Training: Certification G98/G99 – Compliance without the confusion

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The UK’s Grid certification is changing. Current G83 and G59/3 are going to be replaced by G98 and G99 respectively. The change comes from a European RFG directive and affects all EU countries.
The application form has changed and there are various additional technical considerations for designers. G98 and G99 set out all of the technical requirements that you will need to comply with from 27th April 2019.


• SMA’s compliance with G98/99
• Run through of the G99 application form
• Differentiating between the bands of generation (A-D)
• Technical requirements based on each band
• DNO interfaces to power plant for constraints
• Limited Frequency sensitive mode information

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