20kW Generators

20kW generators from PES Supply provide reliable standby power from top brands including Generac, Cummins, and Briggs & Stratton. A 20kW standby generator powers most mid-size homes (1,500-2,500 sq ft) with central air conditioning and standard appliance loads. These air-cooled standby generators run on natural gas or propane and start automatically during power outages when…

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18 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 orderShips in 7–10 business daysTop 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 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 · 405WAvailable to orderShips in 7–10 business daysLONGi 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 · 600WAvailable to orderShips in 7–10 business daysJinko 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 orderShips in 7–10 business daysCanadian 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 orderShips in 7–10 business daysHyundai 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 orderShips in 7–10 business daysTalesun TM7G54M-450 450W Bifacial Solar PanelTalesun Talesun TM7G54M-450 450W Bifacial Solar Panel $185.63 $0.41/W · 450WAvailable to orderShips in 7–10 business daysAptos 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 orderShips in 7–10 business daysJA 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 orderShips in 7–10 business days

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About 20kW Generators

20kW generators from PES Supply provide reliable standby power from top brands including Generac, Cummins, and Briggs & Stratton. A 20kW standby generator powers most mid-size homes (1,500-2,500 sq ft) with central air conditioning and standard appliance loads. These air-cooled standby generators run on natural gas or propane and start automatically during power outages when paired with an automatic transfer switch (ATS).

A 20kW generator can power your central AC, refrigerator, well pump, lights, and major appliances during extended outages. Most models include Mobile Link Wi-Fi monitoring for remote status checks and maintenance alerts. PES Global Group offers competitive pricing, fast shipping from our Louisville, KY operations, expert technical support from our product team, and bulk pallet ordering for contractors and EPCs.

Use our Generator Sizing Calculator to verify {kw_num}kW meets your electrical load requirements, or contact our team for installation guidance and transfer switch compatibility.

Popular 20kW Generators models & specs