Photovoltaic Energy

What is solar cell efficiency?

• The measure of how much sunlight a solar cell can convert into heat.

• The measure of how much sunlight a solar cell can convert into sound.

• The measure of how much sunlight a solar cell can convert into light.

• The measure of how much sunlight a solar cell can convert into usable electricity.

Name one advantage of solar energy.

• Renewable

• Expensive

• Limited supply

• Polluting

What is one disadvantage of photovoltaic energy?

• High initial cost

• Dependent on sunlight

• Limited efficiency

• Requires large land area

How is solar energy stored?

• Solar energy can be stored in batteries or converted into other forms of energy such as heat or electricity.

• Solar energy is stored in the form of light waves.

• Solar energy is stored in the atmosphere.

• Solar energy is stored in underground reservoirs.

What is the efficiency of a typical silicon solar cell?

• 30-40%

• 50-60%

• 15-20%

• 10-15%

What are the environmental benefits of solar energy?

• Solar energy has several environmental benefits, including being a renewable source of energy, reducing greenhouse gas emissions, reducing air pollution, and preserving natural habitats.

• Solar energy increases water pollution.

• Solar energy depletes natural resources and harms ecosystems.

• Solar energy contributes to deforestation and loss of biodiversity.

What are the economic benefits of solar energy?

• Solar energy has several economic benefits such as reducing electricity bills, providing a source of income, creating jobs, and stimulating local economic development.

• Solar energy does not contribute to job creation or economic development.

• Solar energy is expensive and not cost-effective.

• Solar energy has no economic benefits.

What are the limitations of photovoltaic energy?

• High initial costs, intermittent power generation, dependence on sunlight, and the need for large land areas for installation.

• Low efficiency, limited lifespan of solar panels, environmental impact of manufacturing, and limited energy storage capacity.

What are the different methods of solar energy storage?

• batteries, pumped hydro storage, thermal energy storage, and hydrogen production

• compressed air energy storage, flywheel energy storage, molten salt storage

What is the role of batteries in solar energy storage?

• Batteries are used to generate solar energy.

• Batteries convert solar energy into electricity.

• Batteries are not necessary for solar energy storage.

• Batteries store excess energy for later use.