“…In general, OGRES are either: (i) conventional (e.g., portable diesel generators, firewood), or (ii) renewable energy systems (e.g., wind, hydro, and solar power). Basic EWS can either be: (i) indoor systems (e.g., radio, television, phone, computer connected to the internet), (ii) outdoor systems (e.g., sirens, lights, LED signs), or (iii) portable/other (e.g., smartphone, tablet) (Schismenos et al 2020 ).…”