Nationwide Shipping: We deliver anywhere in the U.S.!
Contact Financing (866) 798-4435
Get Free Estimate

4kW Solar Systems

Our 4 kW solar systems feature DIY solar kits, which will produce at least 4kW (or 4,000 watts) of power. This translates to approximately 300 to 750 kilowatt-hours (kWh) per month depending on your system choice, location and other factors.


Choose from a selection of 4kW solar kits with string inverters, microinverters, SolarEdge inverters as well as ground mount options. We sell both grid-tie and off-grid solar kits. Consider hiring a local contractor or installing your own solar panel kit for additional savings!

Request a quote

Frequently Asked Questions About 4kW Solar Systems

How much power can I get out of a 4kW Solar System?

Variables like weather, temperature, the age of your system and whether your panels are heavily soiled can affect how much power your solar system can produce. 

Generally, a 4kW solar system generates about 4,000 watts of Direct Current (DC) power. However, if you account for system losses incurred by the above variables, you could potentially decrease the efficiency of your solar panels by roughly 5%. 

How many panels does a 4kW solar kit contain?

The number of solar panels required to generate 4 kilowatts of energy hinges on the efficiency of your panels. Typically, you would need about 13 panels, but because GoGreenSolar panels are highly efficient, they can do the job with 10 panels.

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

A 4kW solar kit from GoGreenSolar requires about 230 square feet of space. 

Solar panels with string converters need to be grouped together and facing the same direction. You’ll want to consider whether this option is the right choice for you or if you’d be best served by solar panels with microinverters. 

Microinverters allow you to place panels in various locations, directions and angles on your roof. This choice will offer you more flexibility if space is at a premium.

Solar Calculator

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

Size My Solar System

Which Solar Kit Do I Need?

Not sure where to start? Take our solar panel kit questionnaire to find the best system for your home and energy needs.

Find Your Solar Kit

GET STARTED WITH SOLAR

WE’LL HELP YOU FIGURE OUT YOUR SOLAR NEEDS!

Fill out the form for a complimentary solar quote that includes a custom satellite layout, system design and a breakdown of total project cost and estimated savings.