الخلاصة:
ABSTRACT
Among the types of solar systems, the photovoltaic (PV) systems
become more widely used and widespread. However, there are some
factors and requirements must be taken into account when installing and
operating these systems. The temperature, dust and shade are considered
the most important factors that negatively on the power production of PV
system. While, increasing the self-consumption of solar energy to reach the
self-sufficiency for PV system is the main goal in achieving the optimal use
of the PV systems. Therefore, this study was divided into two parts. The
first part was dealt with an experimental investigation to studay the effect
of temperature and dust on the PV module by fabricating two twin PV
systems. While, HOMMER software was used in the second part to
increase the self-consumption of solar energy to reach the self-sufficiency
for PV system by sizing the number of batteries and by suggesting fuel cell
(FC) as another storage unit. The experimental results showed that the
maximum temperature of the dirty PV module was recorded 46.5 °C at 28th
February as compared with the clean module that recorded 49 °C. The
influence of accumulating the dust on the PV module results decreasing its
energy production by 9%. On the other side, the results of HOMMER
software showed that the self-sufficiency was achieved in third of June
2021, first of October 2021 and first of April 2022 at four battery number,
while in first of January 2022 at eight battery number respectively with
self-consumption about 14,13 kWh, 9.88 kWh, 21.28 kWh and 13.72 kWh.
In addition, the largest energy provided by FC was recorded 29% from the
required load. Furthermore, the self-consumption of energy was increase
from 77.64% to 98.72% when the capacity of FC changed from 0.5 kW to
2.5 kW.
