Least-cost electrification analysis for Benin (demand modelling, LCOE comparison, and investment prioritisation for unelectrified settlements)
# ⚡ Benin Least-Cost Electrification Analysis
> A satellite-enriched, least-cost electrification model for **16,273 unelectrified settlements**
> across Benin, West Africa — identifying the optimal technology and financing model for
> 3.9 million people currently living without electricity.
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## 📋 Table of Contents
- Overview
- Key Findings
- Project Structure
- Data Sources
- Methodology
- Demand Estimation
- Technology Options & Cost Model
- Least-Cost Decision Logic
- Investment Prioritisation
- Sensitivity Analysis
- Assumptions
- Outputs
- How to Run
- Limitations & Future Work
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## Overview
Benin has a rural electrification rate of approximately **13%** — one of the lowest in West Africa.
Over **3.9 million people** live without any electricity access, concentrated in remote settlements
far from the existing medium-voltage (MV) grid. The state utility SBEE is insolvent, importing
95% of national power from neighbouring countries.
This analysis implements a **least-cost electrification model** that:
1. Estimates electricity demand for each unelectrified settlement over a **15-year planning horizon (2025–2040)**
2. Calculates the Levelised Cost of Energy (**LCOE**) for three technology options per settlement
3. Assigns the **least-cost technology** with a productive-use upgrade rule grounded in VIDA's methodology
4. Incorporates **Relative Wealth Index** to map each settlement to a realistic financing model
5. Scores and ranks all 16,273 settlements for **investment prioritisation**
6. Tests **four cost scenarios** to assess recommendation robustness
The model is enriched with **seven Google Earth Engine (GEE) satellite layers** — solar radiation,
nighttime lights, land cover, terrain slope, vegetation index (NDVI), population density and rainfall —
extracted at point level for every unelectrified settlement centroid. This makes the model spatially
precise in a way that national-average approaches cannot achieve.
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## Key Findings
| Metr …