Generating electricity with photovoltaics: step-by-step

• Is my roof well exposed for an installation? I find out the solar potential of my roof with the solar cadastre.
• The solar cadastre also provides me with an assessment of whether the orientation and inclination of my roof are appropriate. It aims to identify the best locations for solar radiation to determine the best places to install my solar panels.
• The solar cadastre also allows me to find out the feed-in tariff category I will benefit from when I will feed my electricity production back into the grid. The tool allows me to estimate information such as the available surface and the possible power.
• By refining my search, I can configure the tool to find out more about the profitability of my future installation (dimensions and costs per kW_p, etc.), I get an overview of the estimated income and I can activate an option to calculate a loan amount to support my project.
• At the end of the process, I receive personalised results and information on available subsidies in the form of a PDF.

Is a photovoltaic system a good investment for me? I will receive free advice from a Klima-Agence advisor by calling the hotline or during a home, telephone or video conference advisory session. Klima-Agence also advises me on feed-in tariff, state subsidies and any municipal subsidies available, as well as on the procedures for setting up my installation.

Contact a Klima-Agence advisor

• I obtain bids from the tradesmen and clarify the question of possible additional work.
• I make sure that the tradesmen have studied the situation on site before making an offer. In addition to the yield simulation, the tradesman may also carry out a profitability calculation.

• I check with my municipality to find out which permits and authorisations are required.
• At the same time, I find out about the municipal subsidies available.
• As soon as possible and with the help of my installer, I contact the network operator responsible for my electricity infrastructure, who must authorise each electricity production system in advance and carry out the final acceptance.
• At the same time, I inform myself about the process and conditions of installation.

Liste des gestionnaires de réseaux actifs au Luxembourg

• If my home is a listed building, I should also contact the responsible institute INPA (Institut national pour le patrimoine architectural) (formerly SSMN – Service des sites et monuments nationaux)

• The tradesmen I choose must provide me with the relevant information and explain the precise sequence of operations.
• For a renovation, when the panels are installed, roofing work and an extension of the electrical installation will be necessary.

After the work has been completed, I apply for the Klimabonus state subsidies

• I conclude the feed-in contract with my network operator.
• The network operator will check the installation and give it final approval.
• After approval, my installation will be connected to the electricity network and will be able to feed solar electricity into the grid.

• If the power of my photovoltaic installation exceeds 10 kW_p, I declare the financial benefits of the electricity production in my tax return because these are taxable.
• I do not declare the profits generated by installations with a power of less than 10 kW_p, which are not taxable.

Manuel : Tax treatment of a natural person operating a photovoltaic system

• I avoid yield losses by having my photovoltaic system checked and, if necessary, cleaned by a specialist every 5 to 10 years.