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25GW of distributed wind on the UK Electricity System  

Author:  | Grid, U.K.

  • The UK government aims to increase renewable energy provision into the
    into the UK national electricity grid. They have a target of 15% electrical
    energy by 2015 and an aspiration of 20% by 2020
  • Wind is an uncontrolled energy resource, it blows when it wants.
  • Integrating this level of wind into a highly controlled grid system brings new
    challenges
  • EoN Netz in Germany and Avista Utilities in California have both declared
    that managing power variations from wind is problematic
  • This study has assessed the impact 25 GW of wind will have on the grid.
    This represents 16% of energy at a Capacity Factor of 30%
  • In particular the power variations of a distributed wind fleet is assessed and
    found to be highly volatile, combining large magnitudes of power fluctuation and high rates of change
  • To balance the grid, other generators will be required to vary output, reducing the opportunity for other renewable generators to supply electricity

Download original document: “25GW of distributed wind on the UK electricity system

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