Tenders/Design, supply and installation of the proposed battery energy storage system (BESS)

Design, supply and installation of the proposed battery energy storage system (BESS)

This tender has been awarded

Awarded to Sieyuan Electric Co., Ltd. โ€” โ‚ฌ16,506,979

About This Opportunity

Contract Award | Project: Zanzibar Energy Sector Transformation and Access Project | Method: Request for Bids | Ref: TZ-ZECO-380710-CW-RFB

This is a works contract in the infrastructure, education and training and energy and power sectors. Located in Tanzania, Africa, this opportunity is open to firms and consortiums.

Published through WB - World Bank, a multilateral development bank that follows standardized international procurement guidelines. Projects funded by multilateral institutions are generally open to international bidders from eligible member countries for civil works in the infrastructure sector. Works contracts of this nature generally require demonstrated experience in similar infrastructure projects, adequate equipment and technical personnel, and financial capacity including bank guarantees. This contract has already been awarded. The information is published for transparency and market intelligence purposes.

Description

**Project:** Zanzibar Energy Sector Transformation and Access Project

Contract Award

Project:P169561-Zanzibar Energy Sector Transformation and Access Project
Loan/Credit/TF Info:IDA-68970
Bid/Contract Reference No:TZ-ZECO-380710-CW-RFB
Procurement Method:RFB-Request for Bids
Scope of Contract:Design, Supply, Installation, Testing, Commissioning, and Initial Operation of 40 MWh Battery Energy Storage System (BESS) in Mtoni.
Notice Version No:0


Date Notification of Award Issued
(YYYY/MM/DD)
2026/07/14
Duration of Contract

36 Month(s)
Awarded Bidder(s):
Sieyuan Electric Co., Ltd. (339720)
No.3399, Huaning Road, Minhang District, Shanghai, CN, 201108
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD 12421500.00

Signed Contract price
USD 16506978.99

Beneficial Ownership Details

Sieyuan Electric Co., Ltd. (339720)
Form Date: 03-JUL-26



Summary of Reason
le soumissionnaire dclare qu'il n'y a aucun bnficiaire effectif qui remplisse l'une au moins des conditions

Evaluated Bidder(s):
HNAC TECHNOLOGY COMPANY LIMITED (957547)
No 609, LuSong Rd, LuGu, Changsha, Hunan Province, P.R. China
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD 12462119.58


CCECC - XNEP (990202)
No.4, Beifengwo, Haidian District, Beijing, China
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD 12256546.65


JV EAUXWEL NIGERIA LIMITED AND NIDEC ASI (990115)
Eauxwell Nigeria Limited-273A Kofo Abayomi Street, Victoria Island, Lagos Nigeria
Country: Nigeria

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD 25029162.88


POWER CHINA GUIYANG ENGINEERING CO. LTD (990123)
No.16, Xingqian Road, Guanshanhu District, Guiyang City, Guizhou Province, P.R. China
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD 14073175.41


ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD (ZTT) ZEST (990121)
No. 36 Hongxing East Road, Nantong Economic and Technical Development Zone, Nantong City, Jiangsu Province, P.R. China
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD 25823291.92


Rejected Bidder(s):
TONTAN PROJECT TECHNOLOGY COMPANY LIMITED (993288)
P.O. Box 10848, Plot 119, Mikocheni Warioba, Dar es Salaam, Tanzania
Country: Tanzania

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


NOVAVIS INTERNATIONAL (1001210)
401 Sonterra BLVD San Antonio TX 78258, United States of America
Country: United States

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Failure to meet minimum technical score


RIMAL GLOBAL TECHNICAL (990118)
Office No-509, 5th Floor,Al-Nahda Tower-2, Azaiba Oman
Country: Oman

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


JV AIPEC AND SPOWERESS ENERGY. (990117)
AVIC-INTL catic apartment Oysterbay, P.O.BOX 11600 Toure Drive, Dar es Salaam, Tanzania
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


CHINA HENAN INTERNATIONAL COOPERATION GROUP CO. LTD (CHICO) (365356)
Plot No. 9 Ethiopia Drive/Crescent Oysterbay, P.O. Box 75026, Dar es Salaam, TanzaniaMobile: +255 (22) 2601777 +255 (22) 2601666
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


BUCKETS TANZANIA LIMITED (990104)
P. O. Box 105920 Dar es Salaam info@buckets.co.tz
Country: Tanzania

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


GOLDWIND INTERNATIONAL HOLDINGS (990126)
Flat/Rm 1701 17/F, Honest Building, 9-11 Leighton Road, Causeway Bay HK
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Failure to meet minimum technical score


DONGFANG ELECTRIC INTERNATIONAL CORPORATION - DEC (990024)
. 18, Xixin Avenue, High Zone West Park, Chengdu, China/Email: chenchunxin@dongfang.com.cn
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


JV SUMEC & CLOU (990023)
12/F, SUMEC Building, Changjiang Road, City of Nanjing, China
Country: China

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


DELTAGEN (PTY) LTD (990111)
308 Renaissance Plaza , 3rd Floor SuiteHaile Selassie Rd , Dar Es Salaam , Tanzania
Country: South Africa

Evaluation Scores


Bid Price at Opening
USD

Evaluated Bid Price
USD

Reason for Rejection
Non Responsive


Data provenance

This notice is sourced from WB - World Bank and was originally published on August 28, 2026. Last refreshed 2 days ago. Reference: OP00465536. BidsFactory mirrors official procurement notices and links back to the source for full legal text.

About Zanzibar Energy Sector Transformation and Access Project

Zanzibar Energy Sector Transformation and Access Project has issued 7 procurement notices on BidsFactory, including 0 currently open and 7 awarded contracts. Activity concentrates in Education & Training, Energy & Power, and Finance & Banking. All notices are published for Tanzania. Notices are distributed via WB - World Bank. Most recent publication: August 28, 2026.

Frequently asked questions about this tender

Who is the contracting authority?

This notice was issued by Zanzibar Energy Sector Transformation and Access Project in Tanzania. The authority is responsible for evaluating bids, awarding the contract, and managing performance.

What type of contract is this?

This is a Works contract in the Infrastructure sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.

How much was the contract awarded for?

Sieyuan Electric Co., Ltd. was awarded the contract for โ‚ฌ16,506,979. The figure reflects the value disclosed by the contracting authority in the award notice.

Where will the contract be performed?

The contract is for delivery in Tanzania. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.

How can I submit a bid?

Visit WB - World Bank to access the full notice, required documents, and submission instructions. Quote reference OP00465536 when communicating with the contracting authority.

Is this tender still open?

No โ€” the contract has already been awarded to Sieyuan Electric Co., Ltd.. The award notice is archived on BidsFactory for transparency and market intelligence.

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Key Details

Contract Type
Works
Eligibility
Firms / Consortiums
Language
English
Reference
OP00465536

Source

w
world_bank
Official Source

Contracting Authority

Zanzibar Energy Sector Transformation and Access Project
๐Ÿ‡น๐Ÿ‡ฟTanzania
Project: P169561

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