38 Questions
Which type of sustainable energy source uses the energy of the sun to generate thermal or electrical energy?
Solar energy
What is the main reason why wind turbines are not always the most interesting option for land use?
High initial investment is required
What is a potential issue with the production of solar panels?
It is difficult to recycle them
What is one of the significant challenges facing sustainable energy sources like solar and wind power?
Their availability is dependent on natural factors
What is a common feature of wind turbines and geothermal energy in terms of environmental impact?
They disturb landscapes and communities
What makes countries with a large reserve of fossil fuels less likely to invest in renewable energy?
Significant investments already made in traditional energy sources
What technique involves using mirrors to concentrate the power of the sun to heat large amounts of water in order to produce steam for powering a steam engine?
Concentrating solar power
What is the main challenge facing the widespread use of solar power?
Dependence on natural factors like wind speed and direction
What has hindered the recycling of solar panels?
The complexity and cost involved in recycling solar panels
What is the main difference between sustainable energy management and renewable energy management?
Sustainable energy management focuses on long-term environmental impact, while renewable energy management focuses on short-term impact.
What negative impact does extraction and use of fossil fuels have on society?
Increased CO2 emissions
Why does burning fossil fuels lead to huge CO2 emissions?
Because they are formed from organic matter and release carbon when burned
What is a characteristic of renewable energy sources like sun, water, and wind?
They decrease or have no pollution during the energy-creating process
What differentiates renewable energy sources from fossil fuels?
Fossil fuels replenish in the short term
Why are most renewable energy sources available everywhere?
Because differences exist due to geographical reasons
What is a common characteristic of fossil fuels such as coal, gas, and oil?
Non-renewable nature
What is one of the negative impacts of coal mining and oil/gas extraction?
Increased CO2 emissions
What is a characteristic of fossil fuels that leads to political tension?
They are often found only in specific parts of the world
What contributes to decreased or even no pollution from the energy-creating process of renewable energy sources?
Decreased or no pollution during the energy-creating process
What do renewable energy certificates allow companies to do?
Transform the energy they buy into green energy
What is the purpose of carbon offsets schemes?
To compensate for carbon emissions
What is one of the key factors to consider when making decisions for investments in sustainable energy?
The geographical location of the company
What is a recommended step to integrate energy into a company's vision and operations?
Integrate energy into the company's vision and operations
What is the purpose of waste-to-energy plants like Amager Bakke in Copenhagen?
To reduce the amount of waste and need for landfill
What is the main function of district energy systems?
To produce district heating for residential areas
What is one challenge faced by the waste-to-energy plant in Copenhagen?
Importing waste from other countries
Why does Copenhagen want to achieve its targets using wind and biomass as renewable energy sources?
Because wind and biomass have lower environmental impact than other sources
Why is it important for companies to track their energy usage?
To identify opportunities for energy efficiency improvements
How do power purchase agreements (PPAs) benefit companies?
By offering long-term contracts with electricity generators
What percentage of global energy production is believed to be retrievable from geothermal energy?
8%
Why is the initial investment for geothermal energy considered high?
The process of retrieving geothermal energy releases gases and fluids that might contain low levels of toxins
What is the primary disadvantage of using hydropower as a sustainable energy source?
Creates floods or droughts by changing the natural flow of water
Why is cutting trees not considered sustainable when using biomass for fuel?
It takes a long time for trees to grow and sequester CO2
What is the main goal of the European Energy Union?
To create an integrated energy market
What does a green energy tariff mean for consumers?
The energy supplier promises to supply (part of) the energy with green energy from renewable sources
What do renewable energy certificates represent?
The social and environmental value generated by renewable power sources
What does the European Commission propose as part of the European Green Deal?
To raise the target for greenhouse gas emissions reduction to 55% from 1990 levels
Why have businesses been driven to look into renewable and sustainable energy in the past decade?
Due to issues concerning their energy management
Test your knowledge about the mainstream domestic applications and global potential of geothermal energy, including its use in heat pumps, hot water reservoirs, and its impact on reducing CO2 emissions. Explore the feasibility and benefits of geothermal energy in various regions.
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