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Chaira Pumped-Storage Hydropower Plant Revival

Sector: Hydro • Location: Devin, Bulgaria

Source: Megaproject

Project
Planned

Bulgaria's state-owned utility NEK EAD signed a memorandum of understanding with Toshiba International Europe Ltd. to restart operations at the Chaira pumped-storage hydropower plant. The plant, the largest of its kind in Southeastern Europe, has an installed capacity of 864 MW across four units but has been partially out of operation due to aging infrastructure and a turbine accident in 2022. Tos

Status
Prospective
Sector
Hydro, Wind, Power Transmission, Power Generation (CCGT)
Location
Devin, Bulgaria
Updated
22 Jul 2026
Source
Megaproject

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The project “Chaira Pumped-Storage Hydropower Plant Revival” is an infrastructure initiative in the Hydro sector, located in Devin, Bulgaria. Taiyo aggregates data on it from Megaproject.

Participants

Not available for this record.

Status

Original status

planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

Bulgaria's state-owned utility NEK EAD signed a memorandum of understanding with Toshiba International Europe Ltd. to restart operations at the Chaira pumped-storage hydropower plant. The plant, the largest of its kind in Southeastern Europe, has an installed capacity of 864 MW across four units but has been partially out of operation due to aging infrastructure and a turbine accident in 2022. Toshiba is commissioned to repair Unit 1 and provide technical support for the entire plant to enhance reliability and efficiency.

Original sector

Energy

Location

Country

Bulgaria

City

Devin

Source

Source

Megaproject

URL

More Details

Record type

Project

Sector

Hydro, Wind, Power Transmission, Power Generation (CCGT)

Article published date

2026-05-01

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