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Energía XXI vs A Tu Lado Energía

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

Not enough tariff data available to calculate a typical monthly bill comparison.

Best Flat Rate

A Tu Lado Energía is the only provider offering a true 24-hour flat rate (0.124686 €/kWh).

Best Time-of-Use Rate

A Tu Lado Energía is the only provider offering a fixed 3-period time-of-use rate.

Full Head-to-Head Comparison

Energía XXI

Energía XXI

1.2 / 5 (3,000+ reviews)
Founded2019
Customers3,000,000+
EnergyMixed (Regulated Market)

Pros

  • Access to the Bono Social (government discounts)
  • Official regulated prices (PVPC)
  • Stability of a large utility group

Cons

  • Poor billing transparency
  • Hidden unit prices (clumped with tolls)
  • No fixed-price security (prices change every hour)
  • Low customer satisfaction scores

Available Tariffs

No active tariffs found.

A Tu Lado Energía

A Tu Lado Energía

Available Tariffs

Discriminación Horaria

Est. Monthly Bill
€72.83
Energy (P1 / P2 / P3)
0.21342 / 0.134353 / 0.109399
€/kWh
Potencia (P1 / P2)0.103717 / 0.033279 €/kW
Solar ExportN/A
Fixed FeeNone

Atulado Rosetta, Milenial fixed 24h

Est. Monthly Bill
€75.11
Energy (24h)0.124686 €/kWh
Potencia (P1 / P2)0.113717 / 0.075322 €/kW
Solar ExportN/A
Fixed FeeNone

Atulado Rosetta, Discriminación Horaria

Est. Monthly Bill
€73.34
Energy (P1 / P2 / P3)
0.19287 / 0.112047 / 0.095692
€/kWh
Potencia (P1 / P2)0.103717 / 0.085322 €/kW
Solar ExportN/A
Fixed FeeNone

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