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186 products

  • Top Rated
    Briggs & Stratton 125 kW propane generator 480V

    Briggs and Stratton 125kW Standby Generator - 270/480V, 225A Breaker, Block heater and Battery charger included - 080018

    SKU: PES-PS-GEN-0108
    MPN NO

    080018

    Briggs & Stratton
    $57,886.11 USD
    $57,886.11 USD
  • Top Rated
    Briggs & Stratton 125 kW propane generator 120/240 V

    Briggs and Stratton 125kW Standby Generator - 120/240V, 450A Breaker, Block heater and Battery charger included - 080017

    SKU: PES-PS-GEN-0107
    MPN NO

    080017

    Briggs & Stratton
    $57,886.11 USD
    $57,886.11 USD
  • Top Rated
    Briggs & Stratton 125 kW propane generator

    Briggs and Stratton 125kW Standby Generator - 120/208V, 500A Breaker, Block heater and Battery charger included - 080016

    SKU: PES-PS-GEN-0106
    MPN NO

    080016

    Briggs & Stratton
    $57,886.11 USD
    $57,886.11 USD
  • Top Rated
    Briggs & Stratton 80 kW propane generator 480V

    Briggs and Stratton 80kW Standby Generator - 277/480V, 150A Breaker, Block heater and Battery charger included - 080008

    SKU: PES-PS-GEN-0105
    MPN NO

    080008

    Briggs & Stratton
    $41,374.09 USD
    $41,374.09 USD
  • Top Rated
    Briggs & Stratton 80 kW propane generator

    Briggs and Stratton 80kW Standby Generator - 120/240V, 300A Breaker, Block heater and Battery charger included - 080007

    SKU: PES-PS-GEN-0104
    MPN NO

    080007

    Briggs & Stratton
    $41,374.09 USD
    $41,374.09 USD
  • Top Rated
    Briggs & Stratton 150 kW natural-gas generator

    Briggs and Stratton 150kW Standby Generator - 120/240V, 700A Breaker, Block heater and Battery charger included - 080020

    SKU: PES-PS-GEN-0102
    MPN NO

    080020

    Briggs & Stratton
    $59,083.10 USD
    $59,083.10 USD
  • Top Rated
    Briggs & Stratton 80 kW propane generator

    Briggs and Stratton 80kW Standby Generator - 120/208V, 300A Breaker, Block heater and Battery charger included - 080006

    SKU: PES-PS-GEN-0103
    MPN NO

    080006

    Briggs & Stratton
    $36,182.18 USD
    $36,182.18 USD
  • Top Rated
    Briggs & Stratton 100 kW natural-gas generator

    Briggs and Stratton 100kW Standby Generator - 120/240V, 500A Breaker, Block heater and Battery charger included - 080010

    SKU: PES-PS-GEN-0101
    MPN NO

    080010

    Briggs & Stratton
    $42,923.31 USD
    $42,923.31 USD
  • Top Rated
    Briggs & Stratton 80 kW natural-gas generator

    Briggs and Stratton 80kW Standby Generator - 120/240V, 350A Breaker, Block heater and Battery charger included - 080080

    SKU: PES-PS-GEN-0100
    MPN NO

    080080

    Briggs & Stratton
    $36,361.00 USD
    $36,361.00 USD
  • Top Rated
    Generac 40KW 4.5L 208/240/480 3P NG-LP AL EMS | Portlandia Electric Supply

    Generac 40KW 4.5L 208/240/480 3P NG-LP AL EMS

    SKU: PES-PS-GEN-00172
    MPN NO

    XG04045CNAC

    Generac
    $20,737.43 USD
    $20,737.43 USD
  • Top Rated
    Generac 40KW 4.5L 208/240/480 3P NG-LP AL | Portlandia Electric Supply

    Generac 40KW 4.5L 208/240/480 3P NG-LP AL

    SKU: PES-PS-GEN-00171
    MPN NO

    XG04045CNAX

    Generac
    $23,641.62 USD
    $23,641.62 USD
  • Top Rated
    Generac 40KW 4.5L 120/240 1P NG-LP AL EMS | Portlandia Electric Supply

    Generac 40KW 4.5L 120/240 1P NG-LP AL EMS

    SKU: PES-PS-GEN-00170
    MPN NO

    XG04045ANAC

    Generac
    $24,619.66 USD
    $24,619.66 USD
  • Top Rated
    Generac 40KW 4.5L 120/240 1P NG-LP AL | Portlandia Electric Supply

    Generac 40KW 4.5L 120/240 1P NG-LP AL

    SKU: PES-PS-GEN-00169
    MPN NO

    XG04045ANAX

    Generac
    $17,212.55 USD
    $17,212.55 USD
  • Top Rated
    Generac 32KW 4.5L 208/240/480 3P NG-LP AL | Portlandia Electric Supply

    Generac 32KW 4.5L 208/240/480 3P NG-LP AL

    SKU: PES-PS-GEN-00168
    MPN NO

    XG03245CNAX

    Generac
    $17,630.40 USD
    $17,630.40 USD
  • Top Rated
    Generac 32KW 4.5L 120/240 1P NG-LP AL | Portlandia Electric Supply

    Generac 32KW 4.5L 120/240 1P NG-LP AL

    SKU: PES-PS-GEN-00167
    MPN NO

    XG03245ANAX

    Generac
    $19,961.62 USD
    $19,961.62 USD
  • Top Rated
    Generac 80kW, 1800rpm, Alum Enclosure (Not for sale in CA/MA) | Portlandia Electric Supply

    Generac 80kW, 1800rpm, Alum Enclosure (Not for sale in CA/MA)

    SKU: PES-PS-GEN-00166
    MPN NO

    RG08045X

    Generac
    $31,673.08 USD
    $31,673.08 USD
  • Top Rated
    Generac 60kW

    Generac 60kW, 1800rpm, Alum Enclosure (Not for sale in CA/MA)

    SKU: PES-PS-GEN-00165
    MPN NO

    RG06045X

    Generac
    $21,497.64 USD
    $21,497.64 USD
  • Top Rated
    Generac 27/25 kW, 1800rpm, Alum Enclosure, SCAQMD Compliant | Portlandia Electric Supply

    Generac 27/25 kW, 1800rpm, Alum Enclosure, SCAQMD Compliant

    SKU: PES-PS-GEN-00164
    MPN NO

    RG02724

    Generac
    $14,429.08 USD
    $14,429.08 USD

Generator Backup Power Solutions

Ensure your home or business never loses power with a generator backup system from PES Supply. From automatic standby generators that kick on within seconds of an outage to portable units for flexible power, we carry every type and size. Shop trusted brands including Generac, Kohler, Briggs & Stratton, Champion, Cummins, DuroMax, and more.

Generator Backup Options

  • Standby generators – permanent, automatic, whole-home (10kW-60kW)
  • Portable generators – movable power for any location
  • Inverter generators – quiet, clean power for electronics
  • Transfer switches – ATS for standby, manual for portable
  • Generator accessories – maintenance kits, covers, cords
  • Natural gas, propane, and gasoline fuel options

A standby generator with an automatic transfer switch provides hands-free backup—you may not even notice the power went out. For homes already on solar, a generator adds redundancy for extended cloudy periods. Our team helps you size the right generator for your critical loads and fuel availability.

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.