%0 Journal Article
%T Optimization Comparison of Stand-Alone and Grid-Tied Solar PV Systems in Rwanda
%A Samuel Bimenyimana
%A Godwin Norense Osarumwense Asemota
%A Paula Jeanne Ihirwe
%J Open Access Library Journal
%V 5
%N 5
%P 1-18
%@ 2333-9721
%D 2018
%I Open Access Library
%R 10.4236/oalib.1104603
%X <div style="text-align:justify;">
	<span style="line-height:1.5;">Solar power has gained great usage in electricity generation world-wide, and stand-alone is common in Rwanda. Site visits and energy audit estimates for a typical residential house in Rwamagana district, were used to cost effectively compare stand-alone and grid-tied PV systems able to supply 7.2 kWh/day, load. Algorithms design of lifetime costs and benefits were developed, to analyse total daily energy requirements using Frequentist approaches to obtain the Kullback-Liebler solution for convexity. The Frequentist inference approaches adopted for study led to optimal solution of the design problem. Results show that stand-alone PV system needs 17 modules with US$ 15,932 initial investment and 18.1 years payback period while grid-tied PV system requires 8 modules, with US$4449 investment, and 5.7 years payback. Once government adopts smart grid technology with mature [1] feed-in-tariff, grid-tied solar power systems [2] can be used to increase electricity supply in Rwanda through domestic energy producers, because of lower initial investment costs and shorter payback periods.</span>
</div>
%K Bayesian Probabilities
%K Frequentist Approach
%K Payback Period
%K Significance Criterion
%K Virtual Battery
%U http://www.oalib.com/paper/5293743