Public-private partnerships in Africa...have generally failed to provide much-needed water and electricity, a new study shows...The report, released yesterday, acknowledged successes achieved...in sectors such as telecommunications, transport, ports and eco-tourism, but said that much still needed to be done to hone an effective partnership model in water and electricity provision. [refers to Vivendi Water (now Veolia Water, part of Veolia Environnement), SAUR Services (part of Bouygues), Siza (part of Bouygues)]