How to Slash Your Electricity Bill in Spain by Timing Your Appliances Right

One Simple Habit That Can Transform Your Electricity Bill

Spain's electricity pricing system is not the same as in many other countries. Rather than paying a flat rate per kilowatt-hour regardless of when you use power, millions of Spanish households on the regulated PVPC tariff (Precio Voluntario para el Pequeño Consumidor) pay a rate that changes every single hour based on wholesale energy market prices.

The result is a pricing structure with dramatic peaks and troughs across the day — and a genuine opportunity for savvy households to cut their bills significantly simply by changing when they run their most power-hungry appliances. The difference can be stark: running your washing machine at midnight can cost three to four times less than running it during the evening peak.

Understanding the PVPC Tariff

The PVPC is the regulated electricity tariff available to households consuming less than 10 kW of power — which covers the vast majority of Spanish homes, including most expat households. Prices are set hourly by Red Eléctrica Española based on wholesale market conditions and published the day before, so you can plan ahead.

Importantly, not all tariffs work this way. If you are on a fixed-rate contract with a private supplier, you pay the same price per kWh at all times and will not benefit from timing your appliances. But if you are on the PVPC or a similar time-of-use indexed tariff, the savings from smart timing can be substantial.

To check which tariff you are on, look at your electricity bill or contact your supplier.

The Price Bands: When Is Electricity Cheapest?

While prices vary daily based on market conditions, there are clear and consistent patterns in when electricity is cheapest and most expensive in Spain:

Time Period	Price Band	Approximate Cost per kWh
Midnight – 7:00 AM	Cheapest	Under 10 cents
7:00 – 8:00 AM	Mid-range	10–15 cents
8:00 AM – 1:00 PM	Most expensive	Over 15 cents
1:00 – 2:00 PM	Mid-range	10–15 cents
2:00 – 5:00 PM	Mid-range	10–15 cents
5:00 – 6:00 PM	Mid-range	10–15 cents
6:00 PM – 10:00 PM	Most expensive	Over 15 cents
10:00 PM – Midnight	Mid-range	10–15 cents

The pattern is consistent: overnight from midnight to 7 AM is the cheapest window, the morning peak (8 AM–1 PM) and the evening peak (6 PM–10 PM) are the most expensive, and the shoulder periods in between sit at mid-range prices.

These are typical patterns — actual hourly prices fluctuate daily and can vary significantly based on renewable energy generation, weather, and overall demand. The published rates for the following day are available on the Red Eléctrica de España website (ree.es) and through numerous apps.

Which Appliances Should You Time?

Not all appliances are worth timing. The ones that make the biggest difference are those that:

• Consume significant amounts of electricity in one session
• Can be programmed with a delay timer
• Do not need to be running at a specific time for practical reasons

Washing Machine

The washing machine is the single best appliance to shift to off-peak hours. A standard wash cycle uses between 0.5 and 2 kWh depending on temperature and load size. Run it during the 6–10 PM peak and you might pay 25–35 cents for that energy. Run it at 2 AM and you could pay 7–10 cents for the same wash.

Most modern washing machines have a delay start function — set it before you go to bed, load it in the evening, and let it run in the early hours. If noise is a concern in a flat or if you have children, aim for the 5–7 AM window just before the morning peak kicks in, which still gives you most of the overnight saving.

Dishwasher

The dishwasher follows the same logic. A full dishwasher cycle uses roughly 1–2 kWh. Load it after dinner and set it to run at midnight rather than immediately — that single change, done consistently, can save meaningful amounts over a month.

As with the washing machine, using the eco mode alongside the timing strategy compounds the savings — eco cycles use less water and less energy and are gentler on dishes too.

Tumble Dryer

If you have a tumble dryer, it is one of the heaviest electricity consumers in the home — typically using 2–5 kWh per cycle. Running it during peak hours is expensive. Overnight is the obvious better option, though bear in mind that tumble dryers should not be left running completely unattended due to fire risk. Running it in the early evening (after 10 PM when prices drop) and being nearby while it finishes is a sensible compromise.

Electric Water Heater (Termo Eléctrico)

Many Spanish homes — particularly apartments — use an electric hot water heater (termo eléctrico) rather than a gas boiler. These can be significant electricity consumers. If yours has a timer, setting it to heat the water during the overnight cheap period (midnight to 6 AM) and relying on the insulation to keep it warm through the morning is an effective strategy. A well-insulated termo can maintain temperature for many hours.

Electric Vehicle Charging

If you charge an electric vehicle at home, overnight charging is the obvious choice — and the savings are substantial given the volume of electricity involved. Some home chargers and EV apps allow you to schedule charging to the cheapest hours automatically.

What NOT to Shift

Some appliances are less practical to time:

• Fridge and freezer — these run continuously and cannot be timed (nor should they be)
• Cooking — it is rarely practical to cook at 2 AM to save money, though a slow cooker set to run overnight is an exception worth considering
• Lighting and screens — relatively low consumption, so the savings from timing are minor compared to simply switching to LEDs and being conscious about usage

How Much Can You Actually Save?

The savings depend on your specific appliance usage, the size of your household, and the price differential on any given day. But the numbers are real and consistent:

• A household that runs a washing machine and dishwasher daily could realistically save €10–€25 per month just from shifting those two appliances to off-peak hours
• Adding an electric water heater on a timer could add another €5–€15 per month
• EV owners charging overnight rather than in the evening could save €20–€50 per month or more depending on mileage

Over a year, those savings add up to hundreds of euros — for zero cost and minimal effort beyond the initial habit change.

Tools to Help You Track Prices

Several free resources make it easy to stay on top of hourly electricity prices in Spain:

• REE (Red Eléctrica de España) — ree.es publishes next-day hourly prices
• ESIOS — the detailed data portal from REE with historical and forecast pricing
• pvpcblog.es — a user-friendly site that presents PVPC prices in an easy-to-read format
• Smartphone apps — several Spanish apps (including those from major suppliers like Endesa and Iberdrola) show hourly prices and can send alerts when prices are particularly low

Other Ways to Reduce Your Spanish Electricity Bill

Timing your appliances is the single most impactful free action you can take, but it works even better alongside a few other habits:

• Switch to LED bulbs — if you have not already, LEDs use around 75–80% less electricity than incandescent bulbs for the same light output
• Use the eco mode on washing machines and dishwashers — lower temperature cycles use significantly less energy
• Full loads only — running appliances at full capacity is more efficient than multiple partial loads
• Standby power — devices left on standby continue to draw power. Plug TVs, gaming consoles, and other electronics into a power strip you can switch off completely when not in use
• Compare tariffs — if you have not reviewed your electricity contract recently, it is worth comparing what is available. The free CNMC Factura tool (factura.cnmc.es) allows you to compare tariffs based on your actual usage data

The Bottom Line

Spain's PVPC electricity pricing system creates a genuine opportunity for households to take control of their bills through nothing more complex than running their washing machine at night instead of the evening. The three-to-four times price differential between peak and off-peak hours means the savings are real, consistent, and cumulative.

Set your delay timers, get into the overnight habit, and watch your electricity bill fall.

Electricity prices vary daily based on wholesale market conditions. The bands and approximate prices listed are indicative of typical patterns and should not be taken as fixed rates. Check ree.es or your supplier's app for the current day's hourly prices.