The mini grid sector in Nigeria started to develop only recently. The study focuses on mini grids defined as small, privately-owned and operated systems with generation of up to 10 megawatts (MW) capacity and a network that distributes power to several customers. The report is to provide a cross-country comparison of these topics: it examines side by side how each of the countries studied have responded to a specific regulatory question, and presents a decision-tree approach to developing regulatory frameworks for mini grids. This document is structured as follows: (i) Section 1 starts with brief introduction; (ii) Section 2 has brief description of the context of the country; (iii) Section 3 sets out an overview of the power sector; (iv) Section 4 examines the main aspects of the policy setting for mini grids; (v) Section 5 surveys technologies and business models used in the mini grids sector; (vi) Section 6 explains the process to authorize mini grid operators; (vii) Section 7 assesses technical and service standards for mini grids; (viii) Section 8 explains tariff setting, financing, and subsidies; (ix) Section 9 describes handling the relationship with the main grid; and (x) Section 10 concludes with a summary of lessons learnt from the experience of the country.