With your own photovoltaic system, you not only contribute to the energy transition and climate protection, but also optimise your electricity costs. The electricity tariff structure, introduced at the beginning of 2025, supports the development of a modern and secure power grid. By consuming the electricity you generate, you can keep your grid costs low and stable.
A photovoltaic system generates electricity that can be used directly or fed into the grid. Using your own solar power for household appliances, a heat pump, or charging an electric car can be economically beneficial, especially if your electricity supplier’s rates are higher than the feed-in tariff.
A battery storage system can further increase self-consumption by storing excess solar power for nighttime use. However, given the costs and resource requirements, careful planning of the battery size is recommended.
To assess the feasibility and profitability of your project, you can use the national solar cadastre available at energie.geoportail.lu. This tool identifies locations with the highest solar exposure and includes a self-consumption function, allowing users to estimate their consumption and determine the optimal investment.
At subsidies.klima-agence.lu, you can quickly and easily calculate the amount of subsidies available from the state, municipalities, and energy suppliers.
You can also book a free and independent advisory session with a Klima-Agence advisor. This appointment can take place at home, over the phone, or via video call. To request an appointment, simply submit the form on klima-agence.lu. Alternatively, you can call our free hotline 8002 11 90.
Not everyone has the opportunity to install their own photovoltaic system. A practical solution is to share solar power, allowing generated electricity to be used more efficiently and improving the financial return on a system.
For more information visit www.klima-agence.lu/en/energy-community or schedule an appointment for individual consultation.
By consuming your own solar power, high-energy appliances can be powered directly, reducing the amount of electricity drawn from the grid and avoiding grid fees. However, this approach is only cost-effective if your feed-in tariff is lower than your electricity price.
Sharing photovoltaic electricity is another effective way to cut energy costs. By forming a group to share electricity, you can often avoid grid fees while optimising collective self-consumption.
| Other ways to reduce your grid costs |
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In addition to using electricity smartly, it is worth comparing tariffs. The platform calculix.lu provides an independent comparison of electricity suppliers. By entering a few details about your consumption and postcode, you can view the best offers and select the tariff that best suits your needs. Switching providers is very easy via the platform.
