Photovoltaic Systems
Benefits
Show rising electricity prices the cold shoulder!
Fossil fuels such as crude oil, gas and coal are becoming scarcer and more and more expensive. Since a large part of electricity in Germany is generated using fossil fuels, the price is continuing to rise. With a solar installation, you can look forward to a bright energy future: your solar modules will still be producing electricity in the next 20 to 30 years – without price hikes.
Bask in the sun with a clear conscience!
Every solar installation reduces greenhouse gas emissions, because clean solar electricity replaces electricity generation using coal, oil and gas. A photovoltaic system with a maximum capacity of 1 kW on an area of about 9 square metres spares the environment about 600 to 800 kg of CO2 emissions annually.
Let your roof work for you!
Roofs usually remain unused. Make your roof a money spinner with a solar installation. Every hour of sunlight means money – either through savings on electricity bills or by selling the surplus solar electricity you generate back to the grid. There is hardly a roof that cannot be used for a solar installation. Whether a pitched or flat roof, detached house, multiple dwelling, town or village: a solar installation can be installed virtually anywhere. Solar modules can even be integrated in facades.
Invest, without speculating
The use of high-quality components and our special planning software make the purchase and operation of a solar installation a well planned investment. With our planning software, the installer can adjust the installation to suit the site conditions - for optimal electricity generation and many years of reliable service. Do you want to know, already before making your investment, how much electricity you can produce annually with a solar installation? The program takes local weather data from the past ten years as a basis for calculation to provide a very reliable prediction as to how much electricity your solar installation will produce.
Grow old with your PV system!
Solar modules are very stable and durable. They can reliably deliver electricity for 20 to 30 years. For more sensitive components such as inverters, long-term warranty or maintenance contracts can be concluded so that you can reliably plan your investment over the long term. Incidentally, you won’t have to wait long for the installation of your solar installation: a typical 10 kW roof system can be fully installed and connected to the grid within two to three days.
Profitability
Hardly any other system offers such strong and, above all, reliable returns than solar electricity. Feed-in tariff payments for solar electricity are guaranteed by the government. And, solar installation users can rest assured in the knowledge that they are protected from rising electricity prices. Instead of exporting the electricity generated from the roof back to the grid, it can also be used in the home – and this much cheaper than regular domestic electricity.
Own consumption
The electricity generated with a solar installation does not have to be exported back to the grid; it can also be used in the home. It pays to use the electricity you generate because solar electricity is much cheaper than domestic electricity. Experts expect electricity prices to rise over the next years. Solar installation owners do not need to worry about this, on the contrary: own consumption is becoming more and more lucrative due to rising electricity prices.
In the meantime, the price of domestic electricity...
In the meantime, the price of domestic electricity is generally above payments received for exporting generated solar electricity to the grid. This means that the returns of a solar installation are higher the more generated solar electricity is used in the home.
This is where energy management and energy storage systems help, e.g. the intelligent Home Energy Management System (HEMS) from Würth Solar. It maximises your own consumption by storing the electricity that has not been consumed for later use. This allows you to use the electricity you generate after sunset and reduce your electricity costs from the grid.
How A PV System Works
When sunlight falls on a so-called semi-conductor (e.g. silicon or CIS), charge carrier pairs are generated. Positively and negatively charged particles are created. These charge carriers are separated by an internal electric field. This creates regions with a surplus of electrons and regions with an electron deficiency. Connecting a load between the positive pole and negative pole (e.g. a light bulb) causes DC current to flow.
Electrically connected solar cells make up a solar module. A solar generator is an array of electrically connected modules. An inverter converts the DC current produced by the solar generator into AC current and feeds it either into the in-house electricity network or the grid - a simple solar installation is complete.
A generation and bidirectional meter shows the amount of electricity generated by a solar installation and how much is exported to the grid or used in the home. The electricity exported to the grid is paid according to an in-feed-tariff applicable in the country of use.
Solar energy is subject to fluctuations depending on the time of day and season, but also regional factors such as geographical location and trees can influence the amount of energy produced.
What are the main components of a solar installati...
What are the main components of a solar installation?
- Solar generator (electrically connected modules)
- Mounting system (mechanical support for the solar generator)
- Inverter (converts solar DC current into AC current)
- Generation and bidirectional meter (records the electricity generated and exported to the grid)
System Solutions
A precondition for a reliable, long-lasting solar installation providing maximum returns is a system consisting of ideally matched components - from the right solar module, appropriate mounting system to the inverter. In order to find the best possible solution, the customers’ needs and site conditions must be taken into account in individual planning.
Only top brands create a top system
In addition to the correct combination of individual components, the quality is decisive for the profitability of the solar installation. That is why quality is more important to us than quantity. We only stock top brands with which we have had years of experience. Instead of hundreds of different variants of one product, we concentrate on a selection of the best, which can be optimally integrated in a complete system and give years of reliable service. The following also applies to solar installations: a chain is only as strong as its weakest link.
Our planning tool: the safe way to an optimal solar installation.
In order to determine the optimal system for you, a site survey is essential. During this survey, all relevant data is documented, e.g. the size and condition of the roof or any disturbing objects which may expose the installation to shade.
This is where our “Matrix PV Configurator” planning tool helps. This tool assists the complex planning process from the design to comprehensive documentation, systematically and quickly. The program takes into account the snow and wind loads expected locally and ensures that the installation is structurally sound and able to withstand all weather conditions. Based on local weather data over the past 10 years, the Matrix PV Configurator is also able to reliably predict the returns you can expect to see from your solar installation.
This ensures a system solution that is tailored to the site conditions with maximum returns.
Storing Solar Electricity
In view of the fact that the price of electricity is continuously rising and experts agree that it will continue to rise in the coming years, the future of solar energy lies in own consumption. Instead of exporting the electricity you generate into the grid, you can use it in your own home. In the meantime, the price of self-generated solar electricity is generally much cheaper than domestic electricity, which on average currently costs 25 cents per kilowatt hour.
However, own consumption is limited to the natural fluctuations of sunlight. Depending on the time of day, season or weather, the solar installation does not always produce the amount of electricity needed. And vice versa, it can produce more electricity than required, in particular during daylight hours.
This is where energy management and energy storage systems help, e.g. the intelligent Home Energy Management System (HEMS) from Würth Solar. It feeds the electricity needed directly from the solar installation into the domestic electricity network and stores the electricity that has not been consumed for later use, e.g. after sunset. The HEMS makes it possible to increase your own consumption and, in turn, the profitability of the solar installation.
With the HEMS, a consumption rate of 70 per cent is possible, i.e. only 30 per cent of the solar electricity you generate is exported to the grid - the remainder can be used in the home.
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