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Proxima vs Som Energia

Live Comparison • October 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), Som Energia is the cheaper option. Their Som - Tarifa Periodos tariff results in an estimated monthly bill of €80.72 (including taxes). This compares to Proxima's best option ( Tarifa de luz Variable Cristalina) at €104.94 per month.

Proxima Best Bill
€104.94
Som Energia Best Bill
€80.72

* 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

Neither provider currently offers a 24-hour flat rate.

Best Time-of-Use Rate

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

Full Head-to-Head Comparison

Proxima

Proxima

Available Tariffs

Tarifa de luz Variable Cristalina

Est. Monthly Bill
€104.94
Energy (P1 / P2 / P3)
0.317 / 0.236 / 0.22
€/kWh
Potencia (P1 / P2)0.073782 / 0.002 €/kW
Solar ExportN/A
Fixed FeeNone
Som Energia

Som Energia

4.5 / 5 (Local / Coop reviews)
Founded2010
Customers85,000+ members
Energy100% Renewable (Cooperative)

Pros

  • 100% Community-owned and non-profit
  • Total transparency in pricing and management
  • Excellent democratic participation
  • Invests directly in new Spanish renewable plants

Cons

  • Requires a €100 initial membership fee (refundable)
  • Tariffs can be slightly higher than the most aggressive market 'teaser' rates
  • No massive marketing budgets or complex cross-sell offers

Available Tariffs

Som - Tarifa Periodos

Est. Monthly Bill
€80.72
Energy (P1 / P2 / P3)
0.249 / 0.169 / 0.15
€/kWh
Potencia (P1 / P2)0.082011 / 0.008096 €/kW
Solar Export0.03 €/kWh
Fixed FeeNone

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