Femi-J/nigeria-grid-analysis

Data analysis of Nigeria's electricity grid: generation capacity, transmission losses, and state-level access gaps. Includes composite Nigeria Grid Performance Index (NGPI) and Plotly Dash dashboard. ## Status Log - [x] Data collection — ✅ Complete - [x] Analysis — ✅ Complete - [x] Figures — ✅ Complete (4 publication figures) - [x] Manuscript draft — ✅ Complete - [x] Internal review — ✅ Complete - [x] Journal submission — ✅ Complete - [ ] Peer review - [ ] Revision - [ ] Acceptance - [ ] Publication