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15kW Solar Systems

Cut down your reliance on the grid and high electricity bills with our 15kW solar systems. Generating approximately 1,400 to 3,000 kWh of energy each month, 15kW solar systems are perfect for homeowners with larger homes and higher electricity needs.

Select from an array of 15kW solar systems, including grid-tie with or without batteries and off-grid options. Or reach out to our experts for a custom solar system!

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15kW Solar Systems

What’s in a 15kW 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 15kW Solar Systems

How much power can I get out of a 15kW solar system?

The amount of power you can generate from a 15kW solar system depends on various factors, including weather conditions, temperature fluctuations, and panel cleanliness. On average, a 15kW solar system can produce approximately 1,400 to 3,000 kWh of AC power a month. Or around 60-75 kWh per day in a location with good sunlight conditions.

Is 15kW enough to power a house?

Yes! A 15kW solar system is typically more than enough to effectively power a medium to large home. The production power of a 15kW solar system exceeds the average monthly electricity consumption in the United States, which averages at 920 kWh. Actual electricity usage may vary depending on factors like home size and energy consumption habits.

This substantial capacity provides a dependable and sustainable power source, making the 15kW solar system an excellent choice for larger homes with heightened energy needs that aim to decrease or eliminate their reliance on the grid, and thus their electricity bills.

What appliances can a 15kW solar system power?

A 15kW solar system can power all household appliances, including:

  • Lights: Light up a larger home with numerous energy-efficient bulbs.
  • Energy-Efficient Appliances: Run multiple appliances, including refrigerators, ovens, washing machines and dryers.
  • Entertainment Systems: Power home theaters, gaming setups, and multiple televisions.
  • HVAC: Support central air conditioning and heating systems for optimal comfort.
  • EV Charging: Charge several electric vehicles.

It's important to note that the capacity of a solar system is only one factor. Energy storage (such as batteries) is also crucial for powering appliances during the night or on cloudy days.

Overall, 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 assess your situation and provide tailored recommendations.

How many panels are needed for a 15kW solar system?

The number of solar panels required to generate 15 kilowatts of energy depends on the panels’ efficiency. Typically, you would need about 50 to 60 standard efficiency panels. However, GoGreenSolar solar kits include higher efficiency panels that can achieve the desired result with as few as 38 panels.

Do I need battery storage for a 15kW solar system?

Whether you need a 15kw solar system with battery backup 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 significantly.

A 15kW solar energy system would typically be enough to power your home autonomously. However, you will need solar batteries to store excess energy and later use it 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 15kW ground-mount solar system, you'll need approximately 874 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 15kW solar system.

What’s the cost of a 15kW solar kit?

A GoGreenSolar 15kW residential solar energy system starts at just over $24,500, not including installation. While there are many variables involved, like what State you live in and what rebates are available, going the DIY route with installation is a great way to save thousands of dollars on the total cost of your system. 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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