17-20kW Standby Generators

93 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 · 600WTop 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 · 400WTop SellerZnshine 405W Black ON Black 108 HALF-CELL MONO Solar Panel - ZXM7-SH108-405/MZNShine Znshine 405W Black ON Black 108 HALF-CELL MONO Solar Pa... $147.61 $0.36/W · 405WLONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial ModuleLONGi Solar LONGi Hi-MO X6 Scientist 600W N-Type TOPCon Bifacial Mo... $161.29 $0.27/W · 600WJinko 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 · 600WCanadian 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 · 395WHyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar PanelHyundai Energy Solutions Hyundai HiS-S410YH(BK) 410W Bifacial Commercial Solar P... $167.76 $0.41/W · 410WTalesun TM7G54M-450 450W Bifacial Solar PanelTalesun Talesun TM7G54M-450 450W Bifacial Solar Panel $185.63 $0.41/W · 450WAptos Solar DNA-120-BF10-440W 440W Bifacial Solar PanelAptos Aptos Solar DNA-120-BF10-440W 440W Bifacial Solar Panel $185.92 $0.42/W · 440WJA 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
  • SolarEdge 20kW 480VDC 3-Phase SetAPP Inverter w/ AC RSD DC Safety Switch & AFCI - SE20K-USR8TBNU4

    SolarEdge 20kW 480VDC 3-Phase SetAPP Inverter w/ AC RSD DC Safety Switch & AFCI - SE20K-USR8TBNU4

    Sold out
    SKU: PES-SPS-SIV-0490
    MPN NO

    SE20K-USR8TBNU4

    Cell / Type

    Solar Inverters

    SolarEdge
    $1,640.31 USD
    $1,640.31 USD
    Out of stock
    Sold out
  • SolarEdge Synergy 120.0kW 3-Ph Inverter - SE120K-US08IBNW4

    SolarEdge Synergy 120.0kW 3-Ph Inverter - SE120K-US08IBNW4

    SKU: PES-SPS-SIV-0008
    MPN NO

    SE120K-US08IBNW4

    Cell / Type

    Solar Inverters

    SolarEdge
    $1,802.88 USD
    $1,802.88 USD
    In stock
  • Generac Guardian 3-Phase 20KW Automatic Standby Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007077-1

    Generac Guardian 3-Phase 20KW Automatic Standby Air-Cooled Gas Engine Generator in Aluminum Enclosure - G007077-1

    Sold out
    SKU: PES-PS-GEN-0031
    MPN NO

    G007077-1

    Cell / Type

    Generators

    Generac
    $6,003.95 USD
    $6,003.95 USD
    Out of stock
    Sold out
  • Sol-Ark 18kW Inverter SA-18K-2P 48VDC 120/240V | Outdoor Grid-tied and Off-grid

    Sol-Ark 18kW Inverter SA-18K-2P 48VDC 120/240V | Outdoor Grid-tied and Off-grid

    Sold out
    SKU: GAP-P2-SOLARK18KWINVERTERSA
    Cell / Type

    Inverters

    Sol-Ark
    $6,106.00 USD
    $6,109.00 USD $6,106.00 USD
    Out of stock
    Sold out
  • SMA Sunny Tripower X 480V 20KW 72A String Inverter | STP 20-US-50 — PES Supply

    SMA Sunny Tripower X 480V 20KW 72A String Inverter | STP 20-US-50

    Sold out
    SKU: GAP-P2-SMASUNNYTRIPOWERX480
    Cell / Type

    Inverters

    SMA
    $4,117.00 USD
    $4,120.00 USD $4,117.00 USD
    Out of stock
    Sold out
  • Sonnen ECOLX20SS-15 8.0KW Energy Storage System (20.0kwh Capacity)

    Sonnen ECOLX20SS-15 8.0KW Energy Storage System (20.0kwh Capacity)

    SKU: USS-SONN-ECOLX20SS
    Cell / Type

    Solar Batteries

    sonnen
    $47,599.24 USD
    $47,599.24 USD
    In stock
  • Racking kit for 18kW system Flat PV membran roof

    Racking kit for 18kW system Flat PV membran roof

    SKU: A1-A1SO-RACKITFOR
    Cell / Type

    Solar Racking & Mounting

    PES System Kits
    $8,323.00 USD
    $8,323.00 USD
    In stock
  • Racking kit for 17kW system Tile roof

    Racking kit for 17kW system Tile roof

    SKU: A1-A1SO-RACKITFOR
    Cell / Type

    Solar Racking & Mounting

    PES System Kits
    $4,948.00 USD
    $4,948.00 USD
    In stock
  • Racking kit for 17kW system Asphalt shingle roof

    Racking kit for 17kW system Asphalt shingle roof

    SKU: A1-A1SO-RACKITFOR
    Cell / Type

    Solar Racking & Mounting

    PES System Kits
    $5,396.00 USD
    $5,396.00 USD
    In stock
  • SMA 20kW Sunny Tripower X String Inverter STP 20-US-50

    SMA 20kW Sunny Tripower X String Inverter STP 20-US-50

    Sold out
    SKU: USIN100-0514
    Cell / Type

    Inverters

    SMA
    $3,835.72 USD
    $3,855.00 USD $3,835.72 USD
    Out of stock
    Sold out
  • Sol-Ark 18kW Hybrid Solar Inverter 18K-2P-N — PES Supply

    Sol-Ark 18kW Hybrid Solar Inverter 18K-2P-N

    Sold out
    SKU: USSSP202-195
    Cell / Type

    Inverters

    Sol-Ark
    $6,103.70 USD
    $6,119.00 USD $6,103.70 USD
    Out of stock
    Sold out
  • SigenStor 18kWh 5-in-One Battery Stackable Energy Storage System BAT 6.0 US Kit

    SigenStor 18kWh 5-in-One Battery Stackable Energy Storage System BAT 6.0 US Kit

    Sold out
    SKU: USSSP202-822
    Cell / Type

    Storage Solutions

    Sigenergy
    $8,794.81 USD
    $8,839.00 USD $8,794.81 USD
    Out of stock
    Sold out
  • Maintenance Kit, VSCF, 15kW & 20kW 999cc Kit

    Maintenance Kit, VSCF, 15kW & 20kW 999cc Kit

    SKU: PES-PS-GEN-0497
    Cell / Type

    Solar Kits

    Generac
    $54.99 USD
    $54.99 USD
    In stock
  • Maintenance Kit, 20kW, 22kW, 24kW & 26kW: 999cc Kit (For 2013 and later HSB models)

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

    SKU: PES-PS-GEN-0496
    Cell / Type

    Solar Kits

    Generac
    $29.92 USD
    $29.92 USD
    In stock
  • Maintenance Kit, 13kW through 18kW, 816cc Kit

    Maintenance Kit, 13kW through 18kW, 816cc Kit

    SKU: PES-PS-GEN-0495
    Cell / Type

    Solar Kits

    Generac
    $29.99 USD
    $29.99 USD
    In stock
  • Maintenance Kit, 20kW, 999cc Kit (For HSB models prior to 2013)

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

    SKU: PES-PS-GEN-0491
    Cell / Type

    Solar Kits

    Generac
    $29.99 USD
    $29.99 USD
    In stock
  • Maintenance Kit, 13kW through 17kW, 990cc Kit (For HSB models prior to 2013)

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

    SKU: PES-PS-GEN-0490
    Cell / Type

    Solar Kits

    Generac
    $29.99 USD
    $29.99 USD
    In stock
  • Solis 20kW Three Phase Grid-tie String Inverter

    Solis 20kW Three Phase Grid-tie String Inverter

    Sold out
    SKU: PES-SPS-SOL-18304
    Cell / Type

    Solar Inverters

    Solis
    $3,800.00 USD
    $3,800.00 USD
    Out of stock
    Sold out

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.