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How Offshore Wind Farms Contribute to Energy Security

Waste Management Integrated Skills

Power stations produce approximately one-third of our country’s CO2 emissions. With our energy demand now higher than ever before, and the UK’s commitments to reducing CO2 output, electricity generation in non-polluting ways is a top priority.

Wind power remains one of the most economically-viable sources of renewable electricity in this country. It is also an energy source that will help us to meet our 2020 target: to have 15% of our energy needs provided by renewable sources. Indeed, with such an urgent response being demanded to the issue of climate change, we must use as many renewable resources as possible in as short a time as possible. In the wide range of available renewable energy technologies that exist, wind is the most well-established.

What is Energy Security?

Energy security is defined as an uninterrupted availability of affordable energy sources. However, the concept of energy security involves both long and short-term measures. Long-term energy security involves long-term investment into the supply of energy, while short-term energy security deals with ensuring the energy system is able to react to any sudden change in the balance between energy supply and demand.

Why Wind?

Wind is one of the most effective and efficient ways to cut carbon emissions. The great thing about wind turbines is that their production of energy well exceeds that required to manufacture them. On average, a wind turbine will generate 27% of its maximum output over one year. When several turbines are present and working, they will generate electricity up to 80% of the time, converting power to electricity without wasting any heat, such as is the case with fossil fuel plants.

It’s Already Supplying us with Electricity

Offshore wind power currently supplies the UK with 5% of its net electricity. A 5GW wind farm network provides enough electricity each year to power over 3.5 million homes. At current levels, each 1GW of installed offshore wind will supply an additional 1% of electricity in the UK. There is an estimated 10GW of installed offshore wind planned to be in place for 2020. If reached, 10% of the electricity in this country will be supplied by wind.

Wind Turbine Installation and Capacity is Growing

Just ten years ago, there were only 62 wind turbines installed offshore, providing just 124 MW of energy. Now, there are over 1,450 turbines installed and over 5,000MW of energy being produced. The technology has advanced with time as well, which has served to increase the capacity of these turbines from 2 to 3.5 MW each.

Should technology continue to evolve and wind turbine capacity increase as expected, the next generation of wind turbines to be installed between now and 2020 will each have 7MW capacity, which is enough power for 5,000 homes. An example of the latest to be built is Rampion, off the Sussex Coast in Southern England. The Rampion wind farm is expected to be completed in 2018 at a cost of £1.3 billion.

Contracts and Footprint

The 2020 deadline to reduce carbon emissions and increase energy output from renewable sources has seen many projects already having firm contracts in place to get building in time to meet the deadline. In total, the UK’s offshore wind farms occupy only 0.1% of the UK’s Exclusive Economic Zone. An individual turbine in an offshore wind farm’s footprint is approximately 15 square metres.

Currently, offshore wind farms are offsetting over 6 million tonnes of CO2. By 2020, it is estimated that offshore wind will be offsetting up to 13 million tonnes of CO2 each year.

Myths

One myth is that wind power won’t be enough to replace all the fossil fuel power stations in the UK. However, this is happening gradually, partly due to EU emissions legislation and the simple fact that the power stations have reached old age. There is much speculation regarding the impact of Brexit on the offshore wind farm sector but one thing is for sure, governments of all persuasions will continue to agonise over energy security for the UK post Brexit.

Can climate change really be offset by wind farms? Perhaps. Not only do wind farms not generate waste products or greenhouse gases, but unlike fossil fuels, wind energy is renewable. In addition, some wind energy supporters state that every installed MW of wind allows approximately £100,000 to stay in a community, thanks to the jobs it creates.

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About Integrated Skills Limited
Integrated Skills, operating out of Romsey near Southampton, is a specialist provider of routing and route optimisation software, smartphone & tablet solutions, environmental management software, highways management software as well as environmental consultancy in the following sectors:

  • Environmental service operations
  • Highways service operations
  • Parcel & post
  • Utilities
  • Logistics
  • Newspaper deliveries
ISL is the leading partner of RouteSmart Technologies Inc.™ for high density, door-by-door and street-by-street route optimisation software

ISL is a partner of ESRI for the ArcGIS platform.

For further information contact info@integrated-skills.com.

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