Imagina Energía vs Niba

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), Imagina Energía is the cheaper option. Their Sin Horas tariff results in an estimated monthly bill of 66.28 (including taxes). This compares to Niba's best option (niba Solar) at €69.88 per month.

Imagina Energía Best Bill
66.28
Niba Best Bill
69.88

* 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

Imagina Energía wins here. Their flat rate is 0.099 €/kWh compared to Niba's 0.115 €/kWh.

Best Time-of-Use Rate

Niba is the only provider offering a fixed 3-period time-of-use rate.

Scorecard Comparison

Metric (1-10)Imagina EnergíaNiba
Price Competitiveness
8
9
Solar Suitability
9
8
EV Suitability
6
7
Simplicity
8
9
Customer Service
9
8
Transparency
9
9

Full Head-to-Head Comparison

Imagina Energía

Imagina Energía

4.8 / 5 (700+ reviews)
Founded2020
Customers50,000+
Energy100% Solar Energy

Pros

  • Energía 100% solar certificada
  • Precio fijo garantizado por 3 años
  • Excelente atención al cliente personalizada
  • Fuertes funciones para autoconsumo solar

Cons

  • Enfoque principal en planes de precio fijo
  • Marca más joven que las 'Tres Grandes'
  • Gestión principalmente digital

Available Tariffs

Sin Horas

Est. Monthly Bill
66.28
Energy (24h)0.099 €/kWh
Potencia (P1 / P2)0.098 / 0.098 €/kW
Solar Export0.04 €/kWh
Fixed FeeNone
Niba

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
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
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
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
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

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