Rwanda has just completed its first Large Dam since the genocide (traditionally defined as one over 15 metres high). The Nyabarongo Dam will become the country’s primary power station and increase Rwanda’s power generation by a third. It is arguably the first singularly big development project to be completed by president Kagame’s government, and is set to be the first of many with a further four Large Dams in the immediate pipeline and the Bugasera Airport under construction. They form part of a wider effort to build large ‘modern’ infrastructures across the country, from road improvements and increased energy production to skyscrapers in the capital Kigali. So what does this drive towards big projects entail for Rwanda? Can it tell us something about the way in which the country is run and the values of its government? This article explores aspects of Rwanda’s flagship dam project that indicate the government’s wider approach to development politics.