Factor Energía vs ACIS
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), ACIS is the cheaper option. Their SMART -2.0TD Renovable tariff results in an estimated monthly bill of €80.47 (including taxes). This compares to Factor Energía's best option (Tarifa Fija Precio Único) at €92.27 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 (0.1512 €/kWh).
Best Time-of-Use Rate
ACIS has cheaper off-peak hours (0.135124 €/kWh vs 0.168 €/kWh).
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
ACIS
Available Tariffs
EQUAL - 2.0TD No renovable
SMART -2.0TD Renovable
Find the absolute best supplier for your home
Don't rely on typical profiles. Upload your real bill and our AI will calculate exactly which supplier is cheaper for your actual energy usage.
Analyze My Bill Now