Design, Supply, Installation, and Commissioning of 45MW/180MWh Battery Energy Storage Systems (BESS) including Associated Civil Works and Initial Operations and Maintenance

REQUEST FOR BIDS

(PLANT DESIGN, SUPPLY AND INSTALLATION)

Design, Supply, Installation, Testing, Commissioning and 3-Year Operations & Maintenance of Four (4) Grid-Scale Battery Energy Storage Systems

Institution: Government of Belize through the Ministry of Finance

Country: Belize

Project: Belize Reliant and Resilient Energy Systems (BRRES) Project

Process ID: BZ-MFEDI - CEU-539302-CW-RFB

Bid Submission Deadline: November 23, 2026; 3:00 p.m. (Local Belize Time)

The Government of Belize has received financing from the World Bank toward the cost of the BRRES Project and intends to apply part of the proceeds toward payments under the Contract for the Design, Supply, Installation, Testing, Commissioning, and 3-Year Operations & Maintenance of Four Independent Battery Energy Storage Systems at Belize Electricity Ltd. substation sites in Westlake, Belize District; Dangriga, Stann Creek District; Buena Vista, Corozal District; and San Pedro, Ambergris Caye. This will strengthen the country’s electricity infrastructure through the integration of 40 MW of battery energy storage. This investment will support the future adoption of renewable energy, enhance grid resilience to extreme weather events, and provide technical assistance for system optimization.

The Government of Belize now invites sealed Bids from eligible Bidders for the complete turnkey design, supply, installation, testing, commissioning, and 3-year O&M of four grid-forming/grid-following BESS facilities with the following minimum capacities:

• Westlake (10.8 MW / 43.2 MWh, 22 kV interconnection);
• Dangriga (10.8 MW / 43.2 MWh, 22 kV interconnection);
• Buena Vista (10.8 MW / 43.2 MWh, 34.5 kV interconnection);
• San Pedro (12.7 MW / 50.8 MWh, 34.5 kV interconnection).

Bidding will be conducted through international competitive procurement using a Request for Bids (RFB) as specified in the World Bank’s “Procurement Regulations for IPF Borrowers” (Fifth Edition, September 2023) (“Procurement...