You have been asked to design a renewable energy system for a remote community which requires...

 

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You have been asked to design a renewable energy system for a remote community which requires 1 MW of power from 7am to 10am and 4pm to 8pm. The power requirement for the rest of the day is 500 kW. You have access to horizontal axis wind turbines, micro-turbines and photovoltaic panels, each with the properties below. You may also use batteries. Assume an average wind speed of 8 m/s for 12 hours (varying) each day, and 6 hours of direct sunlight (solar panels at maximum power) between 11am and 5pm. Wind turbines: rotor diameter of 10 m, a power coefficient of 0.4, and a combined efficiency of 0.85. The air density is 1.2 kg/m. The levelised cost of energy for the wind system is $100/MWh. Micro-hydro turbines: The total available volumetric flow rate of the water to the community is 500L/s, head height = 100m. The maximum power of each micro-hydro turbine is 50kW. Assume the efficiency of each micro-turbine is 30%. Assume g = 10 m/s and that the water density is 1000 kg/m. The levelised cost of energy for the hydro system is $120/MWh. You have been asked to design a renewable energy system for a remote community which requires 1 MW of power from 7am to 10am and 4pm to 8pm. The power requirement for the rest of the day is 500 kW. You have access to horizontal axis wind turbines, micro-turbines and photovoltaic panels, each with the properties below. You may also use batteries. Assume an average wind speed of 8 m/s for 12 hours (varying) each day, and 6 hours of direct sunlight (solar panels at maximum power) between 11am and 5pm. Wind turbines: rotor diameter of 10 m, a power coefficient of 0.4, and a combined efficiency of 0.85. The air density is 1.2 kg/m. The levelised cost of energy for the wind system is $100/MWh. Micro-hydro turbines: The total available volumetric flow rate of the water to the community is 500L/s, head height = 100m. The maximum power of each micro-hydro turbine is 50kW. Assume the efficiency of each micro-turbine is 30%. Assume g = 10 m/s and that the water density is 1000 kg/m. The levelised cost of energy for the hydro system is $120/MWh.

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To design this renewable energy system we need to consider the power requirements of the community and the potential power output from each of the renewable energy sources provided wind turbines micro... View the full answer