FAQ

The amortisation period defines the time it takes for a photovoltaic system to produce the same amount of energy as that required for its manufacture. This is achieved by dividing the energy consumed in the production of the module by the annual energy output of the module.

In general, the amortisation period for the types of panels currently available on the market is less than two years in Central Europe. Thus, cells made of silicon, by far the most widely used on the Luxembourg market, have an amortisation period of less than two years; for thin-film cells, which are currently emerging on the market, this goes down to less than one year.

You have the right to consume electricity that you produce yourself, but you must comply with the connection conditions set by the relevant grid operator. These relate mainly to the safety of the electrical installation and the operation of the grid. For more information, please contact your electricity distribution grid operator.

Are you a member of an existing cooperative that does not yet have a photovoltaic installation, but which meets the conditions to benefit from an electricity purchase (comprising at least 7 people, a non-profit organisation or foundation)? You then have the possibility of convening an extraordinary general meeting in order to discuss extending the scope of activity to include electricity production.

If you do not have the option of installing your own photovoltaic system or if you want to invest in a sustainable future, then you may be interested in joining an existing energy cooperative.

For information on admission requirements, contact the cooperative in question directly. It is usually necessary to send a formal application to the relevant board of directors and, once approved, to acquire at least one share in the existing cooperative.

To achieve the best long-term performance, a photovoltaic installation must be maintained and cleaned regularly. Your installation must therefore be checked every 5 to 10 years by a specialist and, where necessary, cleaned. If you have direct access to the panels, you can also clean them yourself on a regular basis.

If you have sufficient roof space, whether you are a private individual, a company, a farmer or a local authority, you can now have photovoltaic panels with a capacity of up to 200 kW_p installed without setting up a cooperative.