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40kW Solar System

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Grid-tie
40 kW

40 kW Roof-top Grid-tie system with microinverters

  • System size40kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
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Grid-tie
40 kW

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

  • System size40kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
40 kW

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

  • System size40kW
  • Installation typeRoof-top
  • System typeGrid-tie
  • Inverter typeString
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Off-grid
40 kW

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

  • System size40kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
40 kW

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

  • System size40kW
  • Installation typeRoof-top
  • System typeOff-grid
  • Inverter typeString
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Hybrid
40 kW

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

  • System size40kW
  • Installation typeRoof-top
  • System typeHybrid
  • Inverter typeString
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Grid-tie
40 kW

40 kW Ground-mounted Grid-tie system with microinverters

  • System size40kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
40 kW

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

  • System size40kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeMicroinverter
FREE SHIPPING
Grid-tie
40 kW

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

  • System size40kW
  • Installation typeGround-mounted
  • System typeGrid-tie
  • Inverter typeString
FREE SHIPPING
Off-grid
40 kW

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

  • System size40kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeMicroinverter
FREE SHIPPING
Off-grid
40 kW

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

  • System size40kW
  • Installation typeGround-mounted
  • System typeOff-grid
  • Inverter typeString
FREE SHIPPING
Hybrid
40 kW

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

  • System size40kW
  • Installation typeGround-mounted
  • System typeHybrid
  • Inverter typeString

40kW solar system

Getting your own solar system is like acquiring a great business asset and making a smart long-term investment. In this section of our website you can find a 40kW solar system of your preference. A PV installation is more than just solar panels though, and the components should match to function well together. We offer systems where all the parts are sized perfectly to work as one entity.

What is a 40 kw solar system

PV systems of a large scope are usually ground-based grid-tie installations. Grid-tie configuration means that you’re free to use solar energy and electricity from the commercial grid at the same time. You can sell solar energy to your utility to make your electric meter go backwards. It’s called net metering and it's the main way in which a 40 kilowatt solar system pays for itself.

Grid-tie systems are the simplest in terms of components of a kit. You only need solar panels and an inverter. To build a 40000 watt solar system you would need from 60 to 130 PV modules, depending on their wattage. If space is an issue, you can go for bifacial solar panels. Their active rear side also generates electricity and provides up to 33% bonus to the rated production of the front side. However, proper installation is very important to increase the reflectivity of a surface and the bifacial gain. The 40kw solar system size will in the end depend on the panels that you’ll choose.

When it comes to production of your system, several factors come into play, such as weather, positioning and tilt of your panels, number of sun hours in the area, shading and, of course, the properties of the panels themselves. In June panels produce around 50% more energy than in December. In California 180-220 kWh is how much does 40kw solar system produce per day. However, the production levels are going to be lower, for instance, in New York where there is less sunlight.

While grid-tie configuration is the most common choice, you can also go for hybrid or off-grid design. The problem with a 40kw solar system with batteries is getting storage of a capacity that is large enough. Battery storage provides backup during power outages in the grid. However, it’s going to greatly increase your expenses.

40kw solar system cost

Ground-based systems are cheaper to install than rooftop ones. However, they require a lot of free land that could be used for something else instead. The cost of 40kw solar system is going to depend on the configuration and the panels that you’ll use.

Chinese solar panels are the most common choice for large systems because they are the cheapest and have high efficiency numbers. Look for brands like Jinko Solar, JA, Trina, Longi Solar to construct your 40 kwh solar system. American-made panels from brands like Mission Solar, Silfab, Aptos Solar are slightly more expensive, but the warranties for them are often better. Premium-class panels from LG, Panasonic, Sunpower are usually not an option for installations of such a scope — they are simply too expensive.

The configuration is also going to impact your 40kw solar system price. Grid-tie design is the simplest and the cheapest and it guarantees steady income if net metering is available. Hybrid installations are a bit more costly since you’ll have to add energy storage. The 40kw off grid solar system price is going to be the highest among these three, and you also don’t have a net metering option.

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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