (24h)0.1711 €/kWh
Potencia (P1 / P2)0.1042 / 0.0104 €/kW
Solar ExportN/A
Fixed FeeNone

Plan Planazo

Est. Monthly Bill
89.63
Energy (24h)0.1899 €/kWh
Potencia (P1 / P2)0.1042 / 0.0104 €/kW
Solar ExportN/A
Fixed FeeNone

Plan Online

Est. Monthly Bill
71.75
Energy (24h)0.1199 €/kWh
Potencia (P1 / P2)0.119151 / 0.058877 €/kW
Solar ExportN/A
Fixed FeeNone

Plan Estable

Est. Monthly Bill
83.55
Energy (24h)0.143331 €/kWh
Potencia (P1 / P2)0.116411 / 0.082164 €/kW
Solar ExportN/A
Fixed FeeNone

Plan Online 3 Periodos

Est. Monthly Bill
75.45
Energy (P1 / P2 / P3)
0.194 / 0.136 / 0.09999
€/kWh
Potencia (P1 / P2)0.119151 / 0.058877 €/kW
Solar ExportN/A
Fixed FeeNone
ACIS

ACIS

Available Tariffs

EQUAL - 2.0TD No renovable

Est. Monthly Bill
85.06
Energy (P1 / P2 / P3)
0.254044 / 0.180627 / 0.136151
€/kWh
Potencia (P1 / P2)0.112278 / 0.015612 €/kW
Solar ExportN/A
Fixed FeeNone

SMART -2.0TD Renovable

Est. Monthly Bill
80.47
Energy (P1 / P2 / P3)
0.23019 / 0.171489 / 0.135124
€/kWh
Potencia (P1 / P2)0.113206 / 0.003725 €/kW
Solar ExportN/A
Fixed FeeNone

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