Endesa 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 Endesa's best option (Conecta Luz) at €82.77 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
Endesa is the only provider offering a true 24-hour flat rate (0.144433 €/kWh).
Best Time-of-Use Rate
Endesa has cheaper off-peak hours (0.1229 €/kWh vs 0.15 €/kWh).
Scorecard Comparison
| Metric (1-10) | Endesa | Som Energia |
|---|---|---|
| Price Competitiveness | 6 | 7 |
| Solar Suitability | 6 | 9 |
| EV Suitability | 6 | 7 |
| Simplicity | 5 | 8 |
| Customer Service | 4 | 9 |
| Transparency | 5 | 10 |
Full Head-to-Head Comparison
Endesa
Pros
- Physical offices across Spain
- Very stable company
- Competitive digital-only rates
- Wide range of home services
Cons
- Customer service can be slow
- Complex billing structure
- Aggressive marketing practices
Available Tariffs
One Luz
Endesa Solar Plus Virtual Battery
One Luz 3 Periodos
Conecta Luz
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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