Generator Backup Power

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Solar Panels

Inverters

Storage solutions

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Solar Equipment

Racking

Accessories

186 products

  • Top Rated
    Champion 22kW aXis Generator

    Champion 22kW aXis Generator (aXis ATS compatible only) - 100304

    SKU: PES-PS-GEN-0046
    MPN NO

    100304

    Champion
    $5,184.61 USD
    $5,184.61 USD
  • Top Rated
    Champion 14kW aXis Generator (aXis ATS compatible only) - 100515 | Portlandia Electric Supply

    Champion 14kW aXis Generator (aXis ATS compatible only) - 100515

    SKU: PES-PS-GEN-0045
    MPN NO

    100515

    Champion
    $2,244.50 USD
    $2,244.50 USD
  • Top Rated
    Champion 12.5kW Generator (Select Circuit ATS compatible only) - 100136 | Portlandia Electric Supply

    Champion 12.5kW Generator (Select Circuit ATS compatible only) - 100136

    SKU: PES-PS-GEN-0044
    MPN NO

    100136

    Champion
    $3,388.21 USD
    $3,388.21 USD
  • Top Rated
    Champion 8.5kW Generator (Select Circuit ATS compatible only) - 100199 | Portlandia Electric Supply

    Champion 8.5kW Generator (Select Circuit ATS compatible only) - 100199

    SKU: PES-PS-GEN-0043
    MPN NO

    100199

    Champion
    $2,589.81 USD
    $2,589.81 USD
  • Top Rated
    Generac RG15090

    Generac Protector 150KW Automatic Standby Liquid-Cooled Gaseous Engine Generator in Aluminum Enclosure - RG15090

    SKU: PES-PS-GEN-0042
    MPN NO

    RG15090

    Generac
    $43,142.54 USD
    $43,142.54 USD
  • Top Rated
    Generac RG10090

    Generac Protector 100KW Automatic Standby Liquid-Cooled Gaseous Engine Generator in Aluminum Enclosure - RG10090

    SKU: PES-PS-GEN-0040
    MPN NO

    RG10090

    Generac
    $31,039.24 USD
    $31,039.24 USD
  • Top Rated
    Generac RG08045

    Generac Protector 80KW Automatic Standby Liquid-Cooled Gaseous Engine Generator in Aluminum Enclosure - RG08045

    SKU: PES-PS-GEN-0039
    MPN NO

    RG08045

    Generac
    $27,616.69 USD
    $27,616.69 USD
  • Top Rated
    Generac RG06045

    Generac Protector 60KW Automatic Standby Liquid-Cooled Gaseous Engine Generator in Aluminum Enclosure - RG06045

    SKU: PES-PS-GEN-0038
    MPN NO

    RG06045

    Generac
    $23,092.72 USD
    $23,092.72 USD
  • Top Rated
    Generac RG030 Standby Home Generators 30kW | Portlandia Electric Supply

    Generac Protector 30KW Automatic Standby Liquid-Cooled Gaseous Engine Generator in Aluminum Enclosure - RG030

    SKU: PES-PS-GEN-0037
    MPN NO

    RG030

    Generac
    $13,302.34 USD
    $13,302.34 USD
  • Top Rated
    Generac RG025 Standby Home Generators 25kW | Portlandia Electric Supply

    Generac Protector 25KW Automatic Standby Liquid-Cooled Gaseous Engine Generator in Aluminum Enclosure - RG025

    SKU: PES-PS-GEN-0036
    MPN NO

    RG025

    Generac
    $10,894.25 USD
    $10,894.25 USD
  • Top Rated
    Generac G007291-0

    Generac Guardian 26Kw Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007291-0

    SKU: PES-PS-GEN-0035
    MPN NO

    G007291-0

    Generac
    $7,192.16 USD
    $7,192.16 USD
  • Top Rated
    Generac G007210-10

    Generac Guardian 24KW Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007210-10

    SKU: PES-PS-GEN-0034
    MPN NO

    G007210-10

    Generac
    $6,566.01 USD
    $6,566.01 USD
  • Top Rated
    Generac G007290-0

    Generac Guardian 26Kw Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007290-0

    SKU: PES-PS-GEN-0033
    MPN NO

    G007290-0

    Generac
    $6,186.60 USD
    $6,186.60 USD
  • Top Rated
    Generac G007228-0

    Generac Guardian 18KW Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007228-0

    SKU: PES-PS-GEN-0032
    MPN NO

    G007228-0

    Generac
    $8,062.99 USD
    $8,062.99 USD
  • Top Rated
    Generac G007225-0

    Generac Guardian 14Kw Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007225-0

    SKU: PES-PS-GEN-0030
    MPN NO

    G007225-0

    Generac
    $5,268.44 USD
    $5,268.44 USD
  • Top Rated
    Generac G007226-0

    Generac Guardian 18KW Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007226-0

    SKU: PES-PS-GEN-0029
    MPN NO

    G007226-0

    Generac
    $5,173.01 USD
    $5,173.01 USD
  • Top Rated
    Generac G007224-0

    Generac Guardian 14Kw Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007224-0

    SKU: PES-PS-GEN-0028
    MPN NO

    G007224-0

    Generac
    $4,456.60 USD
    $4,456.60 USD
  • Top Rated
    Generac Protector 36.0KW Standby Generator - RG03624A | Portlandia Electric Supply

    Generac Protector 36.0KW Standby Generator - RG03624A

    SKU: PES-PS-GEN-0022
    MPN NO

    RG03624A

    Generac
    $17,066.43 USD
    $17,066.43 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.