Research Article

Standalone and Minigrid-Connected Solar Energy Systems for Rural Application in Rwanda: An In Situ Study

Table 5

Structure items and their expense for off-grid PV microgrid systems for the rural community.

No.ComponentRated capacityCapital cost (USD)Replacement cost (USD)O&M cost/year (USD)Lifetime (years)

1Converter (system converter)10.0 kW21,164.0016,000.008000.0015
2Batteries (generic 1 kWh lead acid)1.0 kWh each1702.001000.0060.0010
3PV (generic flat plate)10.0 kW18,500.0015,000.0020.0025