Preferred Abstract (Original):
Hybrid power systems are based on renewable energy
sources and especially on photovoltaic and wind energy systems.
Software package is used to analyze measuring data for wind
speed and solar radiation of two locations in Palestine
(Ramallah and Nablus). Results of analysis illustrate that
energy density available in wind for Ramallah site is about 2008
kWh/m2.year,while it is 927 kwh/m2.year for Nablus site.The
daily average of solar radiation intensity on horizontal surface
is about 5.4 kWh/m2 .day. A Matlab software package is used to
simulate different scenarios of operation of the hybrid system
by making energy balance calculations on an hourly basis for
each of the 8760 hours in a year. This enable to choose the
appropriate sizes of the different components for the most
optimum scenario. The optimization is based on cost of
generation. Results of the simulation illustrate that the most
economic scenario is the scenario that uses a hybrid system
mainly dependent on wind. Cost of energy (COE) in this
scenario is 1.28 NIS/kWh(`0.35 $/kWh). Other scenarios
dependent on wind-diesel hybrid system, PV-diesel hybrid
system, wind stand-alone system, PV stand-alone system, or
diesel only, give results of COE greater than this value. It was
concluded that none of the hybrid system scenarios analyzed
could be justified to replace purchasing of electricity from the
grid where the COE is 0.70 NIS/kWh(0.19 $/kWh)