Octopus Energy vs Niba
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), Niba is the cheaper option. Their niba Tres tariff results in an estimated monthly bill of €68.67 (including taxes). This compares to Octopus Energy's best option (Octopus 3) at €76.33 per month.
Octopus Energy Best Bill
€76.33
Niba Best Bill
€68.67
* 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
Niba wins here. Their flat rate is 0.119 €/kWh compared to Octopus Energy's 0.133 €/kWh.
Best Time-of-Use Rate
Niba has cheaper off-peak hours (0.083 €/kWh vs 0.104 €/kWh).
Scorecard Comparison
| Metric (1-10) | Octopus Energy | Niba |
|---|---|---|
| Price Competitiveness | 8 | 9 |
| Solar Suitability | 10 | 8 |
| EV Suitability | 10 | 7 |
| Simplicity | 9 | 9 |
| Customer Service | 9 | 8 |
| Transparency | 9 | 9 |
Full Head-to-Head Comparison
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
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
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
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
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
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
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
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
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
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (24h)0.133 €/kWh
Potencia (P1 / P2)0.093 / 0.093 €/kW
Solar Export0.01 €/kWh
Fixed FeeNone
Niba
4.1 / 5 (150+ reviews)
Founded2025
Customers10,000+
Energy100% Renewable
Pros
- Støttet av infrastrukturen og stabiliteten til Iberdrola
- Svært konkurransedyktig flat fastpris ({rate})
- Ingen bindingstid
- 100 % grønn strøm-sertifikater
- Enkel digital registrering og administrasjon
Cons
- Kundeservice er primært digital
- Kortere historikk enn de store tradisjonelle leverandørene
Available Tariffs
niba Solar
Est. Monthly Bill€71.96
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (24h)0.119 €/kWh
Potencia (P1 / P2)0.091 / 0.091 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
niba Zen
Est. Monthly Bill€71.96
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (24h)0.119 €/kWh
Potencia (P1 / P2)0.091 / 0.091 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
niba Tres
Est. Monthly Bill€68.67
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.193 / 0.135 / 0.083
€/kWh
Potencia (P1 / P2)0.077 / 0.077 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
niba Flex
Est. Monthly Bill€86.82
Based on a typical profile: 3.6kW Potencia, 300kWh monthly usage (20% P1, 30% P2, 50% P3), plus standard IVA (21%), Electricity Tax (5.11%), and ~1€ meter hire.
Energy (P1 / P2 / P3)
0.246 / 0.179 / 0.186
€/kWh
Potencia (P1 / P2)0.076 / 0.002 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
Find the absolute best supplier for your home
Don't rely on typical profiles. Upload your real bill and our AI will calculate exactly which supplier is cheaper for your actual energy usage.
Analyze My Bill Now