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|Title: ||OPTIMAL POWER GENERATION EXPANSION PLANNING FOR ETHIOPIAN ELECTRIC POWER SYSTEM|
|Authors: ||Girmaw, Teshager|
|Advisors: ||Prof. Wolde-Ghiorgis Woldemariam|
|Copyright: ||Jul-2011 |
|Date Added: ||4-May-2012 |
|Abstract: ||This thesis presents an optimal power generation expansion planning model that considers the
growth of fuel prices and its fluctuation, power risks, benefits of carbon-trading in generation
expansion decision. The developed model is applied to Ethiopian Electric Power System for ten
years in the future.
In Ethiopian electric power system, the electric demand has been running ahead of supply. In
addition, the growth of fuel price can affect the country economy. Moreover, since the dominant
energy consumption is covered by firewood and charcoal (both take a share of 78% of national
energy balance), the environmental degradation and deforestation is being continually increased.
Therefore, to minimize these problems, a multi-objective model preceded by electric demand
forecasting is developed. Attributes, which are considered in the work, include investment and
generation cost of the power generating units, the environmental impacts, the amount of imported
fuels and carbon-trading benefit.
The model is simulated by written code in MATLAB work space. The MATLAB code simulates
the model to outcome the generation of each power plant at minimized cost incurred for building
the power plants, production of electric energy and fuel to be imported.
The forecasted demand shows that the average demand annual growth rate is 34.78% by
scenario-1 and 31.98% by scenario-2. EEPCo plan is annually deviated from the forecasted
values by an average of 32% and 27% with respect to scenario-1 and scenario-2 respectively.
The investment and generation cost expended is an average of 0.0112 USD to produce a kWh
electric energy for extra power generation in case of carbon trade consideration in generation
expansion planning. It is very low compared to the cost of an average of 0.111 USD to produce a
kWh electric energy by regular approach like model-2. Oil fuel for power plants and cooking in
urban areas comes to nil in the proposed planning periods.|
|Appears in:||Thesis - Electrical Power Engineering |
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