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Endesa vs Factor Energía

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), Endesa is the cheaper option. Their Endesa Premium ATR tariff results in an estimated monthly bill of €63.93 (including taxes). This compares to Factor Energía's best option (Tarifa Fija Precio Único) at €92.27 per month.

Endesa Best Bill
€63.93
Factor Energía Best Bill
€92.27

* 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 wins here. Their flat rate is 0.095999 €/kWh compared to Factor Energía's 0.1512 €/kWh.

Best Time-of-Use Rate

Endesa has cheaper off-peak hours (0.09441 €/kWh vs 0.168 €/kWh).

Scorecard Comparison

Metric (1-10)EndesaFactor Energía
Price Competitiveness
6
7
Solar Suitability
6
8
EV Suitability
6
6
Simplicity
5
8
Customer Service
4
8
Transparency
5
8

Full Head-to-Head Comparison

Endesa

Endesa

3.9 / 5 (12,000+ reviews)
Founded1944
Customers10,000,000+
EnergyMixed (Renewables + Nuclear + Gas)

Pros

  • Oficinas físicas en toda España
  • Empresa muy estable
  • Tarifas digitales muy competitivas
  • Amplia gama de servicios para el hogar

Cons

  • El servicio al cliente puede ser lento
  • Estructura de facturación compleja
  • Prácticas de marketing agresivas

Available Tariffs

One Luz

Est. Monthly Bill
€76.59
Energy (24h)0.128235 €/kWh
Potencia (P1 / P2)0.094967 / 0.094967 €/kW
Solar ExportN/A
Fixed FeeNone

Endesa Premium ATR

Est. Monthly Bill
€63.93
Energy (24h)0.095999 €/kWh
Potencia (P1 / P2)0.093666 / 0.093666 €/kW
Solar ExportN/A
Fixed FeeNone

Endesa Solar Plus Virtual Battery

Est. Monthly Bill
€83.12
Energy (24h)0.148828 €/kWh
Potencia (P1 / P2)0.090214 / 0.090214 €/kW
Solar Export0.06 €/kWh
Fixed FeeNone

Endesa ATR Fija 24

Est. Monthly Bill
€74.39
Energy (24h)0.123426 €/kWh
Potencia (P1 / P2)0.093666 / 0.093666 €/kW
Solar ExportN/A
Fixed FeeNone

One Luz 3 Periodos

Est. Monthly Bill
€73.01
Energy (P1 / P2 / P3)
0.18621 / 0.11781 / 0.09441
€/kWh
Potencia (P1 / P2)0.093665 / 0.093665 €/kW
Solar ExportN/A
Fixed FeeNone

Conecta Luz

Est. Monthly Bill
€69.25
Energy (24h)0.109 €/kWh
Potencia (P1 / P2)0.094967 / 0.094967 €/kW
Solar ExportN/A
Fixed FeeNone

Endesa ATR Fija Premium

Est. Monthly Bill
€67.05
Energy (24h)0.104191 €/kWh
Potencia (P1 / P2)0.093666 / 0.093666 €/kW
Solar ExportN/A
Fixed FeeNone
Factor Energía

Factor Energía

4 / 5 (4,000+ reviews)
Founded1999
Customers300,000+
Energy100% Renewable

Pros

  • Primer proveedor independiente en España
  • Energía 100% verde certificada
  • Excelente app móvil para seguimiento de consumo
  • Estructura de facturación muy transparente

Cons

  • Tiempos de espera en atención al cliente en horas punta
  • Las tarifas fijas pueden ser ligeramente superiores al mercado variable
  • Enfoque principal en la península

Available Tariffs

Factor Tarifa Respira

Est. Monthly Bill
€101.48
Energy (P1 / P2 / P3)
0.3077 / 0.243 / 0.168
€/kWh
Potencia (P1 / P2)0.0965 / 0.025 €/kW
Solar ExportN/A
Fixed FeeNone

Tarifa Fija Precio Único

Est. Monthly Bill
€92.27
Energy (24h)0.1512 €/kWh
Potencia (P1 / P2)0.1198 / 0.1198 €/kW
Solar ExportN/A
Fixed FeeNone

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