Smart meter in Luxembourg 2026 — everything you need to know
The Smarty smart meter is now installed in the vast majority of Luxembourg homes. It is more than just a more accurate meter: it is the key to optimised electricity contracts (dynamic tariff, off-peak hours, drive night), real-consumption billing, and hourly tracking of your energy use. Since 2026, it is also essential for the new Creos capacity-based network tariff. This guide covers everything — how it works, your data, the new platforms, and how to make the most of it.
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Compare electricity offers →1. What is the Smarty smart meter?
The Smarty is the name given to the Luxembourg smart meter. Unlike a traditional electromechanical meter — which simply showed a cumulative index read once a year — the Smarty measures your consumption (and production, if you have solar panels) precisely, every 15 minutes for electricity and every hour for gas.
Legal obligation: following a European directive transposed into Luxembourg law, all traditional electricity meters in the Grand Duchy had to be replaced by smart meters. The roll-out began in July 2016 and covers all households, regardless of grid operator. Replacement is entirely free for the consumer.
| Feature | Traditional meter | Smarty smart meter |
|---|---|---|
| Meter reading | Manual, once a year by a Creos agent | Automatic remote reading, continuous |
| Granularity | Total index only | Every 15 min (electricity), 1 h (gas) |
| Billing | Based on estimates, annual reconciliation | Real consumption (pay-as-you-go possible) |
| Data access | Limited — raw index only | Hourly curve via MyEnovos or Leneda |
| Available contracts | Single tariff only | Off-peak, drive night, dynamic EPEX tariff |
| Solar production | Required a separate 2nd meter | Single meter for consumption + injection (≤ 30 kW) |
Sources: Creos — Smarty smart meter · smarty.lu
2. Deployment in Luxembourg: who manages what?
The smart meter rollout is coordinated by Luxmetering GIE — an economic interest grouping created by all seven electricity and gas distribution grid operators in Luxembourg.
| Grid operator (GRD) | Area covered | Smarty contact |
|---|---|---|
| Creos Luxembourg | Most of the country | creos-net.lu · my.creos.net |
| Sudstroum | Esch-sur-Alzette | smarty.sudstroum.lu |
| Ville de Diekirch | Diekirch | [email protected] |
| Ville d’Ettelbruck | Ettelbruck | [email protected] |
| Ville de Dudelange | Dudelange | [email protected] |
Source: smarty.lu — national smart meter portal
Not sure whether your Smarty is already active? Check on my.creos.net (if Creos is your grid operator) or the leneda.eu portal to verify your meter status and access your consumption data.
3. How does the Smarty work?
The Smarty reads electricity consumption every 15 minutes (identified by OBIS codes — code 1.8.0 = total active energy consumed in kWh). Gas is read hourly. Data is stored for up to 15 years in Luxmetering’s central system.
Data travels not via Wi-Fi or 4G, but through the existing electricity cables to the nearest transformer station, where a concentrator aggregates data from multiple meters. It is then sent to Luxmetering via fibre or 4G — all transmissions are encrypted.
The Smarty has a P1 port (protected by an encryption key obtainable from your grid operator) that allows a third-party device (dongle, smart home system, HEMS) to read your data in real time locally, without going through Luxmetering.
The Smarty includes an M-Bus port to connect smart gas, water or district heat meters. Some municipalities (Dudelange, Diekirch, Ettelbruck) have already connected their water meters.
4. What data is collected and by whom?
| Data collected | Frequency | Who has access | Authorised purpose |
|---|---|---|---|
| Electricity consumption index | Every 15 min | GRD + supplier + you | Billing, grid management, energy savings |
| Solar production index | Every 15 min | GRD + supplier + you | Feed-in billing, grid management |
| Gas consumption index | Hourly | Gas GRD + supplier + you | Billing, grid management |
| Technical events | Real-time (if incident) | GRD + Luxmetering | Grid operations, remote maintenance |
| P1 port data (real-time) | Continuous (if enabled) | You + authorised third party | Personal monitoring, home automation, optimisation |
Source: Creos — Smarty data and privacy · CNPD (Commission Nationale pour la Protection des Données)
Your data is not sold to third parties. Luxembourg law explicitly prohibits transferring your consumption data for unauthorised commercial purposes. Data is stored in Luxembourg on Luxmetering servers for a maximum of 15 years and may only be used for billing and grid management — unless you explicitly consent to a third-party service via Leneda.
5. Concrete advantages for consumers
No more estimates and surprise annual reconciliations. With Smarty, your supplier bills your real consumption. Enovos offers monthly Pay-As-You-Go billing via MyEnovos — you pay exactly what you consumed that month.
Smarty is the essential technical condition for hourly or dual-rate contracts: off-peak hours (fixed night window at reduced rate), naturstroum drive (−25/−30% from 00:00–06:00), dynamic naturstroum (EPEX Spot price hour by hour). Without an active Smarty, these contracts are not accessible. See our off-peak hours guide →
Via MyEnovos (app or client portal), view your hourly consumption over the past 12 months. Identify heavy consumers, detect anomalies (standby appliance, leak) and optimise your habits.
For PV installations ≤ 30 kW in self-consumption mode, a single Smarty meter now suffices — it measures both grid consumption and injection. No second meter required. Production data accessible via Leneda or MyEnovos.
Your grid operator can perform software updates, readings and some technical operations remotely — no more forced absences waiting for a meter agent.
Without active Smarty → standard single tariff (~€0.258/kWh all day)
With active Smarty + naturstroum drive → night rate ~€0.16/kWh (00:00–06:00)
If 30% of consumption = EV charging + large overnight appliances (1,350 kWh):
Saving: 1,350 × (0.258 − 0.16) = ~€132/year
Total saving including day rate adjustment: approx. €100–180/year with zero investment.
The Smarty is the access condition for these savings — installation is free.
6. Smarty and electricity contracts: what changes
Without active Smarty
- Single tariff only
- Estimated billing
- No EPEX dynamic tariff
- No off-peak or drive night
- No new Creos network tariff (Pref)
- No hourly consumption tracking
With active Smarty
- All contracts available (standard, drive, fix, dynamic)
- Real consumption billing (Pay-As-You-Go)
- Hourly EPEX Spot dynamic tariff
- Activatable night off-peak hours
- naturstroum drive (−25/−30% 00:00–06:00)
- Hourly data on MyEnovos / Leneda
7. New Creos network tariff since 2025: the link with Smarty
Since 1 January 2025, a new network use tariff structure applies to all households equipped with a communicating Smarty. The network tariff is no longer calculated solely on volume consumed (kWh), but also on a reference power level (Pref) assigned to your household.
What changes: your network bill now has two components — a fixed monthly charge based on your reference power category (3 kW, 7 kW, 12 kW, 17 kW or more), and a volumetric charge (~€0.051/kWh). The higher your peak demand (e.g. simultaneous EV charging + heat pump), the higher your Pref category and monthly fixed charge.
| Pref category | Indicative fixed monthly charge (excl. VAT) | Typical profile |
|---|---|---|
| 3 kW | ~€7.42/month | Standard apartment, low consumption |
| 7 kW | ~€12.84/month | House + 7 kW EV charger, or modest heat pump |
| 12 kW | ~€19.61/month | House + EV + heat pump, or intensive use |
| 17 kW | ~€26.39/month | Large home with multiple simultaneous heavy devices |
Source: ILR / Creos — LV network tariffs 2026. Indicative amounts excl. VAT — use simulator on my.creos.net. Full guide: Creos network tariff and reference power →
The Smarty is essential for this new tariff — it measures your real peak demand every 15 minutes. Your Pref category is automatically checked monthly. To limit your category, avoid simultaneous heavy loads (EV charging + washing machine + oven at the same time). This is the most effective zero-cost strategy.
8. Leneda: the national energy data platform
Officially launched on 20 March 2025 by Creos and Minister of Energy Lex Delles, Leneda is Luxembourg’s new national centralised energy data platform. It progressively replaces the MyCreos/Smarty+ ecosystem.
Near-real-time visualisation of consumption and production data · Secure access via LuxTrust or IDNow · Data sharing with authorised third parties · Unique Energy ID simplifying all energy procedures · Free access at leneda.eu
Creos, Sudstroum, Ville de Diekirch and Ville d’Ettelbruck have announced the end of the Smarty+ dongle by end of 2026. Leneda and integrated HEMS (Home Energy Management Systems) replace it for real-time data access via the P1 port.
From spring 2025, new energy processes (supply contracts, grid connections, PV) are progressively integrated into Leneda. It will eventually become the central hub for the entire Luxembourg energy market.
If you have a Smarty+ dongle purchased in 2025, you can request a full refund until 30 June 2026 via smartyplus.lu. The dongle and app will continue to work normally until end of 2026.
Your Smarty is active? Choose the contract that makes the most of it
Off-peak, drive night or dynamic tariff — compare all Luxembourg electricity offers tailored to your consumption profile.
Compare electricity offers →Frequently asked questions
What is the Smarty smart meter in Luxembourg?
The Smarty is the smart electricity and/or gas meter deployed in all Luxembourg homes since 2016. It measures your consumption every 15 minutes (electricity) or every hour (gas), transmits encrypted data to Luxmetering, then to your grid operator and supplier. Installation is free. It is the technical condition for accessing dual-rate or dynamic contracts.
Is my Smarty already installed and active?
Check your meter: the Smarty has an LCD screen and a green button. If you see numbers displayed (code 1.8.0 = kWh index), it is a Smarty. To verify it is active and communicating, log in to my.creos.net or leneda.eu.
Do I need a Smarty to access off-peak hours or the dynamic tariff?
Yes, absolutely. An active communicating Smarty is the essential technical condition for any dual-rate contract (off-peak, naturstroum drive) or dynamic contract (dynamic naturstroum EPEX Spot). Without it, you remain on a standard single tariff.
What is the P1 port on the Smarty?
The P1 port is a physical output on the Smarty that allows a third-party device (smart home system, HEMS, dongle) to read your data locally in real time, without going through Luxmetering. Access requires an encryption key (P1 key) obtainable free from your grid operator. This port is the basis of the Smarty+ dongle and connected HEMS systems.
Does the Smarty+ dongle still work?
Yes, until 31 December 2026. Creos and other grid operators announced the end of the Smarty+ dongle at that date, in favour of Leneda and integrated HEMS. If you bought a dongle in 2025, you can request a full refund until 30 June 2026 at smartyplus.lu.
What is Leneda and why does it matter?
Leneda (leneda.eu) is Luxembourg’s official national energy data platform launched in March 2025. It centralises all your electricity and gas consumption and production data, with secure access via LuxTrust or IDNow. It gives you a unique Energy ID and lets you share data with authorised third parties. Eventually, it will integrate all energy contract processes (supply, grid connections, PV).
Does the new Creos network tariff apply to me if I have a Smarty?
Yes — it applies to all households with a communicating Smarty from 1 January 2025. Your reference power (Pref) is assigned automatically based on your consumption history. Most standard households are at 3 kW (~€7.42/month fixed). Households with EVs, heat pumps or simultaneous heavy loads may be at 7 kW or 12 kW. Simulate your situation at my.creos.net and see our Creos network tariff guide →