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20 kW Solar Kits

20 kW Solar Kits

  • On Sale
    20 kW solar kit Hyundai 410 black bifacial, SMA hybrid inverter
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    20.1kW solar kit Hyundai 410 black bifacial, SMA hybrid inverter

    Hyundai

    SALE PRICE - ORDER BY JUNE 1 $23,950.00
    REGULAR PRICE: $26,000.00
    20.1kW solar kit Hyundai 410 black bifacial module HiS-S410YH-BK, SMA Sunny Boy Smart Energy SBSE hybrid inverter, mounting, monitoring, accessories and permit plan. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST...
    HYD410-20kW-SMA
    SALE PRICE - ORDER BY JUNE 1 $23,950.00
    REGULAR PRICE: $26,000.00
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  • On Sale
    20kW solar kit Axitec 550 XXL bi-facial, SMA hybrid inverter
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    20.3kW solar kit Axitec 550 XXL bi-facial, SMA hybrid inverter

    Axitec

    SALE PRICE - ORDER BY JUNE 1 $23,950.00
    REGULAR PRICE: $26,400.00
    This high-power, low cost solar energy system generates 20,350 watts (20.3 kW) of grid-tied electricity with (37) 550 watt Axitec XXL bi-facial model AC-550MBT/144V, SMA Sunny Boy Smart Energy inverter, Sunny Portal 24/7 monitoring, disconnect box,...
    AX550-20kW-SMA
    SALE PRICE - ORDER BY JUNE 1 $23,950.00
    REGULAR PRICE: $26,400.00
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  • On Sale
    20 kW solar kit Hyundai 410 black bifacial, Sol-Ark hybrid inverter
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    20.5kW solar kit Hyundai 410 black bifacial, Sol-Ark hybrid inverter

    Hyundai

    SALE PRICE - ORDER BY JUNE 1 $25,500.00
    REGULAR PRICE: $27,000.00
    20.1kW solar kit Hyundai 410 black bifacial module HiS-S410YH-BK, Sol-Ark hybrid inverter, mounting, monitoring, accessories and permit plan. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST COST?  START SOLAR...
    HYD410-20kW-SolArk
    SALE PRICE - ORDER BY JUNE 1 $25,500.00
    REGULAR PRICE: $27,000.00
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  • On Sale
    20KW SOLAR KIT EG4 INVERTER
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    20kW solar kit Jinko 385 black, EG4 hybrid inverter

    Jinko Solar

    SALE PRICE - ORDER BY JUNE 1 $25,950.00
    REGULAR PRICE: $28,050.00
    20kW solar kit Jinko 385 black, EG4 hybrid inverter, JKM385M-72HBL-V Eagle Continental, made in the USA solar kit. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST COST?  START SOLAR DESIGN
    JKM385-20kW-EG4
    SALE PRICE - ORDER BY JUNE 1 $25,950.00
    REGULAR PRICE: $28,050.00
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  • On Sale
    20 solar kit Canadian 450 black, SMA hybrid inverter
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    20.2kW solar kit Canadian 450 black, SMA hybrid inverter

    Canadian Solar

    SALE PRICE - ORDER BY JUNE 1 $26,500.00
    REGULAR PRICE: $28,150.00
    20.2kW solar kit Canadian 450 TOPcon black module CS6.1-54TM-450, SMA Sunny Boy Smart Energy SBSE hybrid inverter, mounting, monitoring, accessories and permit plan. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST...
    CS450-20kW-SMA
    SALE PRICE - ORDER BY JUNE 1 $26,500.00
    REGULAR PRICE: $28,150.00
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  • On Sale
    20 kW solar kit Axitec 550 XXL bi-facial, Enphase hybrid micro-inverter
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    20.3kW solar kit Axitec 550 XXL bi-facial, Enphase hybrid micro-inverter

    Axitec

    SALE PRICE - ORDER BY JUNE 1 $27,300.00
    REGULAR PRICE: $28,650.00
    This high-power, low cost solar energy system generates 20,350 watts (20.3 kW) of grid-tied electricity with (37) 550 watt Axitec XXL bi-facial model AC-550MBT/144V, Enphase IQ8HC hybrid micro-inverters, IQ combiner box with Envoy, 24/7 monitoring,...
    AX550-20kW-Enphase
    SALE PRICE - ORDER BY JUNE 1 $27,300.00
    REGULAR PRICE: $28,650.00
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  • On Sale
    20 kW solar kit Canadian 450 black, Sol-Ark hybrid inverter
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    20.2kW solar kit Canadian 450 black, Sol-Ark hybrid inverter

    Canadian Solar

    SALE PRICE - ORDER BY JUNE 1 $27,600.00
    REGULAR PRICE: $30,500.00
    20.2kW solar kit Canadian 450 TOPcon black module CS6.1-54TM-450, Sol-Ark hybrid inverter, mounting, monitoring, accessories and permit plan. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST COST?  START SOLAR...
    CS450-20kW-SolArk
    SALE PRICE - ORDER BY JUNE 1 $27,600.00
    REGULAR PRICE: $30,500.00
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  • 20 kW solar kit Trina 425 black bi-facial, SMA hybrid inverter
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    20.4kW solar kit Trina 425 black bi-facial, SMA hybrid inverter

    Trina Solar

    $27,750.00
    20.4kW solar kit Trina 425 black bi-facial module TSM-425NE09RC.05, SMA Sunny Boy Smart Energy SBSE hybrid inverter, mounting, monitoring, accessories and permit plan. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST...
    TSM425-20kW-SMA
    $27,750.00
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  • On Sale
    20 kW solar kit Mission 410 black, SMA hybrid inverter
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    20 kW solar kit Mission 410 black, SMA hybrid inverter

    Mission Solar

    SALE PRICE - ORDER BY JUNE 1 $27,950.00
    REGULAR PRICE: $34,300.00
    This high-powered, made in the USA solar energy system generates 20,090 watts (20 kW) of grid-tied electricity with (49) 410 watt Mission MSE410HT0B premium all-black modules, SMA Sunny Boy inverter, Sunny Portal 24/7 monitoring, disconnect box, rooftop...
    MSE410-20kW-SMA
    SALE PRICE - ORDER BY JUNE 1 $27,950.00
    REGULAR PRICE: $34,300.00
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  • On Sale
    20 kW solar kit Axitec 550 XXL bi-facial, SolarEdge hybrid inverter
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    20.3kW solar kit Axitec 550 XXL bi-facial, SolarEdge hybrid inverter

    Axitec

    SALE PRICE - ORDER BY JUNE 1 $28,350.00
    REGULAR PRICE: $31,150.00
    This high-power, low cost solar energy system generates 20,350 watts (20.3 kW) of grid-tied electricity with (37) 550 watt Axitec XXL bi-facial model AC-550MBT/144V, SolarEdge Energy Hub inverter, module optimizers, 24/7 monitoring, disconnect box,...
    AX550-20kW-SolarEdge
    SALE PRICE - ORDER BY JUNE 1 $28,350.00
    REGULAR PRICE: $31,150.00
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  • 20 kW solar kit Trina 425 black bi-facial, Sol-Ark hybrid inverter
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    20.4kW solar kit Trina 425 black bi-facial, Sol-Ark hybrid inverter

    Trina Solar

    $29,000.00
    20.4kW solar kit Trina 425 black bi-facial module TSM-425NE09RC.05, Sol-Ark hybrid inverter, mounting, monitoring, accessories and permit plan. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST COST?  START SOLAR...
    TSM425-20kW-SolArk
    $29,000.00
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  • On Sale
    20 kW solar kit Hyundai 410 black bifacial, SolarEdge hybrid inverter
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    20.1kW solar kit Hyundai 410 black bifacial, SolarEdge hybrid inverter

    Hyundai

    SALE PRICE - ORDER BY JUNE 1 $29,150.00
    REGULAR PRICE: $31,350.00
    20.1kW solar kit Hyundai 410 black bifacial modules HiS-S410YH-BK, SolarEdge hybrid inverter, mounting, monitoring, accessories and permit plan. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST COST?  START SOLAR...
    HYD410-20kW-SolarEdge
    SALE PRICE - ORDER BY JUNE 1 $29,150.00
    REGULAR PRICE: $31,350.00
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  • On Sale
    20kw solar kit jinko panels enphase micros
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    20kW solar kit Jinko 385 black, Enphase hybrid micro-inverter

    Jinko Solar

    SALE PRICE - ORDER BY JUNE 1 $29,500.00
    REGULAR PRICE: $31,850.00
    20kW solar kit Jinko 385 black, Enphase hybrid micro-inverter, JKM385M-72HBL-V Eagle Continental, made in the USA solar kit. Order online or PHONE 888-498-3331 WANT A SOLAR PANEL SYSTEM AT THE LOWEST COST?  START SOLAR DESIGN
    JKM385-20kW-Enphase
    SALE PRICE - ORDER BY JUNE 1 $29,500.00
    REGULAR PRICE: $31,850.00
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  • 20 kW solar kit Axitec 550 XXL bi-facial, Sol-Ark hybrid inverter
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    20.3kW solar kit Axitec 550 XXL bi-facial, Sol-Ark hybrid inverter

    Axitec

    $29,550.00
    This high-power, low cost solar energy system generates 20,350 watts (20.3 kW) of on or off grid electricity with (37) 550 watt Axitec XXL bi-facial model AC-550MBT/144V, Sol-Ark hybrid inverter, 24/7 monitoring, disconnect box, rooftop mounting, safety...
    AX550-20kW-SolArk
    $29,550.00
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  • 20 kW solar kit Mission Solar 410 black, Sol-Ark hybrid inverter
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    20 kW solar kit Mission Solar 410 black, Sol-Ark hybrid inverter

    Mission Solar

    $30,250.00
    This high-powered, made in the USA solar energy system generates 20,090 watts (20 kW) of grid-tied or off-grid electricity with (49) 410 watt Mission MSE410HT0B premium all-black modules, Sol-Ark hybrid inverter, 24/7 monitoring, disconnect box, rooftop...
    MSE410-20kW-SolArk
    $30,250.00
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Compare price and performance of the Top Brands to find the best 20 kW solar system with up to 30 year warranty. Buy the lowest cost 20kW solar kit priced from $1.12 to $2.10 per watt with the latest, most powerful solar panels, module optimizers, or micro-inverters. For home or business, save 26% with a solar tax credit.

Click on a solar kit below to review parts list and options for battery storage, EV charging and installation.

What You Get With a 20kW Solar Kit

  • Up to 72 solar panels generate 2,600 kWh per month (varies by location)
  • UL test certified with up to 30 year manufacturer warranty
  • Grid-tied inverters, optimizers or micro-inverters
  • Mount on rooftop or ground (optional); up to 1,300 sf
  • Flat-rate shipping with lift-gate service to continental U.S.
  • System design and permit plan with electrical drawing, structural engineering
  • Installation instructions
  • 24/7 performance monitoring via web and smartphone
  • Lifetime technical support
  • Qualifies for all tax credits, rebates and incentives
  • Add-on options for battery storage, ground mounting, EV charging or full-service installation

Featuring daily updates with the lowest prices on solar panels, SunWatts has a big selection of affordable 20 kW PV systems for sale. These 20 kW size grid-connected solar kits include solar panels, DC-to-AC inverter, rack mounting system, hardware, cabling, permit plans and instructions. These are complete PV solar power systems that can work for a home or business, with just about everything you need to get the system up and running quickly. The kit prices shown include hardware components only; click on any kit to add your choice of full-service installation options for rooftop or ground mount.

A 20kW solar kit requires up to 1,300 square feet of space. 20kW or 20 kilowatts is 20,000 watts of DC direct current power. This could produce an estimated 2,600 kilowatt hours (kWh) of alternating current (AC) power per month, assuming at least 5 sun hours per day with the solar array facing South. The highest output will be achieved with an unobstructed south-facing view of the sun for maximum solar power. The actual power generated will vary based on location, equipment and installation factors. Refer to your electric utility bill to find the actual kWh used per month and compare it to how much power these low cost 20kW PV systems can generate.