Advancing the Adoption of Net Metering: An Economic Assessment of Grid-Tied Solar Photovoltaic Systems in Urban Homes in Ghana

Table 3

Key system design parameters and assumptions for PV system simulation.

Component	Parameter	Value	Source/remarks
Solar PV	Tilt angle	12%	Typical optimal values for Ghana are within 10% to 15%
	Panel azimuth	180 degrees south	Typical value due to the location of the study area
	Derating factor	80%	[75]
	System degradation factor	15%	[75]
Economics	Project lifetime	25 years	Typical project lifespan for similar projects in the literature
	Interest on capital	21.06%	[76]
	Inflation in energy price	9.6%	[52]