Case Study

Control System Upgrade for a Hybrid Powerplant in Hungary

13 Jun 2025

5 min read


ComAp collaborated with KKS-Energy, an engineering and project management company based in Hungary, to provide a modern control solution for one of the country’s first utility-scale hybrid power plants. Featuring a battery energy storage system (BESS) and 3.5 MWp of solar capacity, the plant was designed with zero feed-in control, ensuring all generated energy is either stored or used on-site. This approach limits exposure to increasingly volatile energy prices while ensuring compliance with the country’s Automatic Frequency Restoration Reserve (aFRR) requirements.  

Without a sophisticated control system, the customer’s plant would not be able to accommodate the complex demands of a hybrid system, excluding it from the benefits of arbitrage opportunities, energy trading markets, and the ability to maximise self-consumption and efficiency. To address this, KKS-Energy approached ComAp to implement a tailored hybrid microgrid control solution.

ComAp provided a fully integrated control solution featuring the latest InteliNeo 6000 hybrid microgrid controller, which facilitates the seamless integration of renewables and enables real-time management and monitoring of all energy sources, including photovoltaics, battery energy storage (BESS), and the grid, maximising the efficiency of all energy sources. The system also includes the InteliMains 1010 for import/export control, enabling safe integration with the grid and aFRR compliance. Additionally, the new control system is equipped with ComAp’s InteliVision 10Touch display and InteliSCADA for advanced monitoring and data collection.

As a result of the newly implemented hybrid microgrid control system, KKS successfully implemented zero feed-in control, maximising on-site usage and ensuring that no excess energy was fed back to the grid. In addition to improved efficiency and stability, the customer increased the profitability of their hybrid plant by achieving aFRR accreditation and gaining access to new revenue opportunities in the Hungarian energy market.

I would like to endorse ComAp’s contribution to our project. Their engineer’s expertise was vital in bringing Hungary’s first MAVIR-accredited* zero-feed-in hybrid power plant to life.

Balázs Magyari, Construction Director, KKS ENERGY

*Accreditation by MAVIR ZRt., the Hungarian Transmission System Operator (TSO) responsible for managing Hungary’s electricity transmission network. MAVIR oversees grid reliability and electricity market operations.

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