Using Planning Conditions to Manage Interference - Pager Power
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Using Planning Conditions to Manage Interference

Using Planning Conditions to Manage Interference
August 27, 2019 Mike Watson

Background

Wind turbines, buildings and other tall structures can adversely affect aviation, radar and telecommunications systems. Planning Conditions can be used to allow planning permission to be granted whilst ensuring that adverse impacts are managed effectively.

planning conditions

Figure 1 Whitelee Wind Farm, Scotland had multiple radar planning conditions

Example planning condition

The planning conditions below were attached to the planning permission for the Beatrice offshore wind farm in Scotland.

  • No turbine shall be erected until the Developer has agreed a Primary Radar Mitigation Scheme (PRMS) with the Operator which has been submitted to and agreed in writing by the Scottish Ministers in order to mitigate the impact of the development on the Primary Radar Installation at Allanshill.
  • No turbine shall be erected unless and until the approved Primary Radar Mitigation Scheme has been implemented and the development shall thereafter be operated fully in accordance with such approved Scheme.

How do planning conditions work?

Planning conditions can prevent a development being built and/or operated until technical mitigation arrangements (for example a new in-fill radar) have been put in place. Typically such conditions are agreed when there is a reasonable degree of certainty that there will be a mitigation solution and the cost of designing the solution is expected to be high. This means the time and expense of designing a mitigation solution can be delayed until planning permission is secured.

Should planning conditions be used in this way?

Some developers think using planning conditions is beneficial because of the reduction in time to achieve planning permission and the reduction in risk of a planning refusal. Others want to avoid the risk of being unable to develop because the planning condition may not be dischargeable in practice. The majority of developers will consider planning conditions when there is a high likelihood of being able to discharge the condition in practice.

What sort of issues may be dealt with by planning condition?

The following technical issues can be addressed with planning conditions:

  • Radar Interference
  • Television Interference
  • Radio and Telecommunications Interference
  • Aviation Obstruction Lighting
  • Wind Turbine Shadow Flicker issues
  • Glint and Glare caused  by solar reflections
  • Potential solar heating effects
  • Potential impacts on Aviation Safety

What types of development can have technical planning conditions?

Development types include:

  • Wind Turbines
  • Wind Farms
  • Glazed Buildings and Structures
  • Tall Buildings and Structures
  • Static Solar PV Developments
  • Tracking Solar PV Developments

How are planning conditions discharged?

Usually developers write to the planning authority requesting that a condition be discharged with evidence that it has been discharged. The planning authority will typically consult the radar operator and then, if satisfied, will discharge the condition.

How can Pager Power help?

Pager Power can help assess and resolve technical planning issues. We can help developers determine whether planning conditions may be appropriate and also help with the necessary work to discharge conditions. For more information please contact us on 01787 319001.

References

https://www.gov.uk/guidance/use-of-planning-conditions
Image accreditation: https://commons.wikimedia.org/wiki/File:Whitelee_Wind_Farm_looking_west.JPG

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