Optimum Tilt Angle for Photovoltaic Solar Panels in Zomba District, Malawi

Table 1

Calibration factors for LI-COR pyranometers.

Pyranometer	Parameter	Value
LI-COR I (serial number PHY32602)	Mean a value	4.00±1.6 Wm^−2/mV
	Mean b value (calibration factor)	(1.237±0.006)×10^−1 kWm^−2/mV
LI-COR II (serial number PHY30406)	Mean a value	−3.4±2.4 Wm^−2/mV
	Mean b value (calibration factor)	(7.295 ± 0.05) × 10^−2 kWm^−2/mV
LI-COR III (serial number PHY32951)	Mean a value	−3.8±1.4 Wm^−2/m
	Mean b value (calibration factor)	(1.694±0.008)×10^−1 kWm^−2/mV