Niba vs Alcanzia
Live Comparison • July 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 Solar tariff results in an estimated monthly bill of €69.88 (including taxes). This compares to Alcanzia's best option (Alcanzia Tarifa Fija) at €70.12 per month.
Niba Best Bill
€69.88
Alcanzia Best Bill
€70.12
* 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 Alcanzia's 0.117208 €/kWh.
Best Time-of-Use Rate
Alcanzia has cheaper off-peak hours (0.077133 €/kWh vs 0.089 €/kWh).
Scorecard Comparison
| Metric (1-10) | Niba | Alcanzia |
|---|---|---|
| Price Competitiveness | 9 | 8 |
| Solar Suitability | 8 | 8 |
| EV Suitability | 7 | 7 |
| Simplicity | 9 | 9 |
| Customer Service | 8 | 7 |
| Transparency | 9 | 8 |
Full Head-to-Head Comparison
Niba
4.1 / 5 (150+ reviews)
Founded2025
Customers10,000+
Energy100% Renewable
Pros
- Backed by the infrastructure and stability of Iberdrola
- Extremely competitive flat fixed rate ({rate})
- No permanent contract commitments
- 100% green energy certificates
- Easy digital sign-up and management
Cons
- Customer service is primarily digital-focused
- Limited history compared to century-old traditional giants
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
Alcanzia
4.1 / 5 (500+ reviews)
Founded2013
Customers50,000+
Energy100% Renewable
Pros
- 100% Certified green energy
- Choice of flat or time-of-use fixed rates
- No permanent stay required (usually)
- Strong solar virtual battery offering
Cons
- Slightly higher power prices than some discount brands
- Focused primarily on digital interaction
- Less known than the major national players
Available Tariffs
Tarifa Fija (3 Tramos)
Est. Monthly Bill€70.48
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)
0.195564 / 0.116084 / 0.078378
€/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Tarifa Única
Est. Monthly Bill€75.06
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)0.12512 €/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Tarifa Doméstica
Est. Monthly Bill€71.04
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)0.118103 €/kWh
Potencia (P1 / P2)0.08893 / 0.08893 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Doméstica (hasta 5.000 kWh)
Est. Monthly Bill€70.70
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)0.117208 €/kWh
Potencia (P1 / P2)0.08893 / 0.08893 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Fija
Est. Monthly Bill€70.12
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)
0.195109 / 0.115278 / 0.077133
€/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Única
Est. Monthly Bill€74.71
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 (24h)0.124203 €/kWh
Potencia (P1 / P2)0.101949 / 0.08553 €/kW
Solar ExportN/A
Fixed FeeNone
Alcanzia Tarifa Doméstica (más de 5.000 kWh)
Est. Monthly Bill€76.08
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)0.131308 €/kWh
Potencia (P1 / P2)0.08893 / 0.08893 €/kW
Solar ExportN/A
Fixed FeeNone
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