Methodology to Solve Severe Load Curtailment at Pakistan's Wind Corridor and Cost Effectively Utilizing Maximum Wind Energy

Abstract

From lightening a house to functionalizing industry energy plays a significant role. Generating energy is not the only issue but generating and then utilizing it appropriately is the main issue. From 2011, Pakistan has shifted its sight on renewable energy to cut its power starved national grid's dependency from fossil fuel power plants. Since then a number of solar parks and wind power plants have been initiated and few of them are already operational. Focusing just on wind energy, by August 2016 total six wind power plants are fully functional capable of producing 300 MW of generation as per availability of wind. But this 300 MW of wind energy is facing regular load curtailments due to overloading or unavailability of the dispatch circuits. There are ups and downs in generating energy depending upon the speed of wind. In this paper, impacts of generating energy when wind speed is normal that is 7 meter per second and when it is at maximum have been discussed and analyzed accordingly. The maximum dispatch generation capacity at the national grid is not more than to 259 MW. When the generation is a lot more than that of the capacity of lines then this extra generation is wasted deliberately. This research suggests the solution to these current circumstances at the wind corridors. Number of solutions have been introduced like constructing 220 kv grid station, upgrading existing 132 kv THT-SJW-BSK-TMK(O)-TMKR, all SLM lifted at wind corridor and connected circuit or constructing direct circuitry in between Jhampir and TM Khan Road with a capacity of 400A while the other in between Nooriabad and Jamshoro New with the capacity of 500A. After comparing and analyzing all the solutions constructing two 132kv transmission lines between Jhampir and Thatta and other between Nooriabad and Jamshoro New is the best solution.