FAQ Category


  • Q What happens to spent solar modules?

    A Photovoltaic modules contain a large amount of recyclable materials such as aluminium and glass. If properly disposed of, a large proportion can be recycled to produce new solar modules. At Energy3000 solar, this is ensured by membership of the leading service provider UFH.
  • Q How much CO2 can a PV system save?

    A The CO2 savings of photovoltaic systems can be calculated based on a comparison with electricity generation from fossil energy sources. Accordingly, each kWp output of a PV system prevents the emission of around 500 kg CO2 per year.
  • Q Does the PV system really protect the environment?

    A In contrast to oil and gas, solar energy is available in unlimited quantities and can be produced on site and without emissions. Of course, manufacturing the components of a PV system requires the use of materials and energy, but this is amortized after around two years - from then on, the system is pure profit.
  • Q In view of low remuneration prices, does photovoltaics still pay off at all?

    A Clearly yes! Because the costs for the electricity that you produce with your PV system are lower than the electricity prices of the energy suppliers (see Grid Parity). Although the remuneration rates for green electricity have been reduced, the purchase of PV systems has also become cheaper. And if electricity prices rise, the feed-in tariffs for PV electricity will also rise. In addition, the independence from the electricity market and a yield of around 10% over the lifetime are good arguments in favour of photovoltaics.
  • Q What do "grid parity" and "merit order effect" mean?

    A "Grid parity" translates into grid equivalence and is given when the electricity from the photovoltaic system can be generated at the same costs as the purchase from a conventional electricity supplier. This threshold has long since been undercut, so that owners of PV systems have been driving ever cheaper for years. The "merit order effect" aims to ensure that expensive and polluting power plants are taken off the grid first if they are adequately covered.
  • Q What guarantees does Energy3000 solar provide?

    A Energy3000 solar gives a product guarantee of up to 15 years on new photovoltaic modules on the one hand and a performance guarantee on the other: This includes the promise that your photovoltaic system will deliver the expected performance for over 25 years.
  • Q How do I get to my Energy3000 solar system?

    A Energy3000 solar does not sell its products to end customers itself but relies on selected specialist partners for sales. Local photovoltaic specialists create your individual system concept according to your wishes and ideas. They will also ensure professional installation and commission the system for you. Of course, you will receive competent training and can always turn to these specialist partners.
  • Q How much solar radiation does a solar system need?

    A The annual solar radiation in Austria averages 1,100 kWh per square meter in Vienna, Upper Austria, Lower Austria and Burgenland. Further south it can even reach up to 1,400 kWh. These values make it possible to produce sufficient electricity for one household even with smaller PV systems. In order to optimally adapt your Energy3000 solar system to the local conditions, the solar radiation is calculated in advance and a corresponding selection is made through the dimensioning, alignment and performance of the modules.
  • Q How can solar power be fed into the power grid?

    A By coupling the PV system to the grid, it is possible to feed the solar power into the general power grid. Although the grid operator is obliged to purchase this so-called surplus electricity, there are differences in price. It is therefore worth comparing the offers and tariffs of the individual providers.
  • Q What is the service life of a photovoltaic system?

    A The service life of current solar modules is around 30 years. However, experts such as the Fraunhofer Institute for Solar Energy Systems assume that the service life can be 40 years or more.
  • Q What happens to the electricity that is not used immediately?

    A Solar power that is not consumed immediately can either be fed into the general power grid or fed into a (battery) storage system. Consequently, it is possible to use it at another time - e.g. at night. Control systems monitor the condition of the photovoltaic system so that the current electricity production and the available capacity of the storage can be read at any time.
  • Q What does a photovoltaic system consist of?

    A The central element of a photovoltaic system are the solar cells, which are combined in so-called solar modules to form larger units and protected from contamination and damage by a special glass. The solar modules are attached to the roof via an adequate mounting system and generate direct current, which is converted into usable alternating current by the inverter.
  • Q How is electricity produced from solar energy?

    Electrical energy obtained from the power of the sun is also known as solar power. The electromagnetic radiation that reaches the earth is converted into electricity by photovoltaic (or PV) systems. The electrical DC voltage generated on the solar cells is fed to an inverter where it is converted into usable alternating current. The advantages of this technology are obvious:
    Solar power is available everywhere and to everyone
    Solar power is an inexhaustible source of energy
    Solar power is renewable, passive, noiseless and emission-free
    Solar power makes you independent
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