Generac Generators Sizing Guide

Watch this short video where Generac's Scott Shepherd overviews the Generac Generators Sizing Guide. The sizing guide helps homeowners and professionals select the correct unit (typically 7.5kW to 30kW+ for homes) based on home size, electrical load, and coverage needs (essential vs. whole-house). Proper sizing involves calculating starting/running wattage for appliances and HVAC systems. Key Sizing Guidelines & Recommendations - Small Homes/Essential Circuits (7.5–11 kW): Recommended for covering lights, fridge, and small appliances. - Medium Homes (14–18 kW): Suitable for 2-3 bedroom homes requiring full coverage. - Large Homes (20–26 kW+): Designed for 4+ bedrooms, multiple HVAC units, and high-power needs. - Methodology: The Generac Power Design Pro™ tool and worksheets analyze surge vs. running wattage to ensure total load compatibility. - Pro Tip: Select a unit with 20–25% more capacity than the calculated peak load for future expansion and efficiency.