Generator Types
Three real ways to keep the power on during an outage, each with different tradeoffs on cost, automation, and runtime. Compare them here, then use our sizing calculator to figure out what capacity you'd actually need.
Whole-Home Standby GeneratorsA whole-home standby generator is permanently installed outside your house, wired into your electrical panel through an automatic transfer...$5,000–$15,000 installed, depending on size and local labor/permit costs.Portable GeneratorsA portable generator runs on gasoline or propane, sits outside on wheels or a stand, and connects to select circuits via extension cords or...$500–$3,000 for the unit; add $500–$1,500 for a manual transfer switch installation if you want it wired to specific circuits.Solar + Battery Backup SystemsA battery backup system (like a Tesla Powerwall-style unit) stores electricity, either from solar panels or the grid, and discharges it...$10,000–$25,000+ per battery unit installed, often needing 2+ units for whole-home coverage; solar panels are a separate cost if not already installed.