World Bank
Design, supply and installation of the proposed battery energy storage system (BESS)
Contract Award- Awarding organisation
- World Bank13,157 World Bank awards
- Project
- Zanzibar Energy Sector Transformation and Access Project
- Location
- Tanzania172 awards in Tanzania
- Awarded
- August 28, 2026
- Award notification date
- 2026-07-14
- Winning bidder
- Sieyuan Electric Co., Ltd.
Contract price
US$16,506,979
Bid comparison
16 bids6 with a published priceSieyuan Electric Co., Ltd. won at number 2 of 6 priced bids, with 1 cheaper offer on the table, 6% below the median. Price was not the deciding factor here.Lowest bid was US$12,256,547 from CCECC - XNEP. The notice gives no reason, so this was decided on evaluation rather than price.
- 1CCECC - XNEPUS$12,256,547
- Sieyuan Electric Co., Ltd.US$12,421,500
- 3HNAC TECHNOLOGY COMPANY LIMITEDUS$12,462,120
- 4POWER CHINA GUIYANG ENGINEERING CO. LTDUS$14,073,175
- 5JV EAUXWEL NIGERIA LIMITED AND NIDEC ASIUS$25,029,163
- 6ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD (ZTT) ZESTUS$25,823,292
10 bidders with no published price
- TONTAN PROJECT TECHNOLOGY COMPANY LIMITEDRejected: Non Responsive
- NOVAVIS INTERNATIONALRejected: Failure to meet minimum technical score
- RIMAL GLOBAL TECHNICALRejected: Non Responsive
- JV AIPEC AND SPOWERESS ENERGY.Rejected: Non Responsive
- CHINA HENAN INTERNATIONAL COOPERATION GROUP CO. LTD (CHICO)Rejected: Non Responsive
- BUCKETS TANZANIA LIMITEDRejected: Non Responsive
- GOLDWIND INTERNATIONAL HOLDINGSRejected: Failure to meet minimum technical score
- DONGFANG ELECTRIC INTERNATIONAL CORPORATION - DECRejected: Non Responsive
- JV SUMEC & CLOURejected: Non Responsive
- DELTAGEN (PTY) LTDRejected: Non Responsive
MedianBars compare converted USD, so they can be read against other awards. Original amounts shown beneath.
- Lowest bid
- US$12M
- Median
- US$13M
- Highest bid
- US$26M
- Spread
- 111%
highest over lowest
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