Tenders/Implementation of Battery Energy Storage System at Čierny Váh

Implementation of Battery Energy Storage System at Čierny Váh

Slovenské elektrárne, a.s.

Published: Oct 27, 2026

Updated: Oct 27, 2026

Source: TED - Tenders Electronic Daily (EU)

About This Opportunity

This is a supplies contract in the architecture and engineering sector, with a focus on Architectural Design. Located in Slovakia, Europe, this opportunity is open to firms and consortiums.

Published through TED - Tenders Electronic Daily (EU), a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for the supply of goods in the architecture and engineering sector. Supply contracts typically require bidders to demonstrate product compliance with technical specifications, delivery capacity, and relevant certifications. Interested parties should review the full documentation on the original source before submitting their proposal.

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 systems, fire protection and security systems, testing, commissioning, performance verification and training of operating personnel. The tenderer shall provide all documentation, certifications, inspections and services necessary to ensure safe, reliable and long-term operation of the BESS installation.

Data provenance

This notice is sourced from TED - Tenders Electronic Daily (EU) and was originally published on October 27, 2026. Last refreshed today. Original language: sk. BidsFactory mirrors official procurement notices and links back to the source for full legal text.

About Slovenské elektrárne, a.s.

Slovenské elektrárne, a.s. has issued 98 procurement notices on BidsFactory, including 7 currently open and 37 awarded contracts. Activity concentrates in Architecture & Engineering Services, Industry & Manufacturing, and Construction & Civil Works. All notices are published for Slovakia. Notices are distributed via TED - Tenders Electronic Daily (EU). Most recent publication: October 27, 2026.

Frequently asked questions about this tender

Who is the contracting authority?

This notice was issued by Slovenské elektrárne, a.s. in Slovakia. The authority is responsible for evaluating bids, awarding the contract, and managing performance.

What type of contract is this?

This is a Supplies contract in the Architecture & Engineering Services sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.

Where will the contract be performed?

The contract is for delivery in Slovakia. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.

How can I submit a bid?

Visit TED - Tenders Electronic Daily (EU) to access the full notice, required documents, and submission instructions provided by the contracting authority.