Endesa vs Octopus Energy
Live Comparison • oktober 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), Endesa is the cheaper option. Their Conecta Luz tariff results in an estimated monthly bill of €82.77 (including taxes). This compares to Octopus Energy's best option (Octopus Relax) at €85.00 per month.
Endesa Best Bill
€82.77
Octopus Energy Best Bill
€85.00
* 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
Endesa is the only provider offering a true 24-hour flat rate (0.144433 €/kWh).
Best Time-of-Use Rate
Octopus Energy has cheaper off-peak hours (0.119 €/kWh vs 0.1229 €/kWh).
Scorecard Comparison
| Metric (1-10) | Endesa | Octopus Energy |
|---|---|---|
| Price Competitiveness | 6 | 8 |
| Solar Suitability | 6 | 10 |
| EV Suitability | 6 | 10 |
| Simplicity | 5 | 9 |
| Customer Service | 4 | 9 |
| Transparency | 5 | 9 |
Full Head-to-Head Comparison
Endesa
3.9 / 5 (12,000+ reviews)
Founded1944
Customers10,000,000+
EnergyMixed (Renewables + Nuclear + Gas)
Pros
- Fysieke kantoren in heel Spanje
- Zeer stabiel bedrijf
- Competitieve digitale tarieven
- Breed scala aan huisdiensten
Cons
- Klantenservice kan traag zijn
- Complexe facturatiestructuur
- Agressieve marketingpraktijken
Available Tariffs
One Luz
Est. Monthly Bill€98.46
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (24h)0.185544 €/kWh
Potencia (P1 / P2)0.094967 / 0.094967 €/kW
Solar ExportN/A
Fixed FeeNone
Endesa Solar Plus Virtual Battery
Est. Monthly Bill€92.91
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (24h)0.171957 €/kWh
Potencia (P1 / P2)0.093666 / 0.093666 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
One Luz 3 Periodos
Est. Monthly Bill€84.95
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.2249 / 0.1489 / 0.1229
€/kWh
Potencia (P1 / P2)0.093665 / 0.093665 €/kW
Solar ExportN/A
Fixed FeeNone
Conecta Luz
Est. Monthly Bill€82.77
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (24h)0.144433 €/kWh
Potencia (P1 / P2)0.094967 / 0.094967 €/kW
Solar ExportN/A
Fixed FeeNone
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€98.81
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.233 / 0.177 / 0.137
€/kWh
Potencia (P1 / P2)0.12 / 0.12 €/kW
Solar Export0.035 €/kWh
Fixed FeeNone
Octopus 3
Est. Monthly Bill€88.70
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.185 / 0.134 / 0.129
€/kWh
Potencia (P1 / P2)0.12 / 0.12 €/kW
Solar ExportN/A
Fixed FeeNone
Octopus Go
Est. Monthly Bill€129.34
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.392 / 0.392 / 0.119
€/kWh
Potencia (P1 / P2)0.12 / 0.1 €/kW
Solar ExportN/A
Fixed FeeNone
Octopus Flexi
Est. Monthly Bill€105.25
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.317 / 0.236 / 0.22
€/kWh
Potencia (P1 / P2)0.076 / 0.002 €/kW
Solar Export0.035 €/kWh
Fixed FeeNone
Octopus Relax
Est. Monthly Bill€85.00
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.144 / 0.129 / 0.129
€/kWh
Potencia (P1 / P2)0.12 / 0.12 €/kW
Solar Export0.01 €/kWh
Fixed FeeNone
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