Generator Sizing Guide: How to Choose the Right Capacity for Your Needs

Buying a generator is a smart investment for any home or business worried about maintaining a reliable power supply. But if you’re not experienced with generators, then it can be difficult to decide what size of standby generator you need. 

The team at Simply Generators have put together this quick guide on generator sizing so you can find the best model for your requirements. This information will help you determine the best capacity for your home, business, or industrial needs.

Why Generator Sizing Matters

Proper generator sizing is critical to ensure that your generator can handle the power demands of your appliances or equipment without overloading. Undersized generators can fail to provide enough power. Oversized units can be inefficient and costly.

Understanding Generator Capacity

Generator capacity is typically measured in kilowatts (kW) or kilovolt-amperes (kVA). It indicates the maximum amount of power the generator can supply. It’s essential to choose a generator that can handle both the starting and running loads of your devices.

How to Determine Your Power Requirements

Start by listing all the devices you need to power during an outage. Add their wattage and account for any surge power needed to start motor-driven appliances. This total will give you a clear idea of the generator size you require.

Factors to Consider

Consider factors such as the duration of power outages, the type of fuel available, and the generator's location. All of these can influence the generator’s capacity and suitability.

Common Generator Sizes and Applications

For home use, a 5-10 kW generator is typically sufficient, while larger businesses may need 30-100 kW generators. Industrial applications often require much larger capacities.

When to Seek Expert Help

If you’re unsure about sizing, it’s always best to consult a professional. At Simply Generators Ltd, we can help guide you through the process and recommend the right backup generator for your needs.

Contact our team for expert guidance on selecting the right backup generator for your home or business.