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Client space

Legal information

Last updated: 7 October 2026

General conditions

These general conditions apply to the website www.lenerga.lu, to the client space and, in Part B, to the energy sharing and energy community services of Lenerga S.à r.l (“Lenerga”). By using the website or creating an account, you accept them.

Part A – Website and client space

1. Purpose of the website

The website presents Lenerga and its services. Its content is general information; it is not a contractual offer and does not replace personal advice. A service is only agreed once a quote or contract has been signed by you and Lenerga.

2. Client space

  • An account is personal to you and the company you represent. You give accurate information and keep it up to date.
  • You keep your password confidential and tell Lenerga without delay if you suspect someone else has used your account.
  • Lenerga may suspend or close an account that is used unlawfully, that harms the service or other users, or that contains false information.
  • You may ask for your account to be closed at any time by writing to info@lenerga.lu.

3. Simulations and figures

The savings, revenues and energy volumes shown on the website or in the client space before a contract is signed are estimates. They are calculated from the data you enter and from assumptions on production, consumption, prices and regulated tariffs. They are not a guarantee of results.

4. Intellectual property

The texts, images, logos, videos, software and design of the website belong to Lenerga or to its partners. You may consult and print them for your own use. Any other reproduction or reuse needs Lenerga’s prior written agreement.

5. Availability and liability

Lenerga takes care to keep the website accurate and available, but does not guarantee that it is free of errors or interruptions. Lenerga is not liable for indirect loss arising from the use of the website, or for the content of external websites it links to. Nothing in these conditions limits liability for gross negligence or wilful misconduct, or any liability that the law does not allow to be limited.

Part B – Energy sharing and energy communities

6. Legal framework and role of Lenerga

Energy sharing in Luxembourg is governed by the amended law of 1 August 2007 on the organisation of the electricity market, as last amended by the law of 2 April 2026, and by the regulations of the Institut Luxembourgeois de Régulation (ILR).

Lenerga designs, sets up and operates energy sharing projects on behalf of their participants. Depending on the project, Lenerga acts as sharing organiser (“organisateur du partage”) within the meaning of article 8quinquies-1 of that law, or as service provider of an energy community within the meaning of article 8quater. Lenerga notified its energy community and energy sharing activity to the ILR on 26 May 2025.

7. Who can take part

  • Active customers, and members or shareholders of an energy community, whose metering points are in Luxembourg.
  • An energy community is a legal entity effectively controlled by its members or shareholders. These are natural persons, local authorities or companies that are not large enterprises. Its main aim is to bring environmental, economic or social benefits to its members or to the area where it operates, rather than financial profit.
  • Participation in a community is open and voluntary.
  • The installed capacity of the production installations associated with one sharing project does not exceed 6 megawatts in total.

8. Your rights as a participant

  • You keep the free choice of your electricity supplier for the energy that is not covered by sharing.
  • You keep all the rights and obligations you have as a final customer under the electricity market law.
  • You are treated fairly and without discrimination. Lenerga applies transparent prices, tariffs and terms to all participants in the same situation.
  • The energy allocated to you is deducted from your total metered consumption for each quarter of an hour. Applicable taxes, levies and network charges remain due.
  • You have access to out-of-court dispute resolution (see article 14).

9. Your contract

Each participant receives a written contract in clear and unambiguous language. It states at least:

  • the identity and address of Lenerga;
  • the services provided and their quality levels;
  • the duration of the contract and the conditions for renewing it, ending it and interrupting the services, including any termination fees;
  • the compensation or refund that applies if the quality levels are not met, including for inaccurate or late invoices;
  • how to start an out-of-court dispute resolution procedure;
  • the conditions under which the contract terms can be changed.

Before you sign, Lenerga gives you the complete contract terms and a short summary of the main terms in plain language. If the contract is concluded through an intermediary, you receive the same information.

10. Prices and changes

  • The prices and tariffs that apply are stated in your contract and communicated to you clearly.
  • Lenerga tells you in good time of any intention to change the contract terms, and of your right to end the contract.
  • If a price is adjusted, Lenerga explains the reasons in a transparent and understandable way at least two weeks before the adjustment takes effect, or at least one month before for residential customers.
  • If you do not accept a change or an adjustment, you are free to end the contract.

11. Leaving or changing organiser

You may leave a sharing project or change sharing organiser in line with the terms of your contract. This does not lead to additional fees, unless you choose to end a fixed-term contract before its end date. Such fees apply only if they are part of a contract you entered into freely and were clearly communicated before you signed. They are proportionate and do not exceed the direct economic loss Lenerga suffers, including the cost of bundled investments or services already provided.

12. Invoices

Lenerga sends you invoices free of charge. They are accurate, easy to understand, clear and concise. On request, invoices and billing information are sent to you electronically, with a clear explanation of how the invoice was calculated.

13. How sharing works

  • Shared electricity is renewable and is allocated between the participants for each quarter of an hour.
  • Before sharing starts, a convention is concluded with the distribution system operator or operators concerned. It names the network users involved, their production, consumption or storage installations and the allocation keys. It is updated whenever the participants, the installations or the keys change.
  • The allocation is carried out by the distribution system operator or, where the participants or the community so decide, by Lenerga on their behalf. It results in an energy balance for each production installation and each supply point.
  • The distribution system operator validates the metering data on shared energy and makes it available at least once a month.
  • Network tariffs: the law exempts from network usage tariffs, among others, renewable electricity shared within an energy community between supply points that are all connected to the low-voltage network of a single distribution system operator and are no more than 300 metres apart. Whether an exemption applies to your project depends on its configuration and on the rules in force; it is not a commitment by Lenerga.

14. Complaints and disputes

  • Send any complaint to info@lenerga.lu or by post to Lenerga S.à r.l, 31, Porte de France, L-4360 Belval. Lenerga acknowledges it within 5 working days and replies within one month.
  • If the dispute is not settled, you may refer it to the mediation service of the Institut Luxembourgeois de Régulation, 17, rue du Fossé, L-1536 Luxembourg, www.ilr.lu, as provided for in article 6 of the electricity market law.
  • Consumers may also contact the Service national du Médiateur de la consommation, www.mediateurconsommation.lu.

Part C – Common provisions

15. Order of precedence

If a signed quote or contract differs from these general conditions, the signed document prevails.

16. Changes to these conditions

Lenerga may update these conditions, for example when the law or ILR regulations change. The date of the last update is shown at the top of this page. Changes that affect a signed contract follow article 10.

17. Applicable law and courts

These conditions are governed by Luxembourg law. The courts of the Grand Duchy of Luxembourg have jurisdiction, without prejudice to the mandatory rights of consumers.

Privacy policy

This policy explains how Lenerga S.à r.l handles personal data, in line with the General Data Protection Regulation (GDPR) and the Luxembourg law of 1 August 2018.

1. Who is responsible

Lenerga S.à r.l, 31, Porte de France, L-4360 Belval, is the controller. For any question about your data, write to info@lenerga.lu.

2. What we collect, why, and for how long

  • Contact form: name, company, e-mail address, phone number, subject and message. Used to answer your request, on the basis of steps taken at your request before a contract and of our legitimate interest in replying. Kept for 2 years after the last exchange.
  • Client space account: name, company, e-mail address and password (stored only in hashed form). Used to create and secure your account, on the basis of the contract. Kept until the account is closed, then 12 months.
  • Energy sharing data, for participants: metering point identifiers, addresses of supply points, quarter-hourly consumption, production and shared volumes, allocation keys, prices, invoices and bank details. Used to organise the sharing, calculate allocations and invoice, on the basis of the contract and of our legal obligations under the electricity market law. Kept for the duration of the contract, then 10 years for accounting records.
  • Technical data: IP address, date and time, pages requested, browser type. Used to deliver the website and keep it secure, on the basis of our legitimate interest. Kept by our hosting provider for up to 30 days.

We do not collect special categories of data, do not sell personal data and do not make decisions based solely on automated processing.

3. Where the data comes from

Most data comes from you. For energy sharing, metering data also comes from the distribution system operators and from the national energy data platform, as provided for by law and by your contract.

4. Who receives it

  • Netlify, Inc. (United States): website hosting and delivery of contact form messages.
  • Supabase, Inc. (servers in London, United Kingdom): client space accounts and data.
  • Microsoft (Microsoft 365, European Union): e-mail.
  • Google Ireland Ltd: the fonts of the website are loaded from Google Fonts, which receives your IP address when a page is displayed. No cookie is set.
  • For energy sharing: the distribution system operators, your electricity supplier where needed, the other participants or the energy community for what the sharing requires, the Institut Luxembourgeois de Régulation, and our accountants and banks.
  • Public authorities where the law requires it.

These providers act on our instructions under a data processing agreement, or receive the data because the law or the contract requires it.

5. Transfers outside the European Union

Data sent to providers in the United States is covered by the EU–US Data Privacy Framework or by the standard contractual clauses of the European Commission. The United Kingdom benefits from an adequacy decision of the European Commission.

6. Security

Access to the data is limited to the people who need it. Connections to the website are encrypted, passwords are hashed and client space data is protected by access rules for each company.

7. Your rights

You may ask to access your data, have it corrected or erased, restrict or object to its processing, receive it in a portable format, and withdraw a consent you have given. Write to info@lenerga.lu; we reply within one month. You may also lodge a complaint with the Commission nationale pour la protection des données (CNPD), 15, boulevard du Jazz, L-4370 Belvaux, www.cnpd.lu.

8. Cookies and local storage

The website sets no advertising or analytics cookies. It only uses storage that is strictly necessary and therefore needs no consent:

  • your language choice, kept in your browser until you clear it;
  • in the client space, your login session and your “remember me” choice, kept until you log out or, without “remember me”, until you close the browser;
  • in the client space, the figures you enter in the simulator, kept in your browser.

You can delete this storage at any time in your browser settings. A summary is available under “Cookie settings” at the bottom of each page.

9. Changes

This policy is updated when our processing or the law changes. The date of the last update is shown at the top of this page.

Lenerga S.à r.l · 31, Porte de France · L-4360 Belval

Cookie settings

This site sets no analytics or advertising cookies. It only uses storage that is strictly necessary, so there is nothing to accept or refuse:

  • your language choice;
  • in the client space, your login session and your “remember me” choice;
  • in the client space, the figures you enter in the simulator.

Details are in the privacy policy.