BESS - 50 MW pre-RTB, COD 2029 świętokrzyskie)

A 50 MW BESS project with a capacity of 199.73 MWh, located in southern Poland, is for sale. The project is at an advanced stage of development, with RTB status expected to be granted in Q4 2026 and grid connection anticipated in March 2029 (with the possibility of earlier connection).

The project is connected to PSE’s transmission grid at 220 kV, and the distance from the connection point is only about 450 meters, which is one of its greatest advantages

Key Project Parameters

• Storage capacity: 50 MW
• Storage capacity: 199.73 MWh
• Working hours: 4 hours
• Project status: Late-stage development
• Planned RTB: Q4 2026
• Planned connection date: March 2029 (may be earlier)
• Grid operator: PSE (TSO)
• Connection voltage: 220 kV
• Distance from the connection point: approx. 450 m

Project Documentation and Status

The project includes:

• Secured project site
• Connection Terms issued in February 2024
• The signed connection agreement (GCA)
• WZ/MPZP
• Building permit – pending (Q4 2026)
• Connection line design – in progress (Q4 2026)

Connection Specifications

• Connection Terms Issued: February 14, 2024
• Connection Agreement signed: October 16, 2025
• Estimated connection cost (investor's share): 15, 686,019 PLN
• Advance payment made toward the connection fee: 5,661,500 PLN

 Detailed project documentation is available upon signing an NDA.