Factor Energía vs Som Energia
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 Factor Energía's best option (Tarifa Fija Precio Único) at €101.90 per month.
* 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
Factor Energía is the only provider offering a true 24-hour flat rate (0.1879 €/kWh).
Best Time-of-Use Rate
Som Energia has cheaper off-peak hours (0.15 €/kWh vs 0.1922 €/kWh).
Scorecard Comparison
| Metric (1-10) | Factor Energía | Som Energia |
|---|---|---|
| Price Competitiveness | 7 | 7 |
| Solar Suitability | 8 | 9 |
| EV Suitability | 6 | 7 |
| Simplicity | 8 | 8 |
| Customer Service | 8 | 9 |
| Transparency | 8 | 10 |
Full Head-to-Head Comparison
Factor Energía
Pros
- First independent provider in Spain
- 100% Certified renewable energy
- Excellent mobile app for tracking usage
- Very transparent billing structure
Cons
- Customer service wait times during peak hours
- Fixed rates can be slightly higher than variable market rates
- Focus is primarily on the Spanish peninsula
Available Tariffs
Factor Tarifa Respira
Tarifa Fija Precio Único
Som Energia
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
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