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Solar panel systems

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Grid-tie
1 kW

1 kW Roof-top Grid-tie system with microinverters

  • System size1kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
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Grid-tie
1 kW

1 kW Roof-top Grid-tie system with microinverters and battery

  • System size1kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
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Grid-tie
1 kW

1 kW Roof-top Grid-tie system with string inverter

  • System size1kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeString
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Off-grid
1 kW

1 kW Roof-top Off-grid system with microinverters and battery

  • System size1kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeMicroinverter
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Off-grid
1 kW

1 kW Roof-top Off-grid system with string inverter and battery

  • System size1kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeString
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Hybrid
1 kW

1 kW Roof-top Hybrid system with string inverter and battery

  • System size1kW
  • Installation typeRoof-top
  • System typeHybrid
  • Inverter typeString
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Grid-tie
1 kW

1 kW Ground-mounted Grid-tie system with microinverters

  • System size1kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
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Grid-tie
1 kW

1 kW Ground-mounted Grid-tie system with microinverters and battery

  • System size1kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
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Grid-tie
1 kW

1 kW Ground-mounted Grid-tie system with string inverter

  • System size1kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeString
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Off-grid
1 kW

1 kW Ground-mounted Off-grid system with microinverters and battery

  • System size1kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeMicroinverter
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Off-grid
1 kW

1 kW Ground-mounted Off-grid system with string inverter and battery

  • System size1kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeString
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Hybrid
1 kW

1 kW Ground-mounted Hybrid system with string inverter and battery

  • System size1kW
  • Installation typeGround-mounted
  • System typeHybrid
  • Inverter typeString
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Grid-tie
2 kW

2 kW Roof-top Grid-tie system with microinverters

  • System size2kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
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Grid-tie
2 kW

2 kW Roof-top Grid-tie system with microinverters and battery

  • System size2kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
2 kW

2 kW Roof-top Grid-tie system with string inverter

  • System size2kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeString
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Off-grid
2 kW

2 kW Roof-top Off-grid system with microinverters and battery

  • System size2kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeMicroinverter
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Off-grid
2 kW

2 kW Roof-top Off-grid system with string inverter and battery

  • System size2kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeString
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Hybrid
2 kW

2 kW Roof-top Hybrid system with string inverter and battery

  • System size2kW
  • Installation typeRoof-top
  • System typeHybrid
  • Inverter typeString
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Grid-tie
2 kW

2 kW Ground-mounted Grid-tie system with microinverters

  • System size2kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
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Grid-tie
2 kW

2 kW Ground-mounted Grid-tie system with microinverters and battery

  • System size2kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
2 kW

2 kW Ground-mounted Grid-tie system with string inverter

  • System size2kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
2 kW

2 kW Ground-mounted Off-grid system with microinverters and battery

  • System size2kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
2 kW

2 kW Ground-mounted Off-grid system with string inverter and battery

  • System size2kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
2 kW

2 kW Ground-mounted Hybrid system with string inverter and battery

  • System size2kW
  • Installation typeGround-mounted
  • System typeHybrid
  • Inverter typeString
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Grid-tie
3 kW

3 kW Roof-top Grid-tie system with microinverters

  • System size3kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
3 kW

3 kW Roof-top Grid-tie system with microinverters and battery

  • System size3kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
3 kW

3 kW Roof-top Grid-tie system with string inverter

  • System size3kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
3 kW

3 kW Roof-top Off-grid system with microinverters and battery

  • System size3kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
3 kW

3 kW Roof-top Off-grid system with string inverter and battery

  • System size3kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
3 kW

3 kW Roof-top Hybrid system with string inverter and battery

  • System size3kW
  • Installation typeRoof-top
  • System typeHybrid
  • Inverter typeString
FREE SHIPPING
Grid-tie
3 kW

3 kW Ground-mounted Grid-tie system with microinverters

  • System size3kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
3 kW

3 kW Ground-mounted Grid-tie system with microinverters and battery

  • System size3kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
3 kW

3 kW Ground-mounted Grid-tie system with string inverter

  • System size3kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
3 kW

3 kW Ground-mounted Off-grid system with microinverters and battery

  • System size3kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
3 kW

3 kW Ground-mounted Off-grid system with string inverter and battery

  • System size3kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
3 kW

3 kW Ground-mounted Hybrid system with string inverter and battery

  • System size3kW
  • Installation typeGround-mounted
  • System typeHybrid
  • Inverter typeString
FREE SHIPPING
Grid-tie
4 kW

4 kW Roof-top Grid-tie system with microinverters

  • System size4kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
4 kW

4 kW Roof-top Grid-tie system with microinverters and battery

  • System size4kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
4 kW

4 kW Roof-top Grid-tie system with string inverter

  • System size4kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
4 kW

4 kW Roof-top Off-grid system with microinverters and battery

  • System size4kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
4 kW

4 kW Roof-top Off-grid system with string inverter and battery

  • System size4kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
4 kW

4 kW Roof-top Hybrid system with string inverter and battery

  • System size4kW
  • Installation typeRoof-top
  • System typeHybrid
  • Inverter typeString
FREE SHIPPING
Grid-tie
4 kW

4 kW Ground-mounted Grid-tie system with microinverters

  • System size4kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
4 kW

4 kW Ground-mounted Grid-tie system with microinverters and battery

  • System size4kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
4 kW

4 kW Ground-mounted Grid-tie system with string inverter

  • System size4kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
4 kW

4 kW Ground-mounted Off-grid system with microinverters and battery

  • System size4kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
4 kW

4 kW Ground-mounted Off-grid system with string inverter and battery

  • System size4kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
4 kW

4 kW Ground-mounted Hybrid system with string inverter and battery

  • System size4kW
  • Installation typeGround-mounted
  • System typeHybrid
  • Inverter typeString
FREE SHIPPING
Grid-tie
5 kW

5 kW Roof-top Grid-tie system with microinverters

  • System size5kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
5 kW

5 kW Roof-top Grid-tie system with microinverters and battery

  • System size5kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
5 kW

5 kW Roof-top Grid-tie system with string inverter

  • System size5kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
5 kW

5 kW Roof-top Off-grid system with microinverters and battery

  • System size5kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
5 kW

5 kW Roof-top Off-grid system with string inverter and battery

  • System size5kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
5 kW

5 kW Roof-top Hybrid system with string inverter and battery

  • System size5kW
  • Installation typeRoof-top
  • System typeHybrid
  • Inverter typeString
FREE SHIPPING
Grid-tie
5 kW

5 kW Ground-mounted Grid-tie system with microinverters

  • System size5kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
5 kW

5 kW Ground-mounted Grid-tie system with microinverters and battery

  • System size5kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
5 kW

5 kW Ground-mounted Grid-tie system with string inverter

  • System size5kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
5 kW

5 kW Ground-mounted Off-grid system with microinverters and battery

  • System size5kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
5 kW

5 kW Ground-mounted Off-grid system with string inverter and battery

  • System size5kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
5 kW

5 kW Ground-mounted Hybrid system with string inverter and battery

  • System size5kW
  • Installation typeGround-mounted
  • System typeHybrid
  • Inverter typeString

Solar panel systems

Solar system for home or a business is made out of several components that have to be picked and sized correctly to match together. To make this task simpler for our customers, we offer complete systems where all the parts already fit each other well. If you want to learn how to choose solar power systems — keep reading!

There are three types of systems: grid-tie, off-grid, hybrid

The grid-tie solar power system is the most popular configuration. Most home systems and almost every commercial system are like that. Having a grid-tie system means that your house or an office building is connected to the commercial grid, but you use solar panels simultaneously. 

The main benefit of a grid-tie system is the option of net metering. Not only can you use solar energy instead of commercial electricity, you can also pump unused solar power into the grid. This makes your electrical meter go backwards. Net metering is the main way in which a solar energy system pays for itself. The drawback of a grid-tie configuration is that the system shuts down once the power outage occurs. The reason for this is a safety protocol — there must be no current in the grid for workers to repair it.

Off-grid system

Off-grid system is the opposite of a grid-tied one. Your house isn’t connected to the grid at all, and you rely solely on your solar panels. This configuration requires batteries which will power everything at night and on especially gloomy days, when panels don’t generate enough energy. This is a popular solar panels system design for houses in remote locations and mobile installations: RV and boat solar systems. The advantage of an off-grid system is full autonomy, since you aren’t connected to the grid. The downside of an off-grid solar panel system is the absence of the net metering option and the high cost of batteries. 

Hybrid system

Hybrid solar systems took the best of the two other options. Your house is connected to the grid and you can sell your solar energy into it. However, you also have an energy storage which serves as a backup in case of a power outage. Having an uninterrupted power supply can be very important for those who work from home. Hybrid solar systems require a special type of inverters that function with or without grid connection. Sometimes these hybrid inverters have a built-in battery. 

Parts of solar system may vary

The components of solar system kits differ in grid-tie, off-grid and hybrid systems. However, solar panels and inverters remain essential.

PV modules

No solar power system exists without, well, solar panels themselves. The most dominant type of panels is monocrystalline. Mono-panels last for over 25 years and they are more efficient in comparison to polycrystalline and thin-film modules. 

The panels for home installations generally range from 300 W to 400 W in power output. The size of one module is around 39 × 66 inches. Panels for commercial and industrial installations reach 600 W in output and their size is larger (depends on the wattage). The division of panels on commercial and residential is conventional though — you can put on your roof anything you want, as long as there is enough room for it. Generally, a home solar energy system needs 12-30 panels.

Solar panel system cost heavily depends on the panels and especially their brand. Chinese panels are the cheapest. The PV modules from NA are average in terms of the cost. There are also a few brands with premium-class panels, such as REC, Panasonic and Solaria.

Inverters

Inverter is another essential part of solar energy kits. It performs several functions in a system:

  • Inverter converts DC from panels to AC for your appliances;
  • It interacts with the grid and acts as a protection barrier;
  • It monitors the production of your system.

Whichever design you went for, you’ll need an inverter to use current that is coming from your PV modules. However, each configuration requires a different inverter. There are grid-tie inverters which can’t function without grid connection and which usually don’t support batteries. There are off-grid inverters which aren’t designed to work with a grid. Finally, there are hybrid inverters that can work with or without a grid. They can be paired with batteries and sometimes they have built-in energy storage. 

There are different types of inverters: string ones, central inverters and microinverters. String inverters are the cheapest and they are the most common option in solar panel kits. Central inverters are used in commercial systems of a large scope. Microinverters are a special case: each microinverter goes on top of a single panel and converts DC to AC on the spot. They are easy to install, very efficient and sturdy but they end up being more expensive. 

Batteries

Batteries allow you to store the energy that your solar panels generate. You can use it at night or at times when electricity rates are high and panels don’t produce enough. 

Batteries are usually a part of an off-grid solar panel kit. When you rely only on solar power, batteries are what powers everything at night. Grid-tie inverters usually don’t support energy storage, but you can hook up batteries to a sub electrical panel for critical loads in case of a power outage. 

There are several kinds of batteries on the market. In the past lead-acid batteries were the most dominant. However, lithium-ion batteries are more advanced. Their efficiency, depth of discharge and longevity are much higher than those of gel and lead-acid batteries. The cost is what held Li-Ion energy storage back before, but in the last few years the average price for it has gone down. 

Charge controllers

Solar regulators, also known as charge controllers, are often overlooked, but they are an important piece of the solar panels system, whenever you add batteries to it. Controllers significantly prolong the lifespan of your battery and it’s much cheaper to get one than to buy a new energy storage every few years. Here is what the controller does:

  • Regulator lowers down the voltage that is coming from PV modules to the safe level for the battery;
  • It disconnects the battery from panels to prevent overcharge and doesn't let the appliances draw the energy when the battery is close to being discharged;
  • It monitors the charge and voltage of the battery at all times.

Charge controllers usually come in off-grid solar panel kits. Hybrid inverters with an integrated battery generally have a built-in regulator. 

Wiring

Wires usually don’t make a part of solar power kits and for good reasons. Their thickness and length can differ so much depending on the size and configuration of your system that it only makes sense to purchase them yourself or leave the task to the installer. You can consult with your contractor about the wiring or check out our guides on wires and connectors for solar panels.

Why buy from us

We offer a variety of different solar panel systems for sale. You can pick the system of the right size for your particular situation. Here are the reasons to buy from A1SolarStore:

  • Our fulfillment centers are located on East and West coast of United States
  • We process all orders in 24 hours and ship them in 48 hours
  • Freight transport delivers orders in 4-7 business days
  • We sell A-grade equipment only from verified manufacturers — no counterfeit products
  • We offer affordable pricing on all solar energy equipment

If you are interested, don’t hesitate to contact us. Our managers are always happy to answer any questions concerning solar panel kits for sale, their cost, warranties and shipping options.

Frequently Asked Questions

How do I choose the right system size?
Your utility bills contain the energy consumption data for your home. All you need to do is divide the daily figure by the number of peak sun hours in your area. The result will be a gross estimate of a system size needed to offset 100% of your energy needs. Please refer to our article on sizing solar panel systems for more detailed instructions.
How do I know if a system is good for my house?
You can browse through our catalog and pick a system with desired power output and functionality. Our engineer with 20+ years of experience will adapt it based on the information you provide. He will take into account your location, roof pitch, house orientation and other factors. You don’t need to know a single thing about solar – we will support you at every stage.
Which system (grid-tie, off-grid or hybrid) will work for me the best?
It is impossible to give a good recommendation without knowing any details, but we can share the general principles. A grid-tie system is the standard choice: it is the most affordable and lets you take advantage of net metering. You need an off-grid system if the grid is unavailable or full independence is desired. A hybrid system is a mix of the two, performing equally well with and without a grid connection. You can find a more nuanced take on the difference among the three types in our article.
Does a solar system include all that is needed for installation?
Yes, our systems include absolutely all components. You won’t need to buy any extra parts to install it and start generating power.
Will you install the solar panel system for me?
Currently we do not provide installation services. You will need to contact an independent solar installer.
Do you offer a warranty for your solar panel systems?
All components of our systems come with a manufacturer’s warranty. We also stand behind the work of our engineers who configure the systems and guarantee full compatibility.
How can I get my system?
We work with the top freight carriers like XPO, FedEx, ODFL, R&L, etc. We also offer a free pickup option so that our clients could get the equipment cheaper and faster. Note that pickup is dependent on the availability of equipment in our fulfillment centers, and may not be feasible in your location.
Do deliveries of solar panel systems take longer?
We deliver our systems as fast as the rest of our equipment. Typically it takes 5 to 7 days.
Do you have all the displayed systems in stock?
Yes, we offer full transparency and update the availability of items in real time.
What is the benefit of buying a solar panel system compared to buying all the equipment element by element?
Our systems are configured by an engineer with more than 20 years of experience. We will adapt the kit to your conditions and ensure compatibility.
Does a solar panel system come with a plan or a manual?
The equipment manufacturers normally provide user manuals for their products. These can be accessed via our website or the official websites of the respective manufacturers. Aside from that, we do not provide any other materials, but we're ready to consult you along the way.

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