48kW Generators

37 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
  • Renon EBrick 20.48kWh LFP Battery

    Renon EBrick 20.48kWh LFP Battery

    Sold out
    SKU: GAP-P2-RENONEBRICK2048KWHLF
    Cell / Type

    Batteries

    Renon
    $4,983.00 USD
    $4,986.00 USD $4,983.00 USD
    Out of stock
    Sold out
  • SunGold Off-Grid Solar Kit | 6500W/8000W 48VDC 120V/240V | LiFePO4 10.24KWH/20.48KWH Lithium Battery | 3320W Solar PV

    SunGold Off-Grid Solar Kit | 6500W/8000W 48VDC 120V/240V | LiFePO4 10.24KWH/20.48KWH Lithium Battery | 3320W Solar PV

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

    Batteries

    PES System Kits
    $5,799.00 USD
    $5,802.00 USD $5,799.00 USD
    Out of stock
    Sold out
  • Growatt ALP 20.48kWh LV LFP Battery

    Growatt ALP 20.48kWh LV LFP Battery

    Sold out
    SKU: GAP-P2-GROWATTALP2048KWHLVL
    Cell / Type

    Batteries

    Growatt
    $5,159.07 USD
    $5,172.00 USD $5,159.07 USD
    Out of stock
    Sold out
  • Generac 7088 Extreme Cold Weather Kit for 5.4L (Model RG04854 - 48kW)

    Generac 7088 Extreme Cold Weather Kit for 5.4L (Model RG04854 - 48kW)

    Sold out
    SKU: GAP-P2-GENERAC7088EXTREMECO
    Cell / Type

    Generators

    Generac
    $165.32 USD
    $166.99 USD $165.32 USD
    Out of stock
    Sold out
  • 48kW Generac Protector 208V 3 Phase Generator

    48kW Generac Protector 208V 3 Phase Generator

    Sold out
    SKU: GAP-P2-48KWGENERACPROTECTOR
    Cell / Type

    Generators

    Generac
    $17,214.00 USD
    $17,217.00 USD $17,214.00 USD
    Out of stock
    Sold out
  • Generac 48kW Generator 120/208V 3-PH SCAQMD

    Generac 48kW Generator 120/208V 3-PH SCAQMD

    Sold out
    SKU: GAP-P2-GENERAC48KWGENERATOR
    Cell / Type

    Generators

    Generac
    $18,650.25 USD
    $18,697.00 USD $18,650.25 USD
    Out of stock
    Sold out
  • Generac 48kw Protector Single Phase Standby Generator

    Generac 48kw Protector Single Phase Standby Generator

    Sold out
    SKU: GAP-P2-GENERAC48KWPROTECTOR
    Cell / Type

    Generators

    Generac
    $17,214.00 USD
    $17,217.00 USD $17,214.00 USD
    Out of stock
    Sold out
  • Outback Power 20.48kWh EnergyCell 5 Stackable Heated Lithium Battery - 4 Stack EC-FE5148

    Outback Power 20.48kWh EnergyCell 5 Stackable Heated Lithium Battery - 4 Stack EC-FE5148

    SKU: USS-OUTB-EC-FE5148
    Cell / Type

    Solar Bundles

    Outback Power
    $10,154.55 USD
    $10,154.55 USD
    In stock — 50 available
  • Extreme Cold Weather Kit for 4.2L; 48kW

    Extreme Cold Weather Kit for 4.2L; 48kW

    SKU: PES-PS-GEN-0550
    Cell / Type

    Solar Kits

    Generac
    $166.99 USD
    $166.99 USD
    Available to order
  • Extreme Cold Weather Kit for 5.4L; 48kW

    Extreme Cold Weather Kit for 5.4L; 48kW

    SKU: PES-PS-GEN-0547
    Cell / Type

    Solar Kits

    Generac
    $166.99 USD
    $166.99 USD
    Available to order
  • Maintenance Kit, 4.2L; 48kW

    Maintenance Kit, 4.2L; 48kW

    SKU: PES-PS-GEN-0529
    Cell / Type

    Solar Kits

    Generac
    $86.99 USD
    $86.99 USD
    Available to order
  • Maintenance Kit, 4.5L; 48kW

    Maintenance Kit, 4.5L; 48kW

    SKU: PES-PS-GEN-0528
    Cell / Type

    Solar Kits

    Generac
    $123.99 USD
    $123.99 USD
    Available to order
  • Maintenance Kit, 5.4L; 48kW

    Maintenance Kit, 5.4L; 48kW

    SKU: PES-PS-GEN-0527
    Cell / Type

    Solar Kits

    Generac
    $92.99 USD
    $92.99 USD
    Available to order
  • 48KW 4.5L 208/240/480 3P NG-LP AL EMS

    48KW 4.5L 208/240/480 3P NG-LP AL EMS

    SKU: PES-PS-GEN-0455
    Cell / Type

    Generators

    PES System Kits
    $26,249.00 USD
    $26,249.00 USD
    Available to order
  • 48KW 4.5L 208/240/480 3P NG-LP AL

    48KW 4.5L 208/240/480 3P NG-LP AL

    SKU: PES-PS-GEN-0454
    Cell / Type

    Generators

    PES System Kits
    $24,969.00 USD
    $24,969.00 USD
    Available to order
  • 48KW 4.5L 120/240 1P NG-LP AL EMS

    48KW 4.5L 120/240 1P NG-LP AL EMS

    SKU: PES-PS-GEN-0453
    Cell / Type

    Generators

    PES System Kits
    $25,949.00 USD
    $25,949.00 USD
    Available to order
  • 48KW 4.5L 120/240 1P NG-LP AL

    48KW 4.5L 120/240 1P NG-LP AL

    SKU: PES-PS-GEN-0452
    Cell / Type

    Generators

    PES System Kits
    $24,679.00 USD
    $24,679.00 USD
    Available to order
  • Generac Maintenance Kit, 5.4L; 48kW - 6205

    Generac Maintenance Kit, 5.4L; 48kW - 6205

    Sold out
    SKU: PES-SPS-SOL-6736
    Cell / Type

    Solar Kits

    Generac
    $89.99 USD
    $89.99 USD
    Out of stock
    Sold out

About 48kW Generators

48kW Generators for Reliable Backup Power

Shop 48kW generators at PES Supply for automatic backup power that keeps your home or business running during outages. 48 kilowatt standby generators provide substantial capacity for commercial and whole-home standby power. Browse units from Generac, Kohler, Briggs & Stratton, Cummins, and other top brands.

48kW Generator Features

  • Automatic startup within seconds of an outage
  • Natural gas or propane fuel options
  • Air-cooled or liquid-cooled depending on size
  • ATS-compatible for seamless transfer
  • Quiet operation with sound-attenuated enclosures
  • Wi-Fi monitoring on select models

This size is suitable for large homes with central AC, or commercial facilities requiring 48kW of continuous backup power. A 48kW unit runs on your home's existing gas supply, so there's no fuel storage or refueling. Professional installation with a transfer switch provides fully automatic, hands-off backup power for years of reliable service.

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.

Popular 48kW Generators models & specs