The Vodná elektráreň Okoličné

5 February 2025

The Vodná elektráreň Okoličné Project in Slovakia represents an innovative approach to
modernizing energy management. Within the project, an advanced battery storage system with
parameters of 550 kW power and 1118 kWh capacity has been integrated; it is a key element
for optimizing electricity trading and increasing the flexibility of the entire energy system. It
is important to note that these parameters apply exclusively to the battery storage system, not
to the hydropower plant itself.


Solution and Technical Specification
The project combines traditional renewable energy sources with modern energy storage
technologies. The key technical parameters of the battery storage system are:

  • Power: 550 kW
  • Capacity: 1118 kWh

This system enables the effective storage of excess energy generated by the hydropower plant.
The energy can then be used during periods of increased demand or when market prices are
more favorable, thereby contributing to the optimization of the overall energy economy.


Functionality and Benefits
The integration of the battery storage system brings several significant advantages:

  • Electricity Trading: The system allows for strategic energy storage – excess energy is
    stored during periods of low prices and then used during peak periods, increasing
    operational economic efficiency.
  • Operational Flexibility: Rapid adaptation to changes in demand ensures the stability
    of the distribution network and optimizes the use of generated energy.
  • Optimization of Renewable Sources: Integration with the hydropower plant
    maximizes the use of renewable resources, thereby reducing operating costs and
    increasing energy self-sufficiency.

Control Software and Integration
To ensure effective operation, an advanced control software solution has been implemented,
which:

  • Continuously monitors the status of the battery storage and optimizes charging and
    discharging processes,
  • Dynamically reacts to changing market conditions and electricity demand,
  • Ensures smooth integration between the hydropower plant and the storage system,
    contributing to the overall stability of the system.

Outcome and Future
By implementing the battery storage system with a power of 550 kW and a capacity of
1118 kWh, the Vodná elektráreň Okoličné project has achieved significant improvements in
electricity trading and energy system flexibility.

The project:

  • Optimizes Electricity Trading: Strategic storage and use of energy increase the
    economic efficiency of operations.
  • Enhances Network Stability: Rapid adaptation to changing demand contributes to
    the smooth operation of the distribution network.
  • Serves as a Model for Further Innovation: Integration of modern energy storage
    technologies opens up opportunities for further development and implementation of
    similar solutions in the renewable energy sector.

Thus, the Vodná elektráreň Okoličné project demonstrates how a modern battery storage
system can contribute to sustainable and flexible energy management, aiding the optimization
of renewable energy use and the stabilization of electric power supply.