energy production Flashcards
- Ultimately most of the energy we use today comes from __________________.
the sun
- What other forms of energy exist?
nuclear power, tidal power, geothermal power
- Most energy sources fall into two categories. What are those categories?
Renewable and non-renewable
- What might be the most obvious way to reduce the environmental impacts of energy use?
make energy production more efficient and reduce the amounts of energy wasted during its use
- Give some examples of energy saving in both the developed and developing world.
heating and cooling, aiming for net zero energy consumption building
- Compare the efficiency of electrical generation in the developing world and the developed world.
more developed in the develop. world
- What is co-generation?
production of two different type of energy from the same source
- Where is renewable energy use most significant? What source is used here?
In the developed world, hydro
- Globally, which course of energy makes the largest contribution?
fossil fuel
In addition to the environmental benefits of renewable energy, what other benefits do they have?
Development, smaller and faster innovation
- What are some of the drawbacks with renewable energies?
lack of certain resources, not very efficient
- What are the concerns with a greater reliance on nuclear energy?
there could be accident and radioactive waste
- How is nuclear energy categorized?
non-renewable
- Why has there been a considerable rejuvenation of interest in nuclear energy in recent years?
radioactivity, cancer and accident
what are pros and cons of biomass
no net emissions of carbon dioxide ( if well manage ) but higher food price and food shortage and deforestation
what are the pros and the cons of tide power
predicable and powerful, useful for protection barrages and no emissions but modify the hydrodynamic example sediment movement
what are the pros and cons of geothermal
more site-specific. can be dangerous like earthquakes, emissions to soil and water, and solid waste
- Besides the natural endowments (i.e.mountainous regions for hydropower ,or long hours of
daylight for solar) what is also necessary for renewables to become a bigger part of our energy
futures?
political actions
- Is an increase in efficiency likely to meet the increase in our energy that will most come in the
future as economics continue to increase?
no we need to decrease the demand
- Give an example of the tension that often exists between those looking to expand renewable
energy and conservationists who want to protect wildlife.
the case of Sweden
