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Photovoltaics: how solar energy can reduce your bills and your CO₂ footprint + ways to get subsidies.

As the protection of the environment becomes more and more important, and the cost of electricity is constantly rising , more and more Germans are having solar panels installed on their homes to generate their own electricity. It is widely known and recognized that you can make noticeable savings on your electricity bill with a solar installation. How the solar roof affects your bill and how you can finance the cost of the photovoltaic system, we explain in the article.

How can you save with photovoltaics?

Reduce electricity costs with photovoltaic system

The biggest benefit of installing solar panels is that you save on electricity costs. If your solar panels are large enough, you may be able to generate enough electricity to power your entire home. Ideally, you can meet your electricity needs virtually for free. But how exactly does it work?

Lower your electricity bill

Reduce electricity bills with solar energy

In addition to using a renewable and environmentally friendly energy source, lower electricity bills are the main reason many homeowners want to invest in solar panels. The principle is simple: the sun’s rays are absorbed by solar cells and converted into electricity, which provides a portion of your power needs. By generating energy directly, you use less electricity from the grid, which lowers your monthly utility bills.

Depending on when you use your appliances the most, you can save more or less on your electric bills. That’s because any electricity that lowers your electricity usage and doesn’t feed into the grid will give you greater savings.

You can achieve savings by using more electrical devices during the day, while your solar panels can generate electricity and power them directly.

However, if you also have a solar battery storage system, you can cover your energy bills during the day or night. This way, you no longer have to worry about your daily consumption habits.

Save with a battery storage system

Photovoltaic plant which financing possible

Solar batteries are energy storage systems that homeowners can connect to their solar PV systems. They usually consist of lithium-ion batteries and can store the electricity generated by your solar panels during the day.

Solar panels that operate without a battery connected do not realize their full potential because solar energy can only be used during the day when it is available. Not surprisingly, the best time for solar panels to generate electricity is the middle of the day, when the sun is at its highest. If you work away from home at this time, you cannot make the best use of your own solar energy.

When you choose a solar battery, you will notice a significant increase in the amount of utility you get from your solar panels. This is because all the unused electricity generated during the day is stored in the solar battery so that it can be used in the later hours when it is needed.

Depending on the type of solar battery you choose, you can increase your self-consumption and your independence from the grid.

Protect the environment with a solar system

PV plant on the roof how much save


Another benefit of purchasing a solar system is that you will reduce your CO₂ footprint. A typical home PV system can save about 1.3 to 1.6 tons of carbon per year, depending on where you live. Thus, using renewable energy sources such as solar power has a major positive impact on the environment.

Financing the photovoltaic system: These options for funding are available

Promotion for photovoltaic plant which possibilities exist

The cost of a photovoltaic system for your own roof can quickly exceed 10,000 euros. Therefore, it is worth taking a look at the financing options before you reach directly into your own pocket. In some cases, the solar system can be financed without equity and with very favorable interest rates. Here are some of the possible options for financing and promoting photovoltaics on your own roof.

A KfW loan: The Kreditanstalt für Wiederaufbau and its program “Renewable Energies – Standard” offers financing for the purchase or expansion of a solar system. The low-interest loan can be combined with other financing or subsidies.

Finance via bank loan: Some banks can also offer you a special solar loan without land charge registration. Despite declining feed-in tariffs, the solar loan can be worthwhile because of its high financing rate and the low-interest environment. However, certain terms and conditions apply.

Leasing the solar system: You can also lease photovoltaic systems by signing a contract with a leasing company. The company buys the PV system and lets you use it for a monthly fee. After the lease expires, you can either buy the system or extend the contract. Alternatively, you can of course return the PV system, provided it is in good condition.

Photovoltaic system on the roof of an apartment building


Finance PV system through feed-in tariff: Although the feed-in tariff still offers a way to finance the solar system, this option is no longer worth as much as it was, for example, 20 years ago. The reason is that the remuneration for the electricity that is fed into the grid has continued to fall in recent years. Thus, it is much more worthwhile to use the electricity produced yourself instead of feeding it into the public grid.

Subsidies at the regional level: You can also look for subsidy programs at the regional level to finance your solar roof. Most states offer grants for both new construction and conversion of a PV system, as well as for the purchase of an electricity storage system.

Solar panels for multi-family homes benefits