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Octopus Energy vs Nexus Energía

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), Nexus Energía is the cheaper option. Their Luz Eficiente tariff results in an estimated monthly bill of 70.31 (including taxes). This compares to Octopus Energy's best option (Octopus 3) at €76.33 per month.

Octopus Energy Best Bill
76.33
Nexus Energía Best Bill
70.31

* 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

Nexus Energía wins here. Their flat rate is 0.1199 €/kWh compared to Octopus Energy's 0.133 €/kWh.

Best Time-of-Use Rate

Nexus Energía has cheaper off-peak hours (0.0957 €/kWh vs 0.104 €/kWh).

Full Head-to-Head Comparison

Octopus Energy

Octopus Energy

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

Pros

  • Uitstekende zonnevergoeding
  • Beste keuze voor EV-eigenaren
  • Eenvoudige facturatie
  • Hoog gewaardeerde app
  • Engelstalige ondersteuning

Cons

  • Potencia-tarieven zijn iets hoger dan bij sommige concurrenten
  • Regelmatige maar kleine tariefaanpassingen

Available Tariffs

Octopus Solar

Est. Monthly Bill
85.49
Energy (P1 / P2 / P3)
0.243 / 0.148 / 0.12
€/kWh
Potencia (P1 / P2)0.093 / 0.093 €/kW
Solar Export0.035 €/kWh
Fixed FeeNone

Octopus 3

Est. Monthly Bill
76.33
Energy (P1 / P2 / P3)
0.174 / 0.124 / 0.114
€/kWh
Potencia (P1 / P2)0.093 / 0.093 €/kW
Solar ExportN/A
Fixed FeeNone

Octopus Go

Est. Monthly Bill
100.82
Energy (P1 / P2 / P3)
0.294 / 0.294 / 0.104
€/kWh
Potencia (P1 / P2)0.11 / 0.06 €/kW
Solar ExportN/A
Fixed FeeNone

Octopus Flexi

Est. Monthly Bill
86.82
Energy (P1 / P2 / P3)
0.246 / 0.179 / 0.186
€/kWh
Potencia (P1 / P2)0.076 / 0.002 €/kW
Solar Export0.035 €/kWh
Fixed FeeNone

Octopus Relax

Est. Monthly Bill
77.86
Energy (24h)0.133 €/kWh
Potencia (P1 / P2)0.093 / 0.093 €/kW
Solar Export0.01 €/kWh
Fixed FeeNone
Nexus Energía

Nexus Energía

Available Tariffs

Luz Estable

Est. Monthly Bill
70.33
Energy (24h)0.1199 €/kWh
Potencia (P1 / P2)0.114467 / 0.053367 €/kW
Solar ExportN/A
Fixed FeeNone

Luz Eficiente

Est. Monthly Bill
70.31
Energy (P1 / P2 / P3)
0.1689 / 0.1306 / 0.0957
€/kWh
Potencia (P1 / P2)0.096667 / 0.0685 €/kW
Solar ExportN/A
Fixed FeeNone

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