

The KOSTAL PLENTICORE G3 exemplifies unique innovative scalability and user-friendliness. This inverter is a masterpiece of flexibility and compactness, capable of operating as a solar, battery, or hybrid inverter. As the world’s first and only inverter offering immediate or retroactive power expansion, it stands out for its sustainability.
The KOSTAL PLENTICORE G3 embodies eco-design through durability: it features a robust construction for long-term use and flexible power expansion tailored to the users’ needs and life circumstances. Its modular design facilitates maintenance and repairs. The KOSTAL Solar App promotes sustainable energy consumption by allowing users to monitor their energy usage patterns.
The KOSTAL PLENTICORE G3 is produced sustainably in Hagen, North Rhine-Westphalia, Germany. State-of-the-art production lines and short transportation routes ensure a minimal consumption of resources. As contributors to the energy transition, we manufacture locally for many European locations. Our packaging is compact, secure, and optimized for storage, thus minimizing transport emissions. We support sustainability by using less hardware and reducing our environmental impact. The KOSTAL PLENTICORE G3 is repairable and uses materials efficiently. German quality and desired longevity are the foundation of our sustainable practices.
The remarkable technological creativity of the KOSTAL PLENTICORE G3’s overall concept is exemplified by its 3×3 principle. By combining three base devices (S/M/L) with three power variants each, a total of 27 different configurations are possible (instead of 27 different devices). Another environmentally friendly aspect of the KOSTAL PLENTICORE G3 is its ability to activate desired functions through digital product expansions. This agile approach allows customers to tailor their device exactly to their requirements without relying on additional physical hardware.
This makes the replacement or new acquisition of a device unnecessary when energy needs grow and the solar system needs expansion. It is smart, environmentally friendly, and convenient. With the trend towards larger and more complex systems, the flexibility of the KOSTAL PLENTICORE G3 offers a significant advantage. With its ability to switch between solar, battery, and hybrid operation, its adaptability to the changing conditions of the market and demand provides customers with the right device to meet individual needs.
As a manufacturer of PV solutions, wall boxes, inverters, and storage solutions, sustainability and the use of sunlight as an energy source are at the core of our activities. We target various audiences, from end-users to installers and industrial customers. Therefore, we focus on the interaction of the KOSTAL PLENTICORE G3 with other connected PV generation and storage systems via the KOSTAL Solar Portal and Solar App, promoting thus understanding and awareness of prosuming.
As a hybrid inverter, the KOSTAL PLENTICORE G3 is designed for the interplay between generation, intermediate storage, and self-supply/self-optimization. This fosters greater awareness for the careful and sensible management of pregenerated energy. Increased energy efficiency means less commercially generated energy is needed, thereby reducing the use of fossil energy sources.
Our core message is: Energy generation from renewable sources works, ensures autonomy, and is free of charge. At KOSTAL, we believe in the success of the energy transition. Therefore, we focus on renewable energy generation. With the KOSTAL PLENTICORE G3, we have created a solution that is sustainable in every aspect, including its durable, intelligent design and flexible power expansion according each user’s needs and circumstances of life. For us, the KOSTAL PLENTICORE G3 is another important step towards a sustainable future.
Category:Green ProductsYear:2025Location: Germany, North Rhine WestphaliaArchitects:GENERATIONDESIGN GmbH., Wuppertal, GermanyDesign Team:Kevin Klöcker, Janina Clever, Holger Bramsiepe, Florian Bürkner, and Simon PöppinghegeClient:KOSTAL Industrie Elektrik GmbH & Co. KG., Hagen, GermanyPhotographers:GENERATIONDESIGN GmbH