Off-grid renewable energy solutions will be key to achieve universal access to electricity in Sub-Saharan Africa. It is estimated that between 60-70% of the future electricity supply will come from off-grid systems (both isolated and mini-grids). Mini-grid development is closely tied to national policy decisions and regulatory frameworks. A revision of the power system framework traditionally based on a centralised model is required to create an enabling policy framework for large scale uptake of the decentralised mini-grid sector.