186 products
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SKU: PES-PS-GEN-0082MPN NOVendor:CumminsRegular price $28,053.57 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0081MPN NOVendor:CumminsRegular price $28,053.57 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0080MPN NOVendor:CumminsRegular price $23,881.28 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0079MPN NOVendor:CumminsRegular price $23,881.28 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0078MPN NOVendor:CumminsRegular price $23,881.28 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0077MPN NOVendor:CumminsRegular price $23,881.28 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0076MPN NOVendor:CumminsRegular price $19,927.10 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0075MPN NOVendor:CumminsRegular price $19,927.10 USDRegular priceUnit price per
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SKU: PES-PS-GEN-0074MPN NOVendor:CumminsRegular price $19,927.10 USDRegular priceUnit price per
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Top Rated
Cummins RS40 - 40kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y419
SKU: PES-PS-GEN-0073MPN NOVendor:CumminsRegular price $19,927.10 USDRegular priceUnit price per -
SKU: PES-PS-GEN-0072MPN NOVendor:CumminsRegular price $19,683.80 USDRegular priceUnit price per
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Top Rated
Cummins RS36 - 36kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y417
SKU: PES-PS-GEN-0071MPN NOVendor:CumminsRegular price $19,784.86 USDRegular priceUnit price per$20,396.77 USDSale price $19,784.86 USDSale -
Top Rated
Cummins RS36 - 36kW Quiet Connect Series 277/480V 3 Phase Liquid Cooled Standby Generator - A051Y416
SKU: PES-PS-GEN-0070MPN NOVendor:CumminsRegular price $19,760.52 USDRegular priceUnit price per -
Top Rated
Cummins RS36 - 36kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y413
SKU: PES-PS-GEN-0069MPN NOVendor:CumminsRegular price $19,745.56 USDRegular priceUnit price per -
Top Rated
Cummins RS30 - 30kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y405
SKU: PES-PS-GEN-0068MPN NOVendor:CumminsRegular price $19,105.47 USDRegular priceUnit price per -
Top Rated
Cummins RS30 - 30kW Quiet Connect Series 120/208V 3 Phase Liquid Cooled Standby Generator - A051Y402
SKU: PES-PS-GEN-0067MPN NOVendor:CumminsRegular price $19,172.84 USDRegular priceUnit price per -
Top Rated
Cummins RS30 - 30kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y401
SKU: PES-PS-GEN-0066MPN NOVendor:CumminsRegular price $19,228.99 USDRegular priceUnit price per -
Top Rated
Cummins RS25 - 25kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y400
SKU: PES-PS-GEN-0065MPN NOVendor:CumminsRegular price $17,870.19 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.