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20kW Solar Systems

Achieve energy independence with our 20kW solar systems. Generating approximately 2,000 to 3,000 kWh of AC power a month, 20kW solar systems are ideal for large households with several EVs and huge energy demands.

Choose from a selection of grid-tie and off-grid 20kW solar systems, or get in touch with our experts for a custom system!

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20kW Solar Systems

What’s in a 20kW solar kit

*Exclusions apply, see Terms and Conditions.

  • Solar Panels

    Our premium solar panels are backed by top-notch technical assistance from our team of solar specialists.

  • IronRidge Racking

    IronRidge builds the strongest roof and ground mounting systems in solar. Every component has been tested to the limit and proven in extreme environments.

  • Inverters

    A microinverter or string inverter to convert solar panel DC power to AC power and provide net metering capability.

  • Monitoring System

    Monitoring apps oversee your solar production, helping you catch issues early to ensure efficient system performance and cost savings.

  • Batteries

    Our state-of-the-art batteries enable you to store surplus energy generated during the day, utilizing it during nighttime or peak demand periods to maximize your energy savings.

  • Plan Set & Interconnection Service

    We can create a custom solar electrical design for your home that’s compliant with local codes and regulations. We’ll work closely with your city, HOA and utility to get your system up and running.

Frequently Asked Questions about 20kW Solar Systems

How much power can I get out of a 20kW solar system?

Variables like weather, temperature, system age, and panel cleanliness can affect how much power your solar system can produce. At its highest output, a 20kW solar panel system produces about 80 kWh per day. Considering possible system losses caused by these factors, you might experience an efficiency reduction of approximately 5% under certain conditions.

Is 20kW enough to power a house?

Yes! A 20kW solar system is a relatively large system and usually more than sufficient to power a standard home. A 20kW system greatly surpasses the average monthly electricity consumption in the United States, which is around 920 kWh. Keep in mind that usage can vary significantly based on home size and energy consumption. This substantial capacity allows for a reliable and sustainable power source, making it an excellent choice for large houses with high energy needs looking to reduce or eliminate their dependence on the grid.

What appliances can a 20kW solar system power?

A 20kW solar system has the capacity to power a variety of household appliances, making it a robust choice for energy independence. Here are examples of appliances that a 20kW solar system can typically power:

  • Lights: Light up a larger home with numerous energy-efficient bulbs.
  • Appliances: Run multiple high-energy appliances, including large refrigerators, ovens, washing machine and dryer, etc.
  • Entertainment Systems: Power home theaters, gaming setups, and multiple televisions.
  • Temperature Control: Support central air conditioning and heating systems for optimal comfort.
  • EV Charging: Charge more electric vehicles.

The specific appliances and what exactly can be powered depends on factors like the system's efficiency, local sunlight conditions, and individual energy consumption habits. Consult with a GoGreenSolar professional to tailor a system to your specific needs.

How many panels are needed for a 20kW solar system?

The number of solar panels required to generate 20 kilowatts of energy hinges on the efficiency of your panels. Typically, you would need about 55 to 60 standard efficiency panels, but GoGreenSolar solar kits include higher efficiency panels that can get the job done with as few as 50 panels.

Do you need battery storage for a 20kW solar system?

Whether you need battery storage for a 20kW solar system depends on your goals. If you have grid access and just want to reduce your energy bill, battery storage is optional but recommended. Incorporating battery storage into your solar system is a reliable and effective way to store surplus solar energy for later use. Battery storage enhances self-reliance, diminishes dependence on the electrical grid and cuts energy costs.

A 20kW solar energy system can enable you to power your home autonomously. However, you will need solar batteries to store excess energy during periods when sunlight is limited or absent, like at night or on cloudy days.

Check our buyer’s guide to understand more: How to Choose Solar Batteries for Your Home

How much space will the solar panels take on my roof or ground?

The space required for solar panels depends on the specific panels you choose and their efficiency. For a 20kW ground-mount solar system, you'll need approximately 1,150 square feet of unobstructed ground-site space. However, when considering rooftop installation, the space needed can vary based on factors like panel efficiency, local sunlight conditions, and the specific layout of your roof.

A GoGreenSolar professional can assess your roof's dimensions, orientation, and shading factors to determine the optimal arrangement for your 20kW solar system.

What’s the cost of a 20kW solar kit?

A GoGreenSolar 20kW residential solar energy system starts at just over $31,000, not including installation. While there are many variables involved, like system size, what state you live in and what rebates are available, going the DIY route with installation is a great way to save significantly on the total cost of your system.

Going DIY can save you $10,000 or more, depending on system size. Tax credits still apply for equipment, hardware and any other installation services you utilize.

Solar Calculator

Use our easy solar panel calculator to get a quick estimate of how many solar panels you’ll need for your home.

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Which Solar Kit Do I Need?

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