Global Generator Market Size study, by Type (Diesel, Gas), by Application (Standby, Peak Shaving, Continuous), by Power Rating (<100 KVA, 100-350 KVA, 350-1000-2500 KVA, 2500-5000 KVA, >5000 KVA), by End-Use (Residential, Commercial, Industrial) and Regional Forecasts 2020-2027