AwardedContract award
Battery energy storage system (40 MWh) at Mtoni: design, supply, installation and initial operation, Zanzibar
An official contract award has been published. EPC Feed last checked the official record on 23 October 2026.
Scope
Design, supply, installation, testing, commissioning and initial operation of a 40 MWh battery energy storage system at Mtoni under the Zanzibar Energy Sector Transformation and Access Project. Contract duration 36 months.
Contract award
- Winner
- Sieyuan Electric, China
- Signed price
- USD 16,506,978.99
- Award notified
- Award published
- Duration
- 36 months
| Bidder | Country | Evaluated price | Outcome |
|---|---|---|---|
| CCECC - XNEP | China | USD 12,256,546.65 | Evaluated |
| Sieyuan Electric | China | USD 12,421,500 | Awarded |
| HNAC Technology Company Limited | China | USD 12,462,119.58 | Evaluated |
| Power China Guiyang Engineering Co. Ltd | China | USD 14,073,175.41 | Evaluated |
| JV Eauxwel Nigeria Limited and Nidec ASI | Nigeria | USD 25,029,162.88 | Evaluated |
| Zhongtian Energy Storage Technology Co., Ltd (ZTT) ZEST | China | USD 25,823,291.92 | Evaluated |
| Tontan Project Technology Company Limited | Tanzania | Not evaluated | RejectedNon responsive |
| Novavis International | United States | Not evaluated | RejectedFailure to meet minimum technical score |
| Rimal Global Technical | Oman | Not evaluated | RejectedNon responsive |
| JV AIPEC and Spoweress Energy | China | Not evaluated | RejectedNon responsive |
| China Henan International Cooperation Group Co. Ltd (CHICO) | China | Not evaluated | RejectedNon responsive |
| Buckets Tanzania Limited | Tanzania | Not evaluated | RejectedNon responsive |
| Goldwind International Holdings | China | Not evaluated | RejectedFailure to meet minimum technical score |
| Dongfang Electric International Corporation - DEC | China | Not evaluated | RejectedNon responsive |
| JV SUMEC & CLOU | China | Not evaluated | RejectedNon responsive |
| Deltagen (Pty) Ltd | South Africa | Not evaluated | RejectedNon responsive |
Evaluated prices come from the award notice and may differ from the signed contract price. Where a procurement used rated criteria, the lowest price does not necessarily win; the notice may not publish the scores.
Official documents and links
- Contract award notice (World Bank)Award notice
- Invitation for bids (World Bank)Official notice
Sources
This page summarises the official notice; bidders must rely on the official documents. Notice an error or an update from the buyer? Tell EPC Feed.