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In this lesson, we will learn how to describe the advantages and disadvantages of photovoltaic cells, and how to calculate the total energy output of solar panels.
A manufacturer makes a type of solar panel that has a power output of 290 W when exposed to direct sunlight. 8 of these solar panels are fitted to the roof of a house, which receives an average of 3.2 hours of direct sunlight per day over the course of a year. What is the total energy output of the solar panels on this house over the course of a year? Assume that there are 365 days in a year. Give your answer in kilowatt-hours to the nearest kilowatt-hour.
There are 5 200 houses in a town. The amount of electricity supplied to those houses every year is
kWh. A manufacturer makes a type of solar panel that has a power output of 330 W
when exposed to direct sunlight. The average number of hours of direct sunlight per day over the course of a year in the town is 2.8 hours. How many solar panels have to be fitted to the roof of each house in order to supply the entire town with the amount of electricity it needs for the year? Assume that each house must be fitted with the same number of solar panels and that energy consumption of the town is constant throughout the year. Use a value of 365 for the number of days in a year.
A manufacturer makes a type of solar panel that has a power output of
when exposed to direct sunlight. On a day in summer,
1 of these solar panels is placed in direct sunlight for
What is the total energy output of the solar panel over these 6 hours?
Give your answer in kilojoules.
Longyangxia Dam is a hydroelectric dam of the Yellow River in Qinghai province, China. Next to the dam is one of the world’s largest solar farms, with 9 km2 of photovoltaic cells.
The output of the hydroelectric generators in Longyangxia Dam and the output of the photovoltaic cells is coupled.
When the power output of the photovoltaic cells is low, more water can be allowed to flow through the dam.
This increases the power output of the dam, and so the total power output can be kept constant.
Which of the following correctly describe the advantages of this system?
The Amundsen–Scott South Pole Station is an Antarctic research station located at the South
Pole. During the Antarctic winter, the research station gets power from several generators
that run off JP-8 jet fuel. Which of the following best explains why solar panels are not
suitable for power generation during the Antarctic winter?
Agadez Weather Station is a weather station in the Sahara desert in Niger. Which of the
following correctly explain the advantages of using solar panels and a battery to power the
Photovoltaic cells are often used to power satellites. Which of the following are reasons why photovoltaic cells are chosen as the power source for satellites?
What type of current do photovoltaic cells generate?
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