Photovoltaik | Ihr Anbieter in Lippstadt
What private clients need to know
Producing green electricity for your own home and at the same time receiving remuneration for the surplus electricity - many homeowners are already benefiting from this today. The concept is called a photovoltaic system (PV system for short). A photovoltaic system converts sunlight into electricity and ensures that your own electricity needs are met in a sustainable manner. Our avitea Industrieservice Meisterbetrieb supports private customers in planning, installing and maintaining their own photovoltaic system.
Rising electricity prices and the effects of climate change are motivating more and more households to invest in their own solar system. But when purchasing a photovoltaic system, consumers are often faced with many questions: Is my house even suitable for a PV system? How much does a solar system cost? How is the purchase subsidised? And when does this investment pay off? The experts in our team are there to help and advise you before, during and after installation.
Electricity from solar energy
A solar system consists of several photovoltaic modules that are installed on the roof of your residential building, for example. Through the photoelectric effect, these modules convert solar radiation into electricity. When a PV system is installed, an inverter is installed that converts the resulting direct current into alternating current. The electricity generated in this way can be used directly in the house. As a rule, the normal electricity meter must then be replaced with a so-called two-direction meter. This is able to measure the electricity that is not consumed but sent to the energy supplier.
A photovoltaic system can be installed with or without a battery. If you decide to purchase a battery, you can store the surplus electricity in it for your own use. This means that you can save the excess electricity produced on a sunny day for a cloudy day.
Excess electricity:
The electricity produced by your photovoltaic system is first used for your own needs. Should you opt for a PV system with battery, the unused electricity is first stored in the battery. Once the battery is fully charged, the excess electricity is finally fed into the grid. The energy provider is legally obliged to buy the excess electricity produced from you. You receive a predefined payment for this. In January 2022, the current feed-in tariff was 6.83 cents per kilowatt hour.
Billing for the feed-in tariff works similarly to normal electricity billing. Based on the size of your photovoltaic system, the weather conditions in your region and taking into account your previous electricity consumption and the size of your energy storage unit, the energy supplier calculates a forecast. This forecast states how much electricity you are expected to feed into the grid. You will then receive a monthly instalment from the energy supplier. After the annual reading of the meter, the instalment sum is adjusted and a repayment or additional payment is made.
Planning: Is my house suitable for a solar system?
Whether flat roof, gable roof, hipped roof or any other roof shape, in principle all residential buildings and buildings with a roof orientation in the cardinal directions of east, south and west are suitable for a photovoltaic system. Roofs on which a contiguous area of solar modules can be installed are particularly good. Roofs with few windows or dormers are therefore optimal, but not a must. Solar systems can also be installed on smaller buildings such as garages, summer houses or sheds, as well as on open areas in the garden. A roof pitch of 30 percent provides the highest efficiency for electricity production from sunlight in our latitudes. In addition, the building should not be in the shade of trees or other buildings to allow direct sunlight.
Important: Of course, there are also differences in the efficiency of solar systems within Germany. For example, photovoltaic systems in the Freiburg area produce more electricity on an annual average than those in Hamburg. Nevertheless, there is enough sunlight in all regions of Germany to make the purchase of a photovoltaic system worthwhile.
Your photovoltaic system will be particularly worthwhile if you can cover a large part of your own needs with the electricity you produce yourself. The solar system should therefore be of an appropriate size so that the installation effort and the acquisition costs are profitable.
The electricity costs of using one's own photovoltaic system, calculated over 20 years, are approximately between 10 and 12 cents per kilowatt hour. This contrasts with the current high electricity prices charged by energy suppliers, which in some cases exceed 35 cents per kilowatt hour. Depending on the size of the system and the battery, the system can be expected to pay for itself in about 8 to 15 years. However, such a prognosis must be calculated individually for each system.
In the area of VAT, it is envisaged that no VAT will be payable on the supply of photovoltaic systems from 1 January 2023, among other things, if they are installed on or near a residential building (zero tax rate). The regulation applies to all components of a photovoltaic system, such as photovoltaic modules, inverters or battery storage. You can find more information here.
Paperwork
You do not need a building permit to install a photovoltaic system. However, the system must be registered with the energy supplier in advance. In general, energy suppliers in Germany are obliged to approve systems of up to 30 kW. Nevertheless, the energy supplier must check the grid compatibility on site in advance. This includes, for example, checking the condition of the cables. The application review can take two to four weeks. It is important to note that the installation of the photovoltaic system must first be approved by the energy supplier before you can commission a specialist company to install it. The same applies to applications for subsidies from the respective district government (explained under "Financing").
It is also advisable to extend the building insurance for your home to include the photovoltaic system. This will protect the solar system and your building from overvoltage damage caused by lightning strikes or damage caused by storms and hail.
After completion of the PV system, it must also be entered in the market master data register at the Federal Network Agency via the so-called PV reporting portal.
These applications and forms are important for a photovoltaic system:
- Registration with the energy supplier
- Application for subsidies to the district government
- Extension of building insurance
- Entry in the market master data register of the Federal Network Agency
avitea Industrieservice's master electrical installation company offers you a turnkey concept for your own photovoltaic system: our team of experts is there for you, from the application and planning to the installation and regular maintenance of the finished system.
Our experts accompany you from the very beginning. The consultation begins, of course, with an on-site assessment of your roof surface. Our master craftsmen will be happy to prepare an individual offer for your personal photovoltaic system and take care of the entire application process for you (with the exception of applying for subsidies).
Once all the necessary applications have been approved, our experts will install the modules on your roof, the inverter, electricity meter and, if necessary, the electricity storage system.
The avitea Industrieservice Meisterbetrieb also offers you the option of connecting your PV system to the Internet. You can monitor your power consumption and the charge status of your battery via web browser on your computer or mobile on your smartphone. After two years, our master company will automatically contact you regarding possible maintenance of the system.
Our special offer: charge e-cars at home via wallbox
Would you like to charge your e-car at home? Then why not use the solar power you produce yourself from your photovoltaic system? Our avitea Industrieservice Meisterbetrieb installs a wallbox for charging your e-car directly at your house. This is supplied with electricity via the PV system. In this way, you can charge part of the battery installed in the car with your own electricity.
