Implementation of Battery Energy Storage System at Čierny Váh

Title in Slovak as published on TED.

Call for competition published on TED on 4 Nov 2026 by Slovenské elektrárne, a.s. (Slovakia), CPV 31440000 Batteries.

Open on TED Tender documents

Description

The subject matter of the tender comprises EPC performance of all supplies and services related to design and engineering, permitting and other engineering activities, transportation, installation, commissioning and putting into operation of the newly installed equipment. The principal scope of supply is the construction and commissioning of a Battery Energy Storage System (BESS) providing the following functions and services: • Frequency Containment Reserve (FCR); • automatic Frequency Restoration Reserve (aFRR); • market services, including Day-Ahead and Intraday market participation, energy arbitrage and imbalance management; • Limited Frequency Sensitive Mode - Overfrequency (LFSM-O) and Underfrequency (LFSM-U), providing active power response in the event of an increase or decrease in grid frequency; and • island operation to ensure the auxiliary power supply of the pumped-storage hydropower plant in the event of a loss of the 22 kV power supply. The BESS shall have a total usable energy capacity of at least 480 MWh and a rated power of at least 120 MW and shall be connected to the 400 kV substation via a newly constructed 400 kV bay. The scope of works includes all engineering and permitting activities, preparation of design documentation, civil, electrical and mechanical works, delivery and installation of battery containers, power conversion systems, energy management systems, transformers, switchgear and associated equipment. The contractor shall also ensure integration with existing plant systems, implementation of control, protection, monitoring and communication

Lots (1)

Other CPV codes

• 71300000 Engineering services
• 31321300 High-voltage cable
• 31321210 Low-voltage cable
• 45000000 Construction work
• 31321000 Electricity power lines
• 45255400 Fabrication work
• 71632000 Technical testing services
• 80531200 Technical training services
• 31214000 Switchgear

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