Octopus Energy 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 Octopus Energy's best option (Octopus Relax) at €85.00 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
Neither provider currently offers a 24-hour flat rate.
Best Time-of-Use Rate
Octopus Energy has cheaper off-peak hours (0.119 €/kWh vs 0.15 €/kWh).
Scorecard Comparison
| Metric (1-10) | Octopus Energy | Som Energia |
|---|---|---|
| Price Competitiveness | 8 | 7 |
| Solar Suitability | 10 | 9 |
| EV Suitability | 10 | 7 |
| Simplicity | 9 | 8 |
| Customer Service | 9 | 9 |
| Transparency | 9 | 10 |
Full Head-to-Head Comparison
Octopus Energy
Pros
- Best choice for EV owners
- Excellent solar compensation
- Simple, no-BS billing
- Highly rated app
Cons
- Potencia rates are slightly higher than some peers
- Frequent but small rate adjustments
Available Tariffs
Octopus Solar
Octopus 3
Octopus Go
Octopus Flexi
Octopus Relax
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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