1.            The Government of the Cook Islands has received financing from the Asian Development Bank (ADB), European Union (EU), Global Environment Facility (GEF) and Green Climate Fund (GCF) toward the cost of the Renewable Energy Sector Project. This contract will be financed by GCF and ADB will administer the co-financing resources. Procurement rules and procedures of ADB will govern the bidding process. Bidding is open to all Bidders without nationality restrictions.

2.            The Office of the Prime Minister, Government of Cook Islands (“the Employer”) invites sealed bids from eligible Bidders for the design, construction, installation, integration in the existing power system infrastructure and commission of renewable energy facilities (“the Facilities”) as shown below:

“Power station” battery energy storage system (BESS) for grid stability support

(i)            A BESS to be installed at the Rarotonga Power Station of the electricity utility Te Aponga Uira (TAU), on the island of Rarotonga, and connected to the power station main switchgear and SCADA. The BESS is intended to provide reserve capacity, voltage and frequency control to the Rarotonga grid to enable increasing renewable generation in the grid.

(ii)           The BESS shall provide and include:

●    a fully integrated, modular system, suitable for extended service in local conditions

●    capability to charge and discharge at 3 MW (with overload capacity to 6 MW)

●    usable storage capacity of at least 3 MWh

●    advanced control and grid stability functionality

●    high voltage (11 kV) electrical connection to the grid

●    interface to the TAU SCADA