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Because quality is important to me!
That´s why KOSTAL.

KOSTAL - Highest quality and reliability "Made in Germany"

Anyone interested in photovoltaics, e-mobility and modern energy solutions rightly demands high standards of quality, efficiency and reliability.

Quality at KOSTAL: sophisticated technology and durable products for the highest demands

Why quality is important to me!

High quality is essential for me, as it guarantees reliability, safety and sustainability. KOSTAL inverters and wallboxes impress with their high-quality materials, long service life and the highest safety standards. This quality means both maximum efficiency in everyday life and a contribution to the conservation of resources and sustainable energy use - a value that is indispensable for me.

KOSTAL products are made in Germany and fulfil all current safety standards. That gives me a good feeling in everyday life. That's why KOSTAL.

ENECTOR, KOSTAL Smart Energy Meter, PLENTICORE and VARTA battery storage system

Why is quality so important?

A good quality inverter is crucial, as it plays a central role in the performance and reliability of a photovoltaic system. A high-quality inverter ensures an efficient conversion of direct current into alternating current, thereby achieving maximum energy yield.

This leads to lower energy costs and faster amortisation of the system. In addition, a durable, reliable inverter reduces the need for frequent maintenance and repairs, saving both time and money. A high quality device is also better prepared for sudden voltage fluctuations and other electrical challenges, increasing the safety of the entire installation.

Finally, good quality inverters help to minimise downtime, which is important to continuously benefit from the solar energy generated.

Find a certified KOSTAL installer

>>> Choose power electronics from Germany for your solar system with innovative products from KOSTAL. Find your certified KOSTAL installer here and ask about inverters, wall boxes and energy meters – made in Germany. <<<

Find a certified KOSTAL installer!

Why is an inverter so important in combination with a photovoltaic system?

An inverter is essential for the operation of a photovoltaic system, as it converts the direct current (DC) generated by the solar panels into alternating current (AC), which is used in the household and in the power grid. This conversion is necessary because most electrical appliances and the power grid are designed for alternating current. The inverter therefore enables the electricity generated to be used in the home as well as fed into the public grid.

In addition, the inverter ensures that the power quality is constantly monitored and that the system works efficiently to ensure compliance with grid standards. Without the inverter, the solar energy generated could not be utilised effectively for everyday use.

Why is quality an important decision criterion when buying an inverter?

The quality of an inverter directly influences the efficiency, longevity and cost-effectiveness of a photovoltaic system. High-quality components and precise workmanship ensure higher yields, faster amortisation and a positive contribution to environmental protection. A quality product also offers real added value for customers through reliability and safety.

Added value for customers through durable technology

A high-quality inverter is characterised by a robust design, reliable electronics and carefully tested components. This ensures a long service life and avoids expensive repairs and breakdowns. This saves time and costs and ensures stable operation over many years.

Higher yields through optimised efficiency

Quality inverters feature modern circuit technologies, powerful MPP trackers and efficient cooling systems. These ensure that the inverter converts the solar power with minimal losses and gets the maximum yield from the PV system.

Faster amortisation due to lower maintenance costs

High-quality inverters are less prone to defects and require less maintenance or spare parts. This means lower operating costs and a shorter amortisation period, as the investment pays for itself more quickly through high yields.

CO₂ reduction through sustainable materials

Quality manufacturers are increasingly focusing on sustainable, durable and recyclable materials. A long service life and low maintenance requirements conserve resources and improve the carbon footprint, as fewer replacement devices need to be produced and transported.

Safety and reliability

A high-quality inverter offers comprehensive protection mechanisms against overload, overvoltage and overheating. These increase the operational safety of the entire PV system and protect both the electronics and the users from potential damage.

A high-quality inverter is a worthwhile investment. It offers higher yields, lower operating costs, faster amortisation and a better carbon footprint. Customers benefit from reliability, safety and long-term cost-effectiveness, which is what makes a high-quality photovoltaic system truly profitable.

That's why KOSTAL.

KOSTAL has stood for innovation and quality since 1912. The PLENTICORE inverter and the ENECTOR wallbox are two great examples of this family-run company's commitment to innovation and quality. And: Both products are "made in Germany"!

The PLENTICORE inverter offers maximum flexibility through simple storage integration and significantly increases the self-consumption rate. With its high efficiency and user-friendliness, it fulfils the requirements of modern households and companies alike.

The ENECTOR wallbox is the ideal complement to this system. It enables PV-optimised charging of electric vehicles and thus increases the use of green electricity. Together, PLENTICORE and ENECTOR have created a system that combines sustainability, innovation and quality "made in Germany".