Dated March 27, 2024, this guide by the UK-Indonesia Mentari programme compiles four years of insights from constructing and implementing a small-scale off-grid centralized photovoltaic power plant in Mata Redi village, Central Sumba. It introduces a matrix to assess the quality of project feasibility studies, focusing on gender integration and inclusion aspects. Additionally, the guide offers detailed instructions and data collection tools to enhance the matrix’s evaluation process, alongside practical guidance for procurement and project implementation.