2018 AP ENVIRONMENTAL SCIENCE FREE-RESPONSE QUESTIONS wind farm project using tu
ID: 299621 • Letter: 2
Question
2018 AP ENVIRONMENTAL SCIENCE FREE-RESPONSE QUESTIONS wind farm project using turbines to generate electricity is to be built along the Allantic coas of he United States. It will be located about 13 km from the coast in water with an average depth of 10 m. (a) Describe one environmental benefit associated with an offshore wind project. (b) Identify and describe one potential economic effect of an offshore wind project. (c) Describe one additional way, other than wind power, that oceans can provide renewable energy for the generation of electricity The project will consist of 200 wind turbines, each with a capacity of 4 megawatts (MW). Each turbine coss S1.2 million to build. Electrical demand in the area to be served by the project is expected to be 2.0x 1of MW per year. (d) Calculate how much electricity (in MWh) the wind project needs to generate per year in order to provide 80% of the annual electrical demand in the service area. Show all work. in the service area pay $0.20/k Wh for electricity. Calculate how much revenue will be produced ifthe wind turbines provide 80% of the annual electrical demand in the service area. Show all work. Assuming all turbines are operating, calculate how many hours the wind turbines must operate to provide 80% of the annual electrical demand in the service area. Show all work. (e) Customers (D)Explanation / Answer
answer 2 a. Off-shore wind farms has many same advantages as land wind farms. They provide renewable energy, they do not consume water,They provide domestic enery source. They do not emit pollutants or green house gasses.
answer 2 b. Many Coastal areas have high energy demand. Half of the united states population lives in coastal areas with concentration in major cities. Offshore energy farms will help in meeting those energy demands
answer 2c Ocean currents are the other source of electricity production other than offshore wind mills. A turbine is built on the ocean surface which rotates with strong ocean currents producing electricity.
answer 2d. Given electricity demand of the service area is 2.0*106 MWh
80% of the demand will be = 1.6*106 MWh
This is the elctricity the wind farm must generate per year to meet 80% of the service area's energy demand.
answer 2e.
80% of the demand = 1.6*106 = 16*108 kWh
rate =0.20 dollars per kWh
therefore total revenue= 32*107 dollars= 320 million dollars
answer 2f. capacity of each turbine is 4 MW and there are 200 turbines.
therefore, total capacity is 4*200= 800MW
hours required for the turbines to work if all of the turbines are at there full capacity
1600000/800= 2000 hours
thus, the turbines working 2000 hours per year will meet 80% electricity needs of the service area.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.