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Iberdrola vs Plenitude

Live Comparison • september 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 Plenitude's best option (Plenitude Fácil Plus Luz (≤ 5 kW)) at €70.23 per month.

Iberdrola Best Bill
65.22
Plenitude Best Bill
70.23

* 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

Plenitude wins here. Their flat rate is 0.107914 €/kWh compared to Iberdrola's 0.1249 €/kWh.

Best Time-of-Use Rate

Iberdrola is the only provider offering a fixed 3-period time-of-use rate.

Scorecard Comparison

Metric (1-10)IberdrolaPlenitude
Price Competitiveness
6
8
Solar Suitability
7
7
EV Suitability
7
6
Simplicity
5
8
Customer Service
5
7
Transparency
5
8

Full Head-to-Head Comparison

Iberdrola

Iberdrola

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

Pros

  • Massive investeringer i fornybart
  • Mobilapp i toppklasse
  • Sterk fysisk tilstedeværelse
  • Svært pålitelig

Cons

  • Standardplaner kan være dyre
  • Noen meldinger om faktureringsfeil
  • Stor bedriftsstruktur

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
Plenitude

Plenitude

4.6 / 5 (2,500+ reviews)
Founded2021
Customers300,000+
Energy100% Renewable

Pros

  • 100 % sertifisert grønn energi
  • Enkle og stabile fastpristariffer
  • Sterk finansiell ryggrad via Eni
  • Uten bindingstid eller exit-gebyrer

Cons

  • Tradisjonell kundeservicemodell
  • Prisene kan være høyere enn hos lavprisaktører
  • Fokus er tungt på fastpris

Available Tariffs

Plenitude Fácil Plus Luz (≤ 5 kW)

Est. Monthly Bill
70.23
Energy (24h)0.107914 €/kWh
Potencia (P1 / P2)0.099984 / 0.099984 €/kW
Solar ExportN/A
Fixed FeeNone

Plenitude Fácil Plus Luz (> 5 kW)

Est. Monthly Bill
75.01
Energy (24h)0.120419 €/kWh
Potencia (P1 / P2)0.099984 / 0.099984 €/kW
Solar ExportN/A
Fixed FeeNone

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