186 products
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Top Rated
Cummins RS25 - 25kW Quiet Connect Series 120/208V 3 Phase Liquid Cooled Standby Generator - A051Y399
SKU: PES-PS-GEN-0064MPN NOVendor:CumminsRegular price $17,733.56 USDRegular priceUnit price per -
Top Rated
Cummins RS25 - 25kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y239
SKU: PES-PS-GEN-0063MPN NOVendor:CumminsRegular price $18,012.44 USDRegular priceUnit price per -
SKU: PES-PS-GEN-0062MPN NOVendor:CumminsRegular price $7,131.24 USDRegular priceUnit price per
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Top Rated
SKU: PES-PS-GEN-0061MPN NOVendor:CumminsRegular price $6,171.49 USDRegular priceUnit price per -
Top Rated
SKU: PES-PS-GEN-0060MPN NOVendor:CumminsRegular price $5,538.25 USDRegular priceUnit price per -
Top Rated
SKU: PES-PS-GEN-0059MPN NOVendor:CumminsRegular price $4,778.50 USDRegular priceUnit price per -
SKU: PES-PS-GEN-0058MPN NOVendor:CumminsRegular price $6,863.27 USDRegular priceUnit price per
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Top Rated
SKU: PES-PS-GEN-0057MPN NOVendor:CumminsRegular price $5,803.60 USDRegular priceUnit price per -
Top Rated
SKU: PES-PS-GEN-0056MPN NOVendor:CumminsRegular price $5,290.21 USDRegular priceUnit price per -
SKU: PES-PS-GEN-0055MPN NOVendor:CumminsRegular price $4,385.27 USDRegular priceUnit price per
$4,419.04 USDSale price $4,385.27 USDSale -
SKU: PES-PS-GEN-0054MPN NOVendor:ChampionRegular price $5,687.60 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0053MPN NOVendor:ChampionRegular price $5,687.60 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0052MPN NOVendor:ChampionRegular price $5,687.60 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0051MPN NOVendor:ChampionRegular price $4,490.00 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0050MPN NOVendor:ChampionRegular price $4,989.00 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0049MPN NOVendor:ChampionRegular price $4,989.00 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0048MPN NOVendor:ChampionRegular price $4,190.60 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0047MPN NOVendor:ChampionRegular price $3,292.40 USDRegular priceUnit price per
Standby Generators for Automatic Backup Power
Protect your home or business with an automatic standby generator from PES Supply. Unlike portable units, standby generators are permanently installed and kick on automatically within seconds of an outage—keeping your lights, HVAC, refrigeration, and critical systems running. Shop top brands including Generac, Kohler, Briggs & Stratton, Cummins, and more.
Choose Your Power Level
- 10kW to 26kW residential standby generators for whole-home coverage
- 30kW to 60kW commercial and light-industrial units
- Air-cooled and liquid-cooled options
- Natural gas and LP fuel options
- ATS-compatible for seamless transfer
Standby generators run on your home's natural gas or propane supply, so there's no fuel storage or refueling required. With professional installation, a Generac or Kohler standby unit can power your entire home for days or weeks during extended outages. Browse our selection by wattage to find the right size for your needs.
Browse the full selection below and order today with fast shipping from PES Supply. Questions? Our solar and backup power experts are ready to help you spec the right system—contact us.