Niba vs Repsol
Live Comparison • julio 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), Repsol is the cheaper option. Their Precio Fijo BL1 tariff results in an estimated monthly bill of €69.78 (including taxes). This compares to Niba's best option (niba Solar) at €69.88 per month.
Niba Best Bill
€69.88
Repsol Best Bill
€69.78
* 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 0.115 €/kWh compared to Repsol's 0.1199 €/kWh.
Best Time-of-Use Rate
Niba has cheaper off-peak hours (0.089 €/kWh vs 0.0969 €/kWh).
Scorecard Comparison
| Metric (1-10) | Niba | Repsol |
|---|---|---|
| Price Competitiveness | 9 | 7 |
| Solar Suitability | 8 | 6 |
| EV Suitability | 7 | 6 |
| Simplicity | 9 | 6 |
| Customer Service | 8 | 5 |
| Transparency | 9 | 6 |
Full Head-to-Head Comparison
Niba
4.1 / 5 (150+ reviews)
Founded2025
Customers10,000+
Energy100% Renewable
Pros
- Respaldada por la infraestructura y estabilidad del grupo Iberdrola
- Tarifa fija plana extremadamente competitiva ({rate})
- Sin compromisos de permanencia
- Energía 100% verde certificada
- Contratación y gestión 100% online sencillas
Cons
- Atención al cliente orientada principalmente al canal digital
- Marca joven con menor trayectoria que las comercializadoras tradicionales
Available Tariffs
niba Solar
Est. Monthly Bill€69.88
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)0.115 €/kWh
Potencia (P1 / P2)0.089 / 0.089 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
niba Zen
Est. Monthly Bill€69.88
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)0.115 €/kWh
Potencia (P1 / P2)0.089 / 0.089 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
niba Tres
Est. Monthly Bill€71.71
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)
0.196 / 0.169 / 0.089
€/kWh
Potencia (P1 / P2)0.079 / 0.059 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
niba Flex
Est. Monthly Bill€73.43
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)
0.224 / 0.16 / 0.136
€/kWh
Potencia (P1 / P2)0.076 / 0.002 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
Repsol
3.5 / 5 (4,500+ reviews)
Founded1987
Customers1,500,000+
EnergyMixed (Oil & Gas Heritage)
Pros
- Excelentes descuentos en combustible vía Waylet
- Precios fijos estables
- Conveniente paquete multi-servicio
- Marca de gran confianza
Cons
- Las tarifas de luz por sí solas no siempre son las más baratas
- App enfocada mucho en gasolineras
- Quejas recientes sobre el servicio
Available Tariffs
Repsol Tarifa Solar Bateria Virtaul
Est. Monthly Bill€75.88
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)0.1299 €/kWh
Potencia (P1 / P2)0.090137 / 0.090137 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
Tarifa Solar Con Bateria Virtual
Est. Monthly Bill€75.88
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)0.1299 €/kWh
Potencia (P1 / P2)0.090137 / 0.090137 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone
Repsol Tarifa Tranquilísima Fixed 5yr
Est. Monthly Bill€77.41
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)0.1399 €/kWh
Potencia (P1 / P2)0.081918 / 0.081918 €/kW
Solar ExportN/A
Fixed FeeNone
Repsol Tarifa Discriminación Horaria
Est. Monthly Bill€70.73
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)
0.1659 / 0.1159 / 0.0969
€/kWh
Potencia (P1 / P2)0.120274 / 0.06 €/kW
Solar ExportN/A
Fixed FeeNone
Repsol Luz M+
Est. Monthly Bill€73.59
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)0.1299 €/kWh
Potencia (P1 / P2)0.0819 / 0.0819 €/kW
Solar ExportN/A
Fixed FeeNone
Repsol Ahorro Plus
Est. Monthly Bill€72.07
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)0.1199 €/kWh
Potencia (P1 / P2)0.090137 / 0.090137 €/kW
Solar ExportN/A
Fixed FeeNone
Precio Fijo BL1
Est. Monthly Bill€69.78
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)0.1199 €/kWh
Potencia (P1 / P2)0.081918 / 0.081918 €/kW
Solar ExportN/A
Fixed FeeNone
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