Power Rental Market Size, Share & COVID-19 Impact Analysis, By Power Rating (Below 75 kVA, 75-375 kVA, 375-750 kVA and Above 750 kVA), By Fuel Type (Diesel, Gas, and Others), By Application (Continuous Load, Standby Load, and Peak Load), By End-user (Mining, Construction, Utility, Events, Manufacturing, Oil & Gas, and Others) and Regional Forecast, 2021-2028