• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Pros and cons of renewable energy - wind power, solar and biomass.

Extracts from this document...

Introduction

Advantages and disadvantages of wind power A wind turbine works the opposite of a fan. Instead of using electricity to make wind, like a fan, wind turbines use wind to make electricity. The wind turns the blades, which spin a shaft, which connects to a generator and makes electricity. Advantages * The wind is free and with modern technology, it can be captured efficiently. * Once the wind turbine is built, the energy it produces does not cause green house gases or other pollutants. * Although wind turbines can be very tall each takes up only a small plot of land. This means that the land below can still be used. This is especially the case in agricultural areas as farming can still continue. * Many people find wind farms an interesting feature of the landscape. * Remote areas that are not connected to the electricity power grid can use wind turbines to produce their own supply. ...read more.

Middle

* When wind turbines are being manufactured some pollution is produced. Therefore wind power does produce some pollution. * Large wind farms are needed to provide entire communities with enough electricity. For example, the largest single turbine available today can only provide enough electricity for 475 homes, when running at full capacity. This is clearly not enough Solar power advantages and disadvantages Solar power is probably the cleanest, most viable form of renewable energy available and it can be used in several forms to help power your house. Many gardens now use solar lights or solar garden water features. Advantages * Solar energy is free although there is a cost in the building of 'collectors' and other equipment required to convert solar energy into electricity or hot water. * Solar energy does not cause pollution. However, solar collectors and other associated equipment / machines are manufactured in factories that in turn cause some pollution. ...read more.

Conclusion

However, the batteries are large and heavy and need storage space. They also need replacing from time to time. Advantages and disadvantages of biomass Biomass fuels derive from timber, agriculture and food processing wastes or from fuel crops that are specifically grown or reserved for electrical uses. Biomass fuel can also include sewage sludge and animal manure. Some biomass fuels are derived from trees. Because trees are abundant, these fuels are considered renewable. Advantages * Theoretically a renewable fuel source. * When direct combustion of plants and trees are not used to generate energy , there is barely any environmental impact. * Alcohols and other fuels produced by biomass are efficient, viable, and relatively clean-burning * Available throughout the world Disadvantages * Could contribute a great deal to global warming and particulate pollution if directly burned * Still an expensive source, both in terms of producing the biomass and converting it to alcohols * On a small scale there is most likely a loss of energy, because energy must be put in to grow the plant mass. ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Human Geography section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Human Geography essays

  1. Investigate how renewable energy and energy efficiency will contribute to a more sustainable future

    (UK Parliament Website www.parliament.uk). However, there is a concern that at the current rates of use and development, these targets may be hard to achieve at the current growth rate, with renewable sources reaching 2.25% in 2008 up from 1.8 per cent in 2007 and 1.5 per cent in 2006.

  2. Greener Forms of Generating Electricity- thermal power plants, hydro power plants and solar power ...

    Staying green and investing in these ideas will matter in the future. By burning excess fossil fuels we are creating green house gasses which are heating up the planet, thus destroying a lot of environments. (2) In Bosnia, the biggest hydro power plant produces around 170.000 cubic meters of water that reach speeds of 60 km per hour.

  1. Global warming

    Farmers fear the destructive Colorado beetle cold get more of a foothold if the weather warms. Increased summer drought Will cause stress to wetlands, crops and beach woodlands, habitats of many animals will be interrupted. A dry crop field shown in the image below.

  2. Alternative Energy

    Since we are running out on our most dependent resource for energy, we need to switch to alternate sources of energy that are renewable. Some might wonder why we still use fossil fuels instead of renewable sources even though fossil fuels harm the environment.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work