Factor Energía vs Octopus Energy

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), Octopus Energy is the cheaper option. Their Octopus Relax tariff results in an estimated monthly bill of 66.41 (including taxes). This compares to Factor Energía's best option (Tarifa Fija Precio Único) at €92.27 per month.

Factor Energía Best Bill
92.27
Octopus Energy Best Bill
66.41

* 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

Octopus Energy wins here. Their flat rate is 0.103 €/kWh compared to Factor Energía's 0.1512 €/kWh.

Best Time-of-Use Rate

Octopus Energy has cheaper off-peak hours (0.079 €/kWh vs 0.168 €/kWh).

Scorecard Comparison

Metric (1-10)Factor EnergíaOctopus Energy
Price Competitiveness
7
8
Solar Suitability
8
10
EV Suitability
6
10
Simplicity
8
9
Customer Service
8
9
Transparency
8
9

Full Head-to-Head Comparison

Factor Energía

Factor Energía

4 / 5 (4,000+ reviews)
Founded1999
Customers300,000+
Energy100% Renewable

Pros

  • Premier fournisseur indépendant en Espagne
  • Énergie 100% renouvelable certifiée
  • Excellente application mobile pour le suivi
  • Structure de facturation très transparente

Cons

  • Attente au service client en période de pointe
  • Les prix fixes peuvent être légèrement plus élevés que les taux du marché
  • Présence principalement axée sur la péninsule

Available Tariffs

Factor Tarifa Respira

Est. Monthly Bill
101.48
Energy (P1 / P2 / P3)
0.3077 / 0.243 / 0.168
€/kWh
Potencia (P1 / P2)0.0965 / 0.025 €/kW
Solar ExportN/A
Fixed FeeNone

Tarifa Fija Precio Único

Est. Monthly Bill
92.27
Energy (24h)0.1512 €/kWh
Potencia (P1 / P2)0.1198 / 0.1198 €/kW
Solar ExportN/A
Fixed FeeNone
Octopus Energy

Octopus Energy

4.8 / 5 (16,000+ reviews)
Founded2015
Customers500,000+
Energy100% Renewable

Pros

  • Meilleur choix pour les propriétaires de VE
  • Excellente rémunération solaire
  • Facturation simple et sans surprise
  • Application très bien notée
  • Support disponible en anglais

Cons

  • Les tarifs de puissance sont légèrement plus élevés que certains pairs
  • Ajustements de tarifs fréquents mais minimes

Available Tariffs

Octopus Solar

Est. Monthly Bill
74.31
Energy (P1 / P2 / P3)
0.209 / 0.118 / 0.093
€/kWh
Potencia (P1 / P2)0.093 / 0.093 €/kW
Solar Export0.035 €/kWh
Fixed FeeNone

Octopus 3

Est. Monthly Bill
67.44
Energy (P1 / P2 / P3)
0.184 / 0.098 / 0.079
€/kWh
Potencia (P1 / P2)0.093 / 0.093 €/kW
Solar ExportN/A
Fixed FeeNone

Octopus Go

Est. Monthly Bill
87.03
Energy (P1 / P2 / P3)
0.248 / 0.248 / 0.104
€/kWh
Potencia (P1 / P2)0.11 / 0.024 €/kW
Solar ExportN/A
Fixed FeeNone

Octopus Flexi

Est. Monthly Bill
73.43
Energy (P1 / P2 / P3)
0.224 / 0.16 / 0.136
€/kWh
Potencia (P1 / P2)0.076 / 0.002 €/kW
Solar ExportN/A
Fixed FeeNone

Octopus Relax

Est. Monthly Bill
66.41
Energy (24h)0.103 €/kWh
Potencia (P1 / P2)0.093 / 0.093 €/kW
Solar Export0.01 €/kWh
Fixed FeeNone

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