Standby Generator Market Size, Share & Industry Analysis, By Fuel Type (Diesel, Gas, and Others), By Power Rating (Below 75 kVA, 75 - 375 kVA, 375 - 750 kVA, and Above 750 kVA), End-User (Mining, Oil & Gas, Construction, Residential, Marine, Manufacturing, Pharmaceuticals, Commercial, Telecom, Utility, Data Center, and Others), and Regional Forecast, 2025-2032