Residential Generators

A residential generator is a power backup solution that automatically or manually supplies electricity when the grid fails. Homeowners need them to safeguard daily essentials such as refrigeration, HVAC, medical equipment, and lighting during storms, utility failures, or prolonged blackouts.

In regions prone to hurricanes, ice storms, or wildfires, having a generator is not a luxury but a necessity for safety and continuity of daily life.

The right size generator is determined by calculating the total wattage of essential appliances and ensuring the generator can handle both running and starting loads. A common rule of thumb is to size slightly larger than your current needs to accommodate future demand.

Key Appliances to Consider

Critical appliances usually include central air conditioning, sump pumps, refrigerators, security systems, lighting circuits, and medical devices. For example, a whole-house standby unit may require 20–24 kW, while a portable option for partial coverage may suffice with 5–10 kW.

Fuel type influences convenience, cost, and long-term reliability. Propane and natural gas are preferred for standby systems due to availability and cleaner emissions, while diesel remains popular for high-power durability. Solar hybrids are emerging as eco-friendly alternatives, particularly for supplemental backup.

The cost depends on size, type, and installation complexity. Portable models typically range from $500–$2,500, while standby systems, including professional installation, can cost between $5,000 and $15,000. Ongoing maintenance and fuel supply must also be factored into the total investment.

The quietest options are inverter generators and modern standby models designed with sound-dampening enclosures. Inverter units typically operate between 50–60 decibels, comparable to normal conversation, while enclosed standby systems often run in the 60–70 decibel range. These options are ideal for suburban neighborhoods where noise restrictions apply.

Reliable operation depends on routine maintenance. Generators require regular oil and filter changes, battery inspections, fuel monitoring, and professional servicing at least once a year. Standby systems often include self-testing modes to ensure readiness, but manual checks remain essential.