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7208 MEIDECC BIDS 14 - 21 March 2023


Invitation for Bids

Ministry of Meteorology, Energy, Information, Disaster Management, Environment, Climate Change and Communications

Date: 7th March2023
Grant no. & Title: 49450-012 Tonga Renewable Energy Project.
Contract no. and Title: TREP-12 Renewable Energy based mini grids in Vava'u Outer Islands- turnkey supply, install and commission
Deadline for Submission of Bids: 18th April 2023, 2:00 pm (Tonga Time)

1. The Tonga Power Limited and Ministry of Meteorology, Energy, Information, Disaster Management, Environment, Climate Change and Communications has applied for financing from the Asian Development Bank (ADB), and Green Climate Fund (GCF) toward the cost of the Tonga Renewable Energy Project. Part of this financing will be used for payments under the contract named above. Procurement rules and procedures of ADB will govern the bidding process. Bidding is open to all Bidders without nationality restriction.

2. The Ministry of Meteorology, Energy, Information, Disaster Management, Environment, Climate Change and Communications (“the Employers”) invite sealed bids from eligible Bidders for the design, construction, installation, integration Solar PV and battery power systems (“the Facilities”) of the Vava’u outer islands of Tonga as shown below:

To supply four (4) independent power systems to the Vava’u Island Group of Falevai, Hunga, Ofu and Otea to create independent minigrids.

Each power system shall consist of a village level solar PV array and battery energy storage system (BESS), and a distribution system and customer connections. There is no current centralized power supply on these islands. The power systems are required provide power 24 hour per day 7 day per week meeting the estimated island demand, which are estimated as being:

  1. Falevai (27kWdc solar, 11kW/305kWh BESS)
  2. Hunga (72kWdc solar, 30kW/825kWh BESS)
  3. Ofu (39kWdc solar, 17kW/450kWh BESS)
  4. Otea (30kWdc solar, 13kW/340kWh BESS)

3. International Competitive Bidding will be conducted in accordance with ADB’s Single-Stage: One- Envelope bidding procedure and is open to the Bidders using universal procurement, as described in the bidding documents.

4. To obtain further information and electronic version of the bidding documents, Bidders should contact via email:

Attention: Entura TREP team
Electronic mail address:

Leesa [dot] deGroot [at] entura [dot] com [dot] au

CC to David [dot] skinner [at] entura [dot] com [dot] au

To obtain the Bidding Documents, in English, prospective bidders should download the Bidding (Tender) Documents from the Tenderlink portal:

Any potential tenderer wishing to download the Tender Documents must first register on the portal.

Any addenda to the Tender Documents (revisions and the like) will be uploaded on the Tenderlink portal and all suppliers that have downloaded the documents will receive an email notification in regards to the addenda.

Any questions or inquiries pertaining to the tender should be directed via the online forum on the Tenderlink portal:

A pre-bid meeting will be held by Videoconference.

Date: Monday 3rd April 2023
Time: 2:00 pm (local time - Tonga)

All registered bidders will be provided the video-conferencing link to access and join the pre-bid meeting seven days in advance. Attendance is not mandatory but highly recommended.

Non Attendance will not be cause for disqualification.

5. Deliver your bid:

Interested bidders shall submit the scanned copy of their bids through the TenderLink’s Electronic Tender Box by the deadline of 18th April 2023, 2:00 pm (Tonga Time) together with bid securing declaration. Late bids and hard copy paper submissions shall not be accepted. Bidders will receive a Successful Submission Receipt timed and dated upon completion. If bidders require any assistance relating to e-tendering portal, they may contact TenderLink support help desk through email support [at] tenderlink [dot] com. Bids will be opened immediately after the deadline for bid submission in the presence of the Bidders’ representatives who choose to attend. Late bids will be rejected”.

6. Price Bids from the Bidders who are assessed as substantively technically conforming will be opened at a time and date to be advised to those Bidders via email. Price Bids from Bidders whose Technical Bids are assessed as being not substantively conforming will not be opened.


Matangi Tonga Online ref. #7208 MEIDECC, 14 -  21 March 2023