Design, supply and installation of the proposed battery energy storage system (BESS) — Zanzibar Energy Sector Transformation and Access Project (Tanzania)
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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
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