Night EV charging in Luxembourg: night tariffs, dynamic pricing and reference power

Luxembourg has no regulated off-peak hours, so charging at night is only slightly cheaper on a dual-rate offer (about €0.19 per kWh against €0.20 during the day). The real savings come from elsewhere: staying below your Creos reference power, choosing an EV-specific offer or a dynamic tariff, and scheduling the car properly.

This guide explains how the Luxembourg tariff works, compares night offers and dynamic tariffs, puts figures on the possible savings and shows how to schedule charging step by step. It also covers cross-border drivers and companies, which need to reimburse night charging at its real price. Voltaback, which reimburses home charging for more than 200 companies, does this by applying each driver's actual tariff.

Why Luxembourg has no off-peak hours

In many countries the electricity network charges less for kWh used at night. Luxembourg made a different choice: since 1 January 2025, the low-voltage network tariff has been based on power, not on the time of day.

Each household is assigned a reference power (3, 7, 12 kW and so on), calculated from its last 12 months and reviewed every month. As long as average power over a quarter of an hour stays below that threshold, each kWh pays the normal network fee (€0.0510 excluding VAT in 2026). Above it, each kWh carries a surcharge of €0.0765 excluding VAT, by day or by night. Source: Creos, guide to the 2026 tariff structure.

The network's message is therefore: spread your consumption and avoid peaks. For an electric car, that means charging slowly over a long period rather than fast at high power. Price differences by time of day are created by energy suppliers, not by the grid.

What a charged kWh costs, component by component

For a company car or a household budget, the relevant figure is the marginal price of a charged kWh: energy, per-kWh network fee, per-kWh taxes and VAT. Fixed monthly fees are paid anyway and do not depend on the car.

The average bill price often quoted in the press (about €0.26 per kWh) includes fixed fees spread over a typical household's consumption. It is not the price of the next kWh charged into the car.

Suppliers' night offers

Dual-rate offers: a modest gap

Dual-rate offers bill energy slightly cheaper at night. Because the network fee and VAT are the same at any hour, the final gap on Enovos's "Naturstroum Home Double" is roughly one cent per kWh. Over a year it adds up to tens of euros, not hundreds.

An EV-specific offer: naturstroum drive

In March 2025 Enovos launched naturstroum drive, an offer designed for home charging, with four tariff periods. According to the launch announcement:

• the cheapest period runs from midnight to 6am, and from 12pm to 5pm at weekends;
• 5pm to midnight is slightly more expensive than the base rate;
• the offer is for residential customers with a smart meter supplied by Enovos, Leo, Nordenergie or Steinergy.

The discount applies to the energy price. The Creos network fee is set by the network operator and does not change. On the final kWh, the gain is therefore a matter of cents: check the current price list on enovos.lu before comparing. Source: Paperjam, launch of naturstroum drive.

With this offer, smart charging in the MyEnovos app can automatically schedule the car on the cheaper periods. It is tied to the contract address: plugged in more than 200 metres away from that charging point, the car does not benefit.

Dynamic tariffs: following the market hour by hour

A dynamic tariff bills energy at the hourly EPEX Spot wholesale price, plus a supplier commission. Luxembourg shares the German price zone, and prices for each hour are set the day before. At Enovos the offer is called dynamic naturstroum and requires a Smarty smart meter. Source: Enovos, dynamic naturstroum.

For an electric car, this is where the biggest price gaps appear: the cheapest hours often fall at night or, on sunny days, around midday. Negative prices can even occur.

The downside: if you cannot shift your consumption, you pay for the expensive hours, as the supplier itself points out. A dynamic tariff suits drivers who leave the car plugged in for long periods and schedule their charging.

How to read tomorrow's prices

The power exchange publishes next-day hourly prices in the early afternoon, usually between 12:30 and 1pm. If you plug in during the evening, you already know every price of the night. The typical daily profile looks like this:

• evening peak from about 5pm to 9pm: the most expensive hours of the day;
• night from midnight to early morning: low, stable prices;
• midday on sunny days, especially at weekends: often the cheapest hours, sometimes negative.

In the Germany-Luxembourg price zone there were around 575 negative-price hours in 2025, about 6.6 % of the year, against roughly 300 in 2023. Source: Switchr, dynamic tariff in Luxembourg.

What a dynamic tariff really changes

Keep expectations realistic: the dynamic price only affects the energy part of the kWh. Network fee, taxes and VAT stay the same. A comparison site estimates savings of €100 to €250 a year on the energy part for a household using 6,000 kWh that shifts 60 % of its consumption into cheap hours. Below about 45 % of shiftable consumption, a dynamic tariff rarely pays off.

An electric car is the ideal load for it: it stays plugged in for hours and almost all of its consumption can be shifted. At Enovos a dynamic contract is billed monthly, and you can switch back to a standard tariff up to twice a year.

The most effective lever: staying below reference power

Whatever the offer, exceeding your reference power is expensive: a kWh charged at night rises from about €0.19 to about €0.27. That is more than the whole gap between two supplier offers.

Spread charging over the night

A car parked from 10pm to 7am has 9 hours available. Charging at 11 kW in two hours achieves nothing: at 3.7 kW the same energy goes into the battery in one night, without a peak.

Range calculated at 18 kWh per 100 km, charging losses included. A cross-border commuter driving 100 to 120 km a day recovers a day's driving at 3.7 kW in one night. Figures by battery size are in our article on EV charging time.

Commuter example: a cross-border worker living in Trier drives about 50 km each way to Kirchberg, so 100 km a day. With losses, her car needs about 20 kWh per night. At 3.7 kW that is roughly five and a half hours: the charge fits comfortably between midnight and 6am, with no peak.

Choose the right category

Reference power is not requested: the network operator sets it automatically from the consumption peaks of the last twelve months and reviews it monthly. Categories start at 3 kW; in 2026 the monthly fixed fee at Creos is about €7.40 excluding VAT for 3 kW, €12.80 for 7 kW and €19.60 for 12 kW. Source: Switchr, Creos network tariff.

After installing a wallbox, you can simulate your new reference power on myCreos, using standard "electric car with or without power reduction" load curves, and request a change of category. Moving from 3 kW to 7 kW adds about €65 a year to the fixed fee excluding VAT, far less than repeated overruns.

Common night-charging mistakes

• Starting at full power at 10pm while the dishwasher, dryer and oven are still running: the classic route to the overrun surcharge.
• Two schedulers at once: the car and the wallbox set different windows, and charging never starts.
• Charging to 100 % every night: unnecessary for daily use and harder on the battery.
• A dynamic tariff without automation: plugging in on arrival means charging in the most expensive hours.
• An extension lead on a household socket: several hours at full load can overheat it. Use a dedicated circuit.

How much can you save?

Take a car covering 25,000 km a year, so about 4,500 kWh charged at home.

The order of priority is clear: charge at home first, then avoid overruns, then choose the offer that fits. The price of a kWh, component by component, is covered in our article on the electricity price in Luxembourg, and the cost per charge in our article on the cost to charge an electric car.

How to schedule charging

Three tools can start charging at the right time. One is enough: using two at once often creates conflicts.

1. The car's app or screen: desired departure time, charging window, charge limit (80 % for daily use). The simplest option, free and compatible with a reinforced socket.
2. The wallbox: time scheduling and, above all, power limitation to stay below your reference power. Smart wallboxes can also adjust power to the household's consumption.
3. The supplier: with an EV offer or a dynamic tariff, the supplier's app can control charging according to hourly prices, provided the car is compatible.

Setting a charging window in the car, step by step

Menu names vary by brand, but the steps are almost always the same:

1. Open the charging section in the app or the car's menu.
2. Set the "Home" location, so the rule applies only there and not at public chargers.
3. Enter a charging window, for example midnight to 6am, or a departure time by which the car must be ready.
4. Set the daily charge limit to about 80 %.
5. If possible, limit the charging current, for example to 16 A, to stay below your reference power.

The next morning, check in the app that charging really ran in the window you chose.

Good habits

• Check the clock on the car and wallbox after every daylight saving change.
• Leave a margin: a departure time set too tight can leave the battery half empty after a cold night.
• Reschedule before a long trip: start a one-off charge to 100 % just before you leave.
• Pre-heat while plugged in: in winter, heating the cabin from the grid saves the battery.

Looking after the battery at night

Slow overnight charging is actually gentler on the battery than frequent fast charging. What wears a battery over time is mainly sitting at 100 % for long periods and high temperatures. Two rules are enough:

• set a daily charge limit of about 80 %, unless the manufacturer recommends otherwise for its battery chemistry;
• schedule charging to finish shortly before departure, rather than leaving the car full all night.

In winter a cold battery charges more slowly. Allow a little more time or start charging earlier.

Which offer for which profile?

Solar panels: charging during the day

For drivers who work from home or finish early, solar panels change the picture: the best time to charge becomes midday, when production exceeds the house's consumption. Luxembourg supports home solar through the Klimabonus Wunnen scheme, extended to 2030; check the current conditions with the Klima-Agence before planning a project.

A solar kWh is still not free: every kWh you use yourself is a kWh you do not feed into the grid and get paid for. For a company car, the share charged from solar must be measured like the rest, otherwise reimbursement becomes approximate.

Cross-border drivers: your home country's rules apply

On 31 March 2026, 49 % of employees in Luxembourg were cross-border workers. Their cars charge overnight on their home country's tariff, under different rules. Source: IGSS, March 2026.

• Belgium: a dual-rate meter gives a night and weekend rate, around €0.24 per kWh charged at night against about €0.33 on a single rate.
• Germany: a charged kWh costs around €0.32; German suppliers also offer dynamic tariffs. Registering a wallbox with the grid operator as a controllable device can bring a reduced network fee, sometimes time-variable depending on the option chosen. The local grid operator sets the conditions.
• France: most suppliers offer an off-peak option with time windows set in the contract.

The exact windows are in the contract or with the local grid operator; they can change, and the car's schedule must then follow. The logic is the same as in Luxembourg: put charging on the cheapest hours of your own contract. Everything about charging a company car at home is in our company car driver's guide.

Company cars: reimburse the real night price

For the company, night charging raises a simple question: at what price should it be reimbursed? An average day price, or the €0.26 average bill price, overpays a resident who charges at night at €0.19. A single Luxembourg price underpays a driver living in Germany at €0.32.

Luxembourg has no official flat rate per kWh. In practice, following the logic of the Grand-Ducal Regulation of 23 December 2016, electricity for a company car stays covered by the flat-rate benefit in kind when it is reimbursed at the real cost of the kWh actually charged; a higher amount would be salary. This reading is not an official ACD position, so have it confirmed by your fiduciary.

Worked example: which price for which reimbursement?

A resident charges 4,500 kWh a year at home at night, on a dual-rate contract and below reference power.

With a dynamic tariff the price changes every hour. Then only one method is correct: value each charging session at the price of the hours in which it took place.

Voltaback applies each driver's real tariff, including day and night prices when their contract has them. Voltaback relies on the home's MID-certified meter, not on a standalone cable meter; the measurement has been audited by an independent third party (1.22 % relative error). Drivers enter their contract in the driver app, and the company never receives their location data. The full process is described on the home charging reimbursement page.

If there is no communicating meter or load curve, our article on charging without a smart meter sets out the options.

Charge at night, reimburse correctly

In Luxembourg, charging well at night means charging slowly, below your reference power, and then choosing the offer that fits your habits. For the company, it means reimbursing every kWh at the price the driver actually paid, by night or by day, in Luxembourg or across the border. To set up that reimbursement, contact the Voltaback team.