Methodological Evaluation of Off-Grid Communities Systems in Ghana Using Quasi-Experimental Design to Assess System Reliability

Off-grid communities in Ghana face challenges in accessing reliable energy sources, necessitating robust system designs to ensure continuous power supply. A mixed-methods approach combining quantitative data analysis with qualitative interviews was employed. The quasi-experimental design involved comparing pre- and post-system implementation data to assess changes in energy availability, reliability, and user satisfaction. The analysis revealed a significant increase (p<0.05) of 20% in system uptime after the deployment of solar-powered systems compared to baseline conditions. This study contributes new insights into understanding factors influencing off-grid community energy reliability, particularly in Ghanaian contexts. Further research should explore long-term sustainability and cost-effectiveness of these systems for wider implementation. Model estimation used $\hat{\theta}=argmin_{\theta}\sum_i\ell(y_i,f_\theta(x_i))+\lambda\lVert\theta\rVert_2^2$, with performance evaluated using out-of-sample error.