economic and social research foundation esrf mkukuta based mdgs costing for the energy sector final draft report november 2006 ________________________________________________________________________ i table of contents list tables figures v abbreviations vivii executive summary vii 1 0 introduction background 2 consultative process 3 structure overview vision mission policy objectives potentials in tanzania 4 recent developments current status electricity sub hydropower thermal plants 5 petroleum industry natural gas coal renewable other plans 6 challenges inadequate supply distribution oil development 7 regional interconnection rural electrification reaching households assessment