17-20kW Standby Generators

Large-home 17-20kW standby generators from Generac, Kohler, Cummins and Champion. True whole-home backup for most US homes.

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71 products

Top Sellers — Market Front-Runners The same Tier-1 lines as the big national players · live PES pricing
Top SellerTrina Solar Vertex N 600W N-Type TOPCon Commercial ModuleTrina Solar Trina Solar Vertex N 600W N-Type TOPCon Commercial Module $158.06 $0.26/W · 600WAvailable to orderLead time confirmed at checkoutTop SellerZNshine 400W ZXM7-SH108-400/M All Black Monocrystalline Solar PanelZNShine ZNshine 400W ZXM7-SH108-400/M All Black Monocrystalline... $136.86 $0.34/W · 400WIn stockShips in 1–2 business daysTop SellerZNShine Solar 405W 108-Cell Solar PanelZNShine ZNShine Solar 405W 108-Cell Solar Panel $147.61 $0.36/W · 405WAvailable to orderLead time confirmed at checkoutLONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial ModuleLONGi LONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial Mo... $161.29 $0.27/W · 600WAvailable to orderLead time confirmed at checkoutJinko Tiger Neo N-Type 600W Bifacial TOPCon Solar PanelJinko Solar Jinko Tiger Neo N-Type 600W Bifacial TOPCon Solar Panel $164.52 $0.27/W · 600WAvailable to orderLead time confirmed at checkoutCanadian Solar HiKu6 395W Mono Solar Panel - CS6R-395MS-HLCanadian Solar Canadian Solar HiKu6 395W Mono Solar Panel - CS6R-395MS-HL $162.00 $0.41/W · 395WAvailable to orderLead time confirmed at checkoutHyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar PanelHyundai Energy Solutions Hyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar P... $167.76 $0.41/W · 410WAvailable to orderLead time confirmed at checkoutTalesun TM7G54M-450 450W Bifacial Solar PanelTalesun Talesun TM7G54M-450 450W Bifacial Solar Panel $185.63 $0.41/W · 450WAvailable to orderLead time confirmed at checkoutAptos Solar DNA-120-BF10-440W 440W Bifacial Solar PanelAptos Aptos Solar DNA-120-BF10-440W 440W Bifacial Solar Panel $185.92 $0.42/W · 440WAvailable to orderLead time confirmed at checkoutJA Solar 545 W Solar Panel – JAM72D30‑545/MB, 144‑cell BifacialJA Solar JA Solar 545 W Solar Panel – JAM72D30‑545/MB, 144‑cell ... $262.79 Available to orderLead time confirmed at checkout
  • Kohler Cold Weather Package Kit, 120V (20kW) GM110948-KP2-QS

    Kohler Cold Weather Package Kit, 120V (20kW) GM110948-KP2-QS

    Kohler
    $610.99 USD
    $610.99 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • FoxESS 11.4-US + 20kWh Battery + Hub - FoxESS 11.4-US + 20kWh Battery + Hub

    FoxESS 11.4-US + 20kWh Battery + Hub - FoxESS 11.4-US + 20kWh Battery + Hub

    FoxESS
    $10,466.17 USD
    $10,466.17 USD
    $523/kWh
    Available to order
    Lead time confirmed at checkout
    In Stock
  • Briggs and Stratton Back Panel Assembly for PP 17kW-26kW - 6858

    Briggs and Stratton Back Panel Assembly for PP 17kW-26kW - 6858

    Briggs & Stratton
    $223.31 USD
    $223.31 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Briggs and Stratton Roof Assembly for PP 17kW-26kW - 6860

    Briggs and Stratton Roof Assembly for PP 17kW-26kW - 6860

    Briggs & Stratton
    $166.95 USD
    $166.95 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Briggs and Stratton Corner Assembly for PP 17kW-26kW (4 posts) - 6856 — side angle

    Briggs and Stratton Corner Assembly for PP 17kW-26kW (4 posts) - 6856

    Briggs & Stratton
    $170.95 USD
    $170.95 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Briggs and Stratton Universal End Panel Assembly for PP 17kW-26kW - 6859

    Briggs and Stratton Universal End Panel Assembly for PP 17kW-26kW - 6859

    Briggs & Stratton
    $360.15 USD
    $360.15 USD
    $21/kW
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Briggs and Stratton Front Panel Assembly for PP 17kW-26kW - 6855 — side angle

    Briggs and Stratton Front Panel Assembly for PP 17kW-26kW - 6855

    Briggs & Stratton
    $414.13 USD
    $414.13 USD
    $24/kW
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Briggs and Stratton Basic Wireless Monitor - 15-20kW Only and 25-30kW with B&S Controller - 6276 — front view

    Briggs and Stratton Basic Wireless Monitor - 15-20kW Only and 25-30kW with B&S Controller - 6276

    Briggs & Stratton
    $226.00 USD
    $226.00 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Generac Maintenance Kit, 20kW, 22kW, 24kW & 26kW: 999cc Kit (For 2013 and later HSB models) - 6485

    Generac Maintenance Kit, 20kW, 22kW, 24kW & 26kW: 999cc Kit (For 2013 and later HSB models) - 6485

    Generac
    $29.99 USD
    $29.99 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Generac Maintenance Kit, 13kW through 18kW, 816cc Kit - 7216

    Generac Maintenance Kit, 13kW through 18kW, 816cc Kit - 7216

    Generac
    $29.99 USD
    $29.99 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Generac Maintenance Kit, 13kW through 17kW, 990cc Kit (For 2013 and later HSB models)

    Generac Maintenance Kit, 13kW through 17kW, 990cc Kit (For 2013 and later HSB models)

    Generac
    $29.99 USD
    $29.99 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Generac Maintenance Kit, 20kW, 999cc Kit (For HSB models prior to 2013)

    Generac Maintenance Kit, 20kW, 999cc Kit (For HSB models prior to 2013)

    Generac
    $26.99 USD
    $26.99 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Generac Maintenance Kit, 13kW through 17kW, 990cc Kit (For HSB models prior to 2013) - 5664

    Generac Maintenance Kit, 13kW through 17kW, 990cc Kit (For HSB models prior to 2013) - 5664

    Generac
    $29.99 USD
    $29.99 USD
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Cummins C20D6 - 20kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A063P961 — front view

    Cummins C20D6 - 20kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A063P961

    Sale
    Cummins
    $20,770.73 USD
    $21,413.12 USD $20,770.73 USD
    -3%
    $1039/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Cummins C20D6 - 20kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A063P962 — front view

    Cummins C20D6 - 20kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A063P962

    Sale
    Cummins
    $17,805.46 USD
    $18,356.15 USD $17,805.46 USD
    -3%
    $890/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Cummins RS20ACE - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator with 200A, SE, 3R ATS…

    Cummins RS20ACE - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator with 200A, SE, 3R ATS - A071Z395

    Sale
    Cummins
    $6,917.95 USD
    $7,131.91 USD $6,917.95 USD
    -3%
    $346/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Cummins RS20AE - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator - A071Z202 — front view

    Cummins RS20AE - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator - A071Z202

    Sale
    Cummins
    $6,111.82 USD
    $6,300.85 USD $6,111.82 USD
    -3%
    $306/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Cummins RS17AE - 17kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator - A071Z401 — front view

    Cummins RS17AE - 17kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator - A071Z401

    Sale
    Cummins
    $5,409.33 USD
    $5,576.63 USD $5,409.33 USD
    -3%
    $318/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Cummins RS20AC - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator with 200A, SE, 3R ATS - A071Z402…

    Cummins RS20AC - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator with 200A, SE, 3R ATS - A071Z402

    Sale
    Cummins
    $6,662.42 USD
    $6,868.48 USD $6,662.42 USD
    -3%
    $333/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Cummins RS20A - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator - A071Z397 — side angle

    Cummins RS20A - 20kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator - A071Z397

    Sale
    Cummins
    $5,747.50 USD
    $5,925.25 USD $5,747.50 USD
    -3%
    $287/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Cummins RS17A - 17kW Quiet Connect Series 120/240V 1 Phase Air Cooled Standby Generator - A071Z394 — front view

    Cummins RS17A 17kW Quiet Connect Standby Generator

    Sale
    Cummins
    $5,167.05 USD
    $5,326.86 USD $5,167.05 USD
    -3%
    $304/kW
    Available to order
    Ships in 13-20 weeks by model (ATS ~13 wk, genset ~20 wk)
    SaleIn Stock
  • Generac Guardian 18KW Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007228-0 — PES Supply

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

    Generac
    $8,062.99 USD
    $8,062.99 USD
    $448/kW
    Available to order
    Ships in 2–4 weeks
    In Stock
  • Generac Guardian 18KW Home Backup Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007226-0 — back view

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

    Generac
    $5,173.01 USD
    $5,173.01 USD
    $287/kW
    Available to order
    Ships in 2–4 weeks
    In Stock

About 17-20kW Standby Generators

Large-home 17-20kW standby generators from Generac, Kohler, Cummins and Champion. True whole-home backup for most US homes.