25 kW Solar Kits

25 kW Solar Kits

  • 25.3kW solar kit CSUN 390 XL, SMA Sunny Boy (CSUN390-25kW-SMA)
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    25.3kW solar kit CSUN 390 XL, SMA Sunny Boy

    CSUN Solar

    $29,100.00
    This low cost 25.3 kW solar system generates 25350 watts of grid-tied DC power. The solar kit includes 65 CSUN 390 XL model CSUN390-72MH made in the USA solar panels, SMA Sunny Boy inverter, monitoring and rooftop mounting. This is a total system package...
    CSUN390-25kW-SMA
    $29,100.00
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  • 25.2kW solar kit Trina 400 XL, SMA inverter
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    25.2kW solar kit Trina 400 XL, SMA inverter

    Trina

    $29,250.00
    This high-power, low cost solar energy system generates 25.2 kW of grid-tied electricity with (63) Trina 400 watt XL monocrystalline modules with silver frame, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7 monitoring, disconnect...
    TSM400-25kW-SMA
    $29,250.00
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  • 25.2kW solar kit Peimar 315, SMA inverter
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    25.2kW solar kit Peimar 315, SMA inverter

    Peimar

    $29,300.00
    This affordable, high-efficiency 25.2 kW solar kit includes (80) Peimar 315 watt black-frame model SG315M-BF 60-cell monocrystalline modules, SMA Sunny Boy inverter, safety disconnect, monitoring, rooftop mounting, system design, permit plan and safety...
    SG315-25kW-SMA
    $29,300.00
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  • 25.2kW solar kit Axitec 400 XL, SMA Sunny Boy inverter AC-400MH/144S
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    25.2kW solar kit Axitec 400 XL, SMA inverter

    Axitec Solar

    $30,500.00
    This 25.2 kW solar kit includes (63) Axitec 400 XL model AC-400MH/144S Mono-Perc 144-cell modules, SMA Sunny Boy inverter, safety disconnect, monitoring, rooftop mounting, system design, permit plan and safety labels. The German engineered Axitec solar...
    AXI400-25kW-SMA
    $30,500.00
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  • 25kW solar kit Axitec 385 XL, SMA Sunny Boy
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    25kW solar kit Axitec 385 XL, SMA Sunny Boy

    Axitec Solar

    $30,550.00
    This 25kW solar kit includes (65) Axitec 385 XL model AC-385MH/144S Mono-Perc 144 cell modules, SMA Sunny Boy inverter, monitoring, rooftop mounting, system design, permit plan and safety labels. Up to 25 year manufacturers warranty and UL test certified...
    AXI385-25kW-SMA
    $30,550.00
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  • 25.1kW solar kit Silfab 380 XL, SMA inverter
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    25.1kW solar kit Silfab 380 XL, SMA inverter

    Silfab

    $30,550.00
    This high-quality 25.1 kW solar kit includes (66) Silfab 380 watt XL model SIL-380 NT Mono-Perc 72-cell modules, SMA Sunny Boy inverter, safety disconnect, monitoring, rooftop mounting, system design, permit plan and safety labels. The made in North...
    SIL380-25kW-SMA
    $30,550.00
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  • Trina 370 XL SMA Inverter Solar Kit
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    25.1kW solar kit Trina 370 XL, SMA inverter

    Trina Solar

    $31,050.00
    This high-power, low cost solar energy system generates 25.1kW (25160 watts) of grid-tied electricity with 68 Trina 370 watt XL monocrystalline modules with silver frame, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7 monitoring,...
    TSM370-25kW-SMA
    $31,050.00
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  • Q.Cells 400 XL Solar Kit with SMA Inverter
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    25.2kW solar kit Q.Cells 400 XL, SMA inverter

    Q CELLS

    $31,800.00
    This high-efficiency Q Cells solar power system generates 25.2kW (25200 watts) of grid-tied electricity with 63 Q Cells 400 watt XL monocrystalline modules with silver frames, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7...
    QC400-25kW-SMA
    $31,800.00
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  • Axitec 320 Solar Kit with SMA Inverter
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    25.2kW solar kit Axitec 320, SMA inverter

    Axitec Solar

    $32,300.00
    This Axitec Solar power system generates 25.2kW (25280 watts) of grid-tied electricity with 79 Axitec 320 watt monocrystalline modules, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7 monitoring, disconnect box, rooftop mounting,...
    AXI320-25kW-SMA
    $32,300.00
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  • Mission 375 XL Solar Kit with SMA Inverter

    25.1kW solar kit Mission 375 XL, SMA inverter

    Mission Solar Energy

    $32,350.00
    This grid-tied Mission Solar Energy PV system produces 25.1kW (25125 watts) of electricity with 67 Mission 375 watt monocrystalline XL modules, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7 monitoring, disconnect box, rooftop...
    MSE375-25kW-SMA
    $32,350.00
  • Trina 310 SMA Inverter Solar Kit
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    25.1kW solar kit Trina 310, SMA inverter

    Trina Solar

    $32,550.00
    This high-efficiency Trina Solar power system generates 25.1kW (25110 watts) of grid-tied electricity with 81 Trina 310 watt monocrystalline all-black modules, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7 monitoring, disconnect...
    TSM310-25kW-SMA
    $32,550.00
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  • 25kW solar kit Silfab 330 black, SMA inverter
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    25kW solar kit Silfab 330 black, SMA inverter

    Silfab

    $33,250.00
    This high-quality 25 kW solar kit includes (76) Silfab 330 watt all-black model SIL-330 BL Mono-Perc 126-cell modules, SMA Sunny Boy inverter, safety disconnect, monitoring, rooftop mounting, system design, permit plan and safety labels. The made in...
    SIL330-25kW-SMA
    $33,250.00
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  • Q.Cells 320 Solar Kit with SMA Inverter
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    25.2kW solar kit Q.Cells 320, SMA inverter

    Q CELLS

    $33,500.00
    This high-power Q Cells solar energy system generates 25.2kW (25280 watts) of grid-tied electricity with 79 Q Cells 320 watt monocrystalline all-black modules, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7 monitoring, disconnect...
    QC320-25kW-SMA
    $33,500.00
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  • Canadian 320 SMA Inverter Solar Kit
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    25.2kW solar kit Canadian 320, SMA inverter

    Canadian Solar

    $34,350.00
    This Canadian Solar power system generates 25.2kW (25280 watts) of grid-tied electricity with 79 Canadian 320 watt monocrystalline all-black modules, SMA Sunny Boy inverter with emergency power supply, Sunny Portal 24/7 monitoring, disconnect box,...
    CS320-25kW-SMA
    $34,350.00
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  • 25.3kW solar kit CSUN 390 XL, SolarEdge optimizers (CSUN390-25kW-SolarEdge)
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    25.3kW solar kit CSUN 390 XL, SolarEdge optimizers

    CSUN Solar

    $34,400.00
    This low cost 25.3 kW solar system generates 25350 watts of grid-tied DC power. The solar kit includes 65 CSUN 390 XL model CSUN390-72MH made in the USA solar panels, SolarEdge optimzers, inverters, monitoring and rooftop mounting. This is a total system...
    CSUN390-25kW-SolarEdge
    $34,400.00
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  • 25.2kW solar kit Trina 400 XL, SolarEdge HD optimizers
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    25.2kW solar kit Trina 400 XL, SolarEdge HD optimizers

    Trina

    $34,550.00
    This high-power, low cost solar energy system generates 25.2 kW of grid-tied electricity with (63) Trina 400 watt XL monocrystalline modules with silver frame, module optimizers, SolarEdge HD-wave inverter, 24/7 panel monitoring, disconnect box, safety...
    TSM400-25kW-SolarEdge
    $34,550.00
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Compare price and performance of the Top Brands to find the best 25 kW solar system with up to 30 year warranty. Buy the lowest cost 25 kW 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 30% 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 25kW Solar Kit

  • Up to 90 solar panels generate 3,200 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 1,650 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 25 kW PV systems for sale. These 25 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 25kW solar kit requires up to 1,650 square feet of space. 25kW or 25 kilowatts is 25,000 watts of DC direct current power. This could produce an estimated 3,200 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 25kW PV systems can generate.