How to Save on Your Electricity Bill in Spain: 12 Proven Tips

Electricity in Spain doesn’t have to be expensive. With a few smart changes — most of which cost nothing — you can cut your bill by 20-40%. Here are 12 proven strategies, ordered by impact.

1. Shift Heavy Appliances to Off-Peak Hours

The single biggest saving. Run your washing machine, dishwasher, and dryer between midnight and 8 AM on weekdays, or anytime on weekends. Many modern appliances have delay timers built in.

Potential saving: €80-150/year

2. Reduce Your Contracted Power

Your contracted power is a fixed daily charge — you pay it whether you use electricity or not. Most households have more than they need.

If your circuit breaker never trips, ask your provider to reduce your power level. Going from 5.75 kW to 4.6 kW saves around €50/year. Going from 4.6 kW to 3.45 kW saves another €40/year.

Potential saving: €40-100/year

3. Switch to LED Lighting

If you haven’t already, replace all bulbs with LEDs. A 10W LED produces the same light as a 60W incandescent bulb. For a home with 20 light points used 4 hours/day, that’s a massive reduction.

Potential saving: €50-80/year

4. Choose the Right Tariff

Compare the regulated hourly tariff vs. fixed-rate contracts for your specific usage pattern. If you can shift usage to cheap hours, the regulated tariff almost always wins. If not, shop for the most competitive fixed rate.

Potential saving: €50-200/year

5. Program Your Water Heater

Electric water heaters (termos) are one of the biggest energy consumers in Spanish homes. Don’t leave yours on 24/7. Use a timer to heat water only during off-peak hours — 2 hours in the morning is usually enough.

Set the temperature to 55-60°C, not higher. Every 10°C reduction saves roughly 7% of heating energy.

Potential saving: €60-120/year

6. Use Air Conditioning Wisely

In summer, set your AC to 25-26°C, not lower. Each degree below 25°C increases consumption by about 7%. Use the “auto” fan mode and keep windows and doors closed.

Clean your AC filters monthly during summer — dirty filters can increase energy consumption by 15%.

Pre-cool your home in the morning (before 10 AM when electricity is cheaper) and let the thermal mass of the building maintain comfort through peak hours.

Potential saving: €40-100/year

7. Eliminate Standby Consumption

TVs, game consoles, chargers, and coffee machines left on standby consume 5-10% of a typical household’s electricity. Use power strips with switches to completely cut power to devices you’re not using.

Potential saving: €30-60/year

8. Upgrade Old Appliances

An A-rated fridge uses 50-60% less electricity than one from 15 years ago. When it’s time to replace appliances, always choose the highest energy rating you can afford. The payback period is usually 3-5 years.

Priority replacements: fridge/freezer (runs 24/7), washing machine, and dryer.

Potential saving: €50-150/year (after replacement)

9. Apply for the Bono Social

If your household income is below certain thresholds, you may qualify for Spain’s Bono Social discount — up to 40% off the energy part of your electricity bill. Many eligible people don’t know about this program.

Check the requirements: you need to be on the regulated tariff, with contracted power under 10 kW, and meet income criteria.

Potential saving: €150-400/year

10. Cook Smart

Use pressure cookers — they use 50-75% less energy than conventional cooking. When using the oven, avoid opening the door (each opening loses 20% of the heat). Cook in batches on weekends when electricity is cheapest.

Microwave ovens use 80% less energy than conventional ovens for reheating.

Potential saving: €20-40/year

11. Optimize Heating in Winter

If you use electric heating, consider a heat pump — they’re 3-4x more efficient than direct electric heaters. Use programmable thermostats to heat rooms only when occupied, and set the temperature to 19-20°C (use a sweater!).

Seal window and door gaps with weatherstripping. Insulating your home is the best long-term investment.

Potential saving: €100-300/year (with heat pump)

12. Monitor Your Consumption

You can’t improve what you don’t measure. Check your consumption regularly through your provider’s app or website. Many providers offer detailed hourly breakdowns.

Use SPARKANDA to track daily price patterns and identify the cheapest hours for your area. Even a basic awareness of prices helps you make better decisions.

Potential saving: 5-10% of total bill

Adding It All Up

You don’t need to implement all 12 tips. Just the top 5 (shifting usage, reducing power, LEDs, right tariff, and water heater programming) can save €280-650/year for a typical household.

Start with the free changes — they cost nothing and deliver immediate results. Then invest in upgrades like LEDs and efficient appliances as your budget allows.