- By: Maria Skornyakova
- Batteries
- Updated: Apr 15, 2026
Best Deep Cycle Battery: How to Choose the Right One for Your Needs
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5 kW Roof-Top Grid-Tie System with Microinverters and Battery Backup
5 kW Roof-Top Grid-Tie System with String Inverter
5 kW Ground-Mounted Off-Grid System with String Inverter and Battery
5 kW Ground-Mounted Hybrid System with String Inverter and Battery
5 kW Roof-Top Grid-Tie System with Microinverters
5 kW Roof-Top Off-Grid System with String Inverter and Battery
5 kW Roof-Top Hybrid System with String Inverter and Battery
5 kW Ground-Mounted Grid-Tie System with String Inverter
5 kW Ground-Mounted Grid-Tie System with Microinverters
5 kW Ground-Mounted Grid-Tie System with Microinverters and Battery Backup
Around 10% of households in the US already have solar panels and the majority of Americans strongly favor expanding use of solar power. The average size of a home solar panel system in the United States of America is 5-6 kW. If you don't want to waste time picking the panels and the right equipment for them yourself, we offer complete 5kw solar panel kits for sale that are ready for installation.
Solar system generates energy to power your appliances during the daytime. However, with a grid-tie installation you can also use the energy from the commercial grid. You can also pump excess energy from panels into the grid, and the utility will grant you credits for it to pay your bills for night energy consumption. This is called net metering and this is the main way in which a solar panel system brings you money.
A 5 kw solar system in the US generally pays for itself in 6-8 years. However, the ROI depends on electricity prices in your area, number of peak sun hours and net metering policy in the state. For instance, the average number of peak sun hours in California is at around 5.6, whereas in New York it’s closer to 3.5. Thus a 5kW solar system in Los Angeles is going to produce around 30 kWh of energy per day and pay for itself in 4-5 years. However, the ROI of a system in New York can be pretty fast as well: although it’s not going to produce as much power, electricity rates there are higher.
While the 5 kwh solar system is usually used as a grid-tie installation, it can be a great solution for a house in a remote location where there are no power lines. By adding batteries, you can ensure energy supply during night hours and on cloudy days, not to mention complete independence from utility companies. However, a 5kw solar system with battery backup price is going to be higher than the standard grid-tie option.
Solar panels have been continuously getting cheaper in the last 10 years and lost around 80% of their cost since 2010. The US government and utility companies encourage people to go solar and even offer incentives to make the switch to solar easier for citizens. The biggest incentive we have is Solar Tax Credit: in 2022 you can get 26% of your installation cost back through taxes.
So how much is a 5kw solar system? Today it can come at around $7,000-12,000 after taking into account Solar Tax Credit. A decade ago you could pay over $15,000 and up to $20,000 for the system of the same capacity, not to mention that the panels were less efficient back then and thus the installation would require much more space. However, 5kw solar system prices may vary drastically, depending on the design. Grid-tie system is the cheapest option, hybrid is slightly more expensive and the necessity for batteries makes off-grid installation a bit pricey as well.
The price of 5kw solar system heavily depends on the panels and especially their brand. If you are looking for the cheapest option possible, you want to get your hands on panels from Chinese manufacturers, such as Trina, JA, Jinko Solar. The motto of these brands is to make PV modules as inexpensive and as efficient as possible. North American manufacturers, such as Canadian Solar, Aptos and Mission Solar offer panels for a medium price. Finally, there are brands that offer premium-class PV models: REC, Panasonic, LG, Solaria. Their panels stand out in one way or another, they come with superb warranties, but they do cost a lot.
Grid-tie installations are the cheapest ones, whereas hybrid systems at least require a special high-tech inverter that sometimes has a built-in battery. A 5kw off grid solar system price is going to heavily depend on batteries. Lead-acid energy storage is cheap but it’s not very modern. Lithium-ion batteries show the highest efficiency, great longevity and depth of discharge but they are a bit pricey.
These are essential parts of a grid-tie 5kw solar power system. However, when going for an off-grid option you’ll also need:
Please note that 5kw solar panel kits include only the minimum amount of wires. The size and length of cables and wires that you need may vary greatly, depending on your circumstances and there isn't a solution to every possible case. When in doubt, consult with your installer about the type, size and length of cables and wires that you need.
A solar panels 5kw kit also doesn’t include racking and mounting, which again depends on your situation. You can look up mounting and racking equipment in a special section of our website.
Don’t forget that your roof has to be examined before the installation and you’ll most likely need a permit to put solar panels on your roof. Generally solar contractors handle all sorts of paperwork associated with the installation. A 5,000 kwh solar system may take from several weeks to a month and a half to install. An experienced solar installer can put a solar system on the top of your house without interfering with your daily life too much.
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