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Niba vs HolaLuz

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 HolaLuz's best option (HolaLuz Rate 3) at €77.89 per month.

Niba Best Bill
69.88
HolaLuz Best Bill
77.89

* 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 HolaLuz's 0.147 €/kWh.

Best Time-of-Use Rate

Niba has cheaper off-peak hours (0.089 €/kWh vs 0.113 €/kWh).

Scorecard Comparison

Metric (1-10)NibaHolaLuz
Price Competitiveness
9
6
Solar Suitability
8
9
EV Suitability
7
6
Simplicity
9
8
Customer Service
8
4
Transparency
9
7

Full Head-to-Head Comparison

Niba

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
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
HolaLuz

HolaLuz

3.5 / 5 (5,800+ reviews)
Founded2010
Customers400,000+
Energy100% Renewable

Pros

  • 100% Green energy commitment
  • Strong focus on solar innovation
  • Transparent monthly payments
  • Ethical business model

Cons

  • Flat rates can be expensive for low users
  • Customer service response times vary
  • Aggressive solar sales focus

Available Tariffs

HolaLuz Classic Rate

Est. Monthly Bill
80.14
Energy (24h)0.147 €/kWh
Potencia (P1 / P2)0.082 / 0.082 €/kW
Solar ExportN/A
Fixed FeeNone

HolaLuz Rate 3

Est. Monthly Bill
77.89
Energy (P1 / P2 / P3)
0.213 / 0.14 / 0.113
€/kWh
Potencia (P1 / P2)0.082 / 0.082 €/kW
Solar ExportN/A
Fixed FeeNone

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