Round Tables

In recent decades, the greenhouse effects are more and more visible and are leading to increase the frequency of extreme weather events, in particular heavy snowfalls, windstorms and heat waves, even in unexpected locations. Distribution and transmission system have been developed taking into account only single faults. Since extreme weather events cause multiple faults above wide regions, the usual reliability evaluation has to be combined with a grid resilience analysis. The risk assessment has to be carried out, taking into account the climate change scenarios for the next decades through the development of tools to estimate the probability of events and their impact on the infrastructures. Similar approaches can be used to increase response and recover capabilities optimizing the resources to be engaged in terms of crews and emergency hardware. Digitalization can help to combine accurate weather forecasting, by means of weather stations, sensors on the infrastructures, together with advanced models to evaluate the impact of different weather events on the distribution system.

Panels:

1. Climate scenarios/weather forecasting/meteorological databases :
   Jeff Thomas, EPRI (USA)
   Title : “Climate READi: climate forecasts to assess grid impacts and planning for resilience improvement”
2. Models to estimate effects of extreme meteorological events on distribution systems infrastructures (heat waves, hopefully) :
   Massimo Pompili, University La Sapienza Rome, Italian Network for Energy Sustainable Transition (NEST) (Italy)
   Title : “MV underground cable joints fault model due to heat-waves events”
3. Solutions to improve resilience of distribution systems:
   Emanuele Ciapessoni, RSE (Italy)
   Title “Solutions to improve resilience of distribution systems”
4. Extreme weather event management: organization, tools and experiences :
   Shikhar Pandey, ComEd (USA)
   Title : “ComEd’s application of proposed IEEE Distribution Grid Resilience metric.”