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For many households in the United States, a 4.5 kW solar system is the right size to cut electricity costs significantly. Want to know the best way to ensure you''re getting the right price for your solar panel installation and maximizing your long-term savings? Compare your solar quotes with the prices other solar shoppers paid for their 4.5 kW solar systems near you. Learn more about the cost of a 4.5 kW solar system, how much electricity your 4.5 kW system can produce, and the smartest way to shop for solar.
As of January 2022, the average cost of solar in the U.S. is $2.77 per watt ($12,465 for a 4.5-kilowatt system). That means the total cost for a 4.5 kW solar system would be $9,224 after the federal solar tax credit (not factoring in any additional state rebates or incentives).
We used data from the EnergySage Solar Marketplace to analyze the price range quoted to solar shoppers for 4.5 kW solar energy systems across the United States. On EnergySage, homeowners compare offers from solar installers to shop for the right home solar panel system at the right price.
The prices in the table below represent what homeowners pay for a 4.5 kW solar energy system before the federal tax credit for solar has been deducted. In some parts of the United States, additional solar rebates and incentives from the state government, local government, or utilities can reduce your upfront costs even further. Some states also have a market for solar renewable energy certificates (SRECs), meaning you earn additional income by selling the SRECs your system generates.
Even if you live in an area without additional solar incentives or rebates, you can ensure that you get the best price for your solar panel system by reviewing offers from multiple solar companies. Homeowners who compare solar offers on the EnergySage Solar Marketplace can save 20 percent simply by shopping around for the best solar option for their homes.
While these numbers are a good starting point, remember that many factors determine the cost of a solar energy system. More efficient equipment or special accommodations for your roof are just two factors that can impact system price. If you see an offer from a solar company significantly higher or lower than the range for a 4.5 kW solar system in your state, simply ask them for an explanation. Reputable solar installers will be able to walk you through their proposal in detail.
It should come as no surprise that the amount of sunshine where you live is the most important factor determining how much electricity your solar panels produce. For example, if you install a 4.5 kW solar panel system on your roof in Las Vegas, you''ll produce about 30 percent more electricity than if you installed the same system on a roof in Philadelphia. However, that doesn''t mean you have to live in Nevada for solar to be a good option for your home – solar is a wise investment wherever electricity rates are high.
In the table below, you''ll find estimated average electricity production numbers for 4.5 kW solar energy systems in cities across the United States. As a comparison, the average U.S. household uses 893 kilowatt-hours (kWh) a month, a total of 10,715 kWh per year. We used PV Watts, a National Renewable Energy Laboratory tool, to develop these estimates.
Ready to get started? When you shop for solar through the EnergySage Solar Marketplace, you can review multiple offers from solar companies and find the best offer for your solar installation. The EnergySage Marketplace offers comprehensive, easy-to-understand comparison tables, making comparing equipment options, financing offers, and solar company reviews easy. When you compare multiple solar quotes, you can feel confident that you''re making the smartest investment possible for your home.
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One of the most significant advantages of installing a 4.5kW solar system is the potential cost savings. On average, a 4.5kW solar system can save you up to $1,396 per year. Over the 25-year lifetime of the solar panels, this can add up to a total savings of $34,903.
The cost of electricity has been steadily increasing over the past few decades, making solar energy an even more attractive option. According to the U.S. Bureau of Labor Statistics, electricity costs have increased by 270% over the past 40 years. This rise in electricity costs is shown in the graph below:
Source: U.S. Bureau of Labor Statistics
By generating your own electricity through a 4.5kW solar system, you can significantly reduce your reliance on utility companies and decrease your monthly electricity bills. The more self-generated electricity you use, the less you pay utility companies.
Not only can you save on electricity bills, but with a 4.5kW solar system, you can also potentially generate additional income. Any excess electricity generated that you don’t use can be sold back to the grid. This means that you can earn a return on your investment of up to 20% per year, based on the current electricity costs.
The cost of a 4.5kW solar system will vary based on various factors such as location, installation complexity, and equipment used. However, as a rough estimate, the typical cost for a 4.5kW solar system is around $9,000. It’s important to note that solar panel prices have come down substantially over the past 10 years, making them more affordable and accessible.
For those looking to have a backup power supply during periods of low sunlight or power outages, adding battery storage to a 4.5kW solar system is a great option. Two common types of batteries used are lead-acid and lithium polymer.
When sizing lead-acid batteries for a 4.5kW solar system, you would need approximately 54 kWh (4.5kWh x 2 for 50% depth of discharge x 1.2 inefficiency factor). On the other hand, lithium polymer batteries only require 28 kWh (4.5kWh x 1.2 for 80% depth of discharge x 1.05 inefficiency factor). Considering the higher efficiency and longer lifespan of lithium batteries, they are highly recommended as they require half as many batteries compared to lead-acid.
To reduce costs, it’s advisable to purchase batteries and solar panels together as a bundle.
An off-grid solar system operates independently from the power grid, making it an ideal choice for remote locations or individuals seeking complete energy independence. To run a 4.5kW off-grid solar system, you would typically need to purchase 15 or more solar panels. Additionally, approximately 28 kWh worth of lithium polymer batteries would be required to store enough energy for a full cycle.
Considering the cost of batteries required, a 4.5kW off-grid solar system would have a typical battery cost of $13,325.
If you need different power requirements, check out 4.2 kW solar systems
Each solar panel has a footprint of approximately 17 square feet. As a result, a 4.5kW solar system with 15 panels would have a total footprint of 255 square feet.
There are also 5 kW solar systems if you need a different sized system.
The number of batteries required for a 4.5kW solar panel system depends on the type of battery used, such as lead-acid or lithium. If you opt for the recommended lithium polymer batteries, you would need approximately 28 kWh worth of batteries. It is possible to buy a single battery system or wire several batteries of smaller sizes together to meet this requirement.
Considering the potential cost savings and the ability to generate and sell excess electricity, a 4.5kW solar system is a worthwhile investment. By installing a 4.5kW solar system in an area with good sunlight, you can generate approximately $1,396 worth of electricity per year. This translates to a 20% return on investment based on the current cost of panels, which is around $9,000 for this system.
In conclusion, a 4.5kW solar system offers substantial potential savings, reduced reliance on utility companies, and the possibility of generating additional income. As solar panel prices continue to decrease and the benefits of renewable energy become more evident, investing in a 4.5kW solar system is a wise decision for homeowners looking to embrace clean and sustainable energy.
About 4 5 kw solar system
As the photovoltaic (PV) industry continues to evolve, advancements in 4 5 kw solar system have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.
When you're looking for the latest and most efficient 4 5 kw solar system for your PV project, our website offers a comprehensive selection of cutting-edge products designed to meet your specific requirements. Whether you're a renewable energy developer, utility company, or commercial enterprise looking to reduce your carbon footprint, we have the solutions to help you harness the full potential of solar energy.
By interacting with our online customer service, you'll gain a deep understanding of the various 4 5 kw solar system featured in our extensive catalog, such as high-efficiency storage batteries and intelligent energy management systems, and how they work together to provide a stable and reliable power supply for your PV projects.
