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Alcanzia vs Octopus Energy

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), Alcanzia is the cheaper option. Their Alcanzia Tarifa Fija tariff results in an estimated monthly bill of 72.73 (including taxes). This compares to Octopus Energy's best option (Octopus 3) at €76.33 per month.

Alcanzia Best Bill
72.73
Octopus Energy Best Bill
76.33

* 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 is the only provider offering a true 24-hour flat rate (0.133 €/kWh).

Best Time-of-Use Rate

Alcanzia has cheaper off-peak hours (0.083217 €/kWh vs 0.104 €/kWh).

Scorecard Comparison

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

Full Head-to-Head Comparison

Alcanzia

Alcanzia

4.1 / 5 (500+ reviews)
Founded2013
Customers50,000+
Energy100% Renewable

Pros

  • 100 % sertifisert grønn energi
  • Valg av faste priser eller natt-tariffer
  • Ingen bindingstid (vanligvis)
  • Sterkt tilbud av virtuelt solcellebatteri

Cons

  • Litt høyere strømpriser enn noen rabattmerker
  • Fokusert primært på digital interaksjon
  • Mindre kjent enn de store nasjonale aktørene

Available Tariffs

Alcanzia Tarifa Fija

Est. Monthly Bill
72.73
Energy (P1 / P2 / P3)
0.203288 / 0.122474 / 0.083217
€/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Octopus Energy

Octopus Energy

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

Pros

  • Beste valg for elbileiere
  • Utmerket solenergikompensasjon
  • Enkel og grei fakturering
  • Høyt rangert app

Cons

  • Potencia-priser er noe høyere enn hos enkelte konkurrenter
  • Hyppige, men små prisjusteringer

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

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