Figure 2: Example modelling output. This is where the grey areas come in. There is some guidance [1] , [2] on what needs to be considered, and what the limits are. However, these are not set in stone and guidance varies from country to county. The best approach is to quantify the effects and understand the impacts relative to the guidance in order to address the issue responsibly.
The most practical solutions to shadow flicker issues are set out below. The best strategy will depend on the constraints for each individual development. It is advisable to consider shadow flicker effects sooner rather than later. This allows the issues to be understood ahead of time and also maximises potential mitigation options at the design phase.
It is recommended that detailed modelling is carried out for any proposed turbines and for the results to be evaluated comprehensively. This can negatively impact residents and their opinion of wind turbines.
As a result, authorities responsible for shadow impact emission control have to ensure that residents are not disturbed by shadow flicker. A shadow flicker protection system provides a technical solution to this problem. Such systems have been employed by leading turbine manufacturers for many years.
It ensures compliance with all regulations, including sound protection and protection of endangered species such as bats.
Additionally, it safeguards against any charges, as the system records every single shutdown induced by the module. And the device would need to be small and enough to sit in or adjacent to the garden of residential property for weeks or months at a time.
These challenges were address with the use of modern IoT technology. The product was built around a low energy industrial computer with extended temperature components. A multiband modem with roaming SIM enabled the transmission of data from any location. In each case, the causes of flicker were identified and resolved ensuring that wind farms remained compliant with planning conditions and residents concerns were addressed.
Skip to content. The advantages of at-property flicker monitoring Since , Visualwind have been helping wind farm operators to investigate and resolve shadow flicker issues by recording the flicker that occurs at properties. Shadow flicker clearly shows up in the high resolution light intensity data With the data from WindComply, wind operators are able to identity the causes of flicker and take steps to resolve the issues. Making use of modern IoT technology for long term remote monitoring For Visualwind, the development of a new monitoring solution for shadow flicker presented various challenges.
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