Babban madatsar ruwan Poubara

Madatsar ruwan Grand Poubara madatsar ruwa ce mai girman nauyi a kogin Ogooué, kimanin 15 kilometres (9.3 mi) kudu da Franceville a Gabon. Babban manufar madatsar ruwan ita ce samar da wutar lantarki ta ruwa, kuma tana tallafawa 160 megawatts (210,000 hp) tashar wutar lantarki. Tarihi Gwamnatin Gabon ta sanya hannu kan rancen dala miliyan 84 da China a shekarar 2008 domin samar da kudaden gina madatsar ruwan. Manufar ita ce samar da wata hanyar samar da wutar lantarki ta daban ga madatsar ruwan Kongou Falls don wuraren haƙar ma'adinan ƙarfe da 'yan China ke gudanarwa a Belinga. An fara gina aikin a watan Nuwamba na 2008, an karkatar da kogin a watan Nuwamba na 2010, sannan aka fara aikin tashar wutar lantarki a ranar 5 ga Agusta na 2013. Madatsar ruwan ta karkatar da kogin a kusa da magudanar ruwan Poubara inda 40 megawatts (54,000 hp) ta kai ga haka. Injinan samar da wutar lantarki na Francis suna da wutar lantarki. Gwamnatin China ce ta dauki nauyin mafi yawan madatsar ruwa da tashar wutar lantarki, kuma Sinohydro ce ta gina aikin. Tun daga shekarar 2015, madatsar ruwa ta Grand Poubara ta samar da wutar lantarki ga Kamfanin Karafa na Moanda, wato masana'antar sarrafa manganese ta farko a kasar. Manazarta