Fig. 4: LCOE for mini-grids in refugee settlements: variation of technical and economic parameters.
From: Planning sustainable electricity solutions for refugee settlements in sub-Saharan Africa
a, Discount rate (r) sensitivity analysis. LCOE values per settlement of fully renewable mini-grids (tier 2 residential demand scenario) for three different discount rates 5%, 10% (reference value) and 12%. b, Comparing LCOE of fully renewable mini-grids and PV/diesel hybrid mini-grids. In light green the difference between the LCOE values of fully renewables minus the LCOE values of PV/diesel hybrid mini-grids (country-specific diesel prices and discount rate of 10%). The differences in LCOE show a high degree of dispersion (spread box) and higher skewness in the upper values than lower values and also high variability outside the upper quartiles (whiskers) due to the strong influence of the country-specific diesel prices62. In green (fully renewable PV mini-grids) the difference between LCOE values were calculated with a uniform discount rate (10%) minus the LCOE values calculated with country-specific discount rates. In dark green (for PV/diesel hybrid mini-grids) the difference between LCOE values were calculated with a uniform discount rate (10%) minus the LCOE values calculated with country-specific discount rates and country-specific diesel prices).
