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KOSTAL – Your partner with a vision
Power electronics for the energy transition from Germany
KOSTAL stands for industrial expertise, long-term thinking and technological excellence. As a German family-run business, we develop and manufacture sophisticated electronic solutions for international markets – from the automotive industry to photovoltaics.
What sets us apart is sustainable corporate governance, a high degree of vertical integration and a clear commitment to quality – the foundation for the economic stability and sustainable growth of our partners. Everything for your success.
More than just a manufacturer –
Part of an industrial group
Leopold Kostal GmbH & Co. KG is one of Germany’s established industrial companies with a global presence and over 100 years of engineering expertise.
The Photovoltaics Business Unit is part of KOSTAL Industrie Elektrik GmbH & Co. KG – a specialist in sophisticated power electronics with decades of in-depth development and industrial manufacturing expertise.
KOSTAL Solar Electric GmbH is responsible for Europe-wide sales and service – with a clear market focus, regional proximity and technical support for wholesalers and installers.
A sustainable corporate structure and system expertise ensure reliability in project business and service. So that you can plan with confidence.
Why KOSTAL puts you in a better position:
Behind KOSTAL Photovoltaik lies an industrial technology company with in-house development and manufacturing capabilities and a long-term investment outlook. A partner that is here to stay. Sales and service are organised across Europe – with a clear role within the three-tier market.
- Planning security through a long-term corporate structure
- Technological expertise in development
- Continuous product development
- International structure with local contacts
The result: a strong, reliable partner in the market
Designed and manufactured in Germany
Our inverters and system solutions are developed in Germany with a high level of technical expertise. We handle development, quality assurance and key aspects of the value chain in-house.
KOSTAL approaches photovoltaics as a system architecture. Our solutions follow a clear platform logic: inverters, storage integration, energy management and e-mobility mesh seamlessly together.
This makes all the difference for you:
- Wholesalers in product range management
- Installers in planning and commissioning
- Service during ongoing operation
An architecture that consistently brings together technical integration, market requirements and serviceability. With tangible added value for your business.
A partnership of equals
We consistently operate on a three-tier basis – with a clear division of roles and respect for the value created by our partners. Our sales department operates on the principle of strengthening, rather than bypassing, the wholesale and trade sectors as key market partners.
We deploy market initiatives and promotions in a targeted and measured manner – always with the aim of securing sustainable structures and avoiding short-term price erosion.
This creates a market environment based on stability, transparency and long-term cooperation.
Your advantage in planning, installation and service:
- Substantial technical support
- Training courses and Academy programmes
- Joint market development
- Long-term product strategy
A partnership on equal terms – with clear roles, a clear strategy and a clear vision. This creates the foundation for your commercial strength in day-to-day business.
Stability meets the future
The energy transition needs partners who are in it for the long haul. It requires technological advancement, a willingness to invest and a commitment to long-term responsibility.
KOSTAL continuously invests in product innovation, software architecture, manufacturing expertise and service infrastructure – with the aim of ensuring that systems can be operated reliably not only today, but also tomorrow.
KOSTAL continuously invests in:
- New generations of inverters
- Storage integration
- Digital services
- Cybersecurity and software architecture
Our aim is not merely to participate in the market – but to shape it.
Let’s have a chat
Whether you are a wholesaler or an installer: if you are looking for an industrially managed company with a clear systems strategy, we look forward to hearing from you.
FAQ
KOSTAL is part of an internationally established industrial group with over 100 years of history. Photovoltaics is a strategic component of our portfolio. We make continuous, long-term investments in development, manufacturing and software – with the aim of ensuring stable product cycles and a sustainable market presence.
Our inverters and system solutions are subject to continuous development. Firmware updates are carried out in a structured manner and in accordance with clearly defined quality processes. Spare parts availability, serviceability and software maintenance are an integral part of our product lifecycle management.
KOSTAL is firmly committed to the three-tier system. Wholesalers and installers are key market partners. Our sales and marketing activities are designed to strengthen established structures and ensure clear roles within the market.
We set market trends in a targeted and responsible manner. Our promotional campaigns are designed to stimulate demand, not to distort the market in the short term. Our aim is to support sustainable pricing structures and economic stability in the market.
Technical support is provided in a structured manner through our European service units. Training courses, Academy programmes and technical advice support wholesalers and installers from the planning stage right through to day-to-day operations. The aim is to achieve a high first-call resolution rate and ensure reliable availability.
Our system architecture follows a clear platform-based approach. Inverters, storage integration, energy management and e-mobility are being developed in a way that ensures technological compatibility. This results in systems that are compatible, upgradeable and designed for long-term operation.
A seamless system architecture reduces interface risks, simplifies planning and commissioning, and improves serviceability during operation. This reduces indirect costs and provides planning certainty – for both wholesalers and installers.
