Solar battery storage systems not only provide backup power but also increase the value of your property. Coming in different capacities, there’s a system for every energy demand. But how much do they cost? Let’s find out.
What Is the Cost of Solar Batteries in 2024?
Solar battery prices range from $6,000 to $13,000 depending on the type, brand, and capacity. Larger batteries ideal for whole-house backup can cost anywhere from $25,000. So, what influences the final price? Let’s find out.
Energy Capacity (kWh)
The amount of power the battery can store is one of the chief factors that influence its price. Larger solar batteries are more expensive than smaller units. Fortunately, they will power more appliances and keep lights on during prolonged power outages. Furthermore, larger units have a longer lifespan from 10 to 20 years. So, if you want to use your solar system for extended periods, consider buying a battery with a large capacity.
Power Output (kW)
Power output is the amount of power (kW) a battery can deliver. A unit with a higher power output will power more appliances for an extended period. When checking the power output, consider the starting and running power.
Starting power is the amount of energy that is required to power appliances such as refrigerators for at least two seconds. The running power is the amount of energy required to power an appliance.
When buying a solar battery, ensure it has adequate starting and running power to support all your appliances.
DC vs. AC
Solar batteries fall into two categories: DC and AC. alternating current (AC) batteries are more expensive but are compatible with different solar systems. They are also easy to install or include in an existing solar panel system. You can use the grid or solar panels to charge them. While easy to install, they are less efficient.
Direct current (DC) batteries are cheaper but more efficient than AC units. However, they have a complex installation process and tend to fetch more in installation cost. That said, they require fewer installation materials
Battery Chemistry
Besides the type of the battery, its chemistry also affects its pricing. There are four main categories: lead-acid, flow, lithium-ion, and nickel-based batteries.
Lead-acid batteries are the most popular thanks to their longevity, durability, and low prices. You can get them in two types: flooded lead-acid and sealed lead-acid batteries. The maximum lifespan of a lead-acid battery is five years. That said, their versatility makes them compatible with any solar energy system.
Flow batteries are a new entrant in the market. Coming with two electrolyte tanks, they can store more energy and have a long life cycle. Most batteries have a minimum lifespan of 20 years. As you’d expect, they fetch a higher price.
Lithium-ion batteries are also popular with most homeowners. Initially intended for EV vehicles, they have become a favorite for most commercial and residential applications. They are the lightest, most compact, and cost-effective batteries.
Lithium Iron Phosphate Cells (LiFePO4) batteries are the most ideal for solar power systems. Offering high energy density, longer cycle life, and fast charging, they improve solar systems’ efficiency.
And the BLUETTI EP900 + B500 Home Battery Backup is a perfect example of a LiFePO4 battery. The 19,840Wh high-capacity battery is portable, compact in design, and easy to install. Besides, it is compatible with existing solar systems meaning you don’t have to install new wiring.
Nickel-based batteries are not as popular as lead-acid and lithium-ion batteries. That said, they are a perfect choice for areas that experience extreme temperatures. With a lifespan of over 20 years, they can power your house for decades.
Are There Incentives for Installing a Solar Battery Storage System？
Yes, different states provide varying incentives in addition to the federal tax credit (formerly the Solar Investment Tax Credit). It states that solar batteries are eligible for 30% Residential Clean Energy Credit. The 30% tax is eligible until 2032. It will drop to 26% then 22% in 2033 and 2034 respectively.
The California Self-Generation Incentive Program (SGIP) provides homeowners with rebates when they install solar batteries. Started in 2018, it offers rebates of between $150 and $1,000 per kWh.
Maryland energy storage tax credit ran from 2021 to 2022, encouraging Maryland residents to install solar batteries. The program awarded up to 30% of the total installation cost. Another notable program is the Massachusetts SMART program.
It offers a tax credit of up to $1,000, paying homeowners for every kilowatt-hour of energy their solar system generates. Homeowners get additional incentives if they install solar batteries as part of their system.
You can opt for the BLUETTI EP500 Solar Power Station for ample energy conservation. It is compatible with many solar systems and has a 5100Wh capacity, meaning it can power many of your appliances. Supporting 120V and 240V electric products, the batteries are ideal for long power outages.
What Impacts the Cost of Solar Battery Storage System Installation?
Number of Batteries
The more batteries installed, the higher the installation cost. Many batteries might demand a special storage space or wiring, which will arguably increase the cost of installation. The number of batteries installed will depend on the power you use, the storage capacity of the battery, and how many appliances you want to power. An average American home can do with two solar batteries.
Battery Features and Characteristics
Just like any other electronic device, the more features and characteristics, the higher the cost. BLUETTI batteries come with many features hence the high cost.
For example the BLUETTI AC500 + B300S | Home Battery Backup comes with a 5,000W rated power and 10,000W surge power, meaning it can power large appliances such as refrigerators.
Some of its unique features include six recharging options, portable, AC charging, and expandability. With it, you can connect 120V and 240V appliances with ease. With an LED display, you can monitor its performance easily.
Local Market
Different locations charge varying labor costs. If you install the battery and the solar panels simultaneously, the labor costs might be lower than installing separately. Separate installations might require new permits, which might increase the installation cost.
Furthermore, solar installation companies charge differently depending on your location. On average, an electrician will charge $50 to $70 per hour and running new electrical wiring will cost $7 to $10 per linear foot. You should research your local market for the final cost.
Why Install a Solar Battery Storage System?
Installing a solar battery storage system comes with many benefits. Whether you are installing a rooftop or portable system, there’ll be advantages associated with the system. As you’d expect, they store excess energy, which you can use at night or when the sun is less available.
Solar panels can generate more energy than you need. In such a scenario, the batteries will store excess electricity, reducing your reliance on the power grid. In fact, you can channel the excess power to the grid and get paid.
And if you experience regular prolonged power outages or want to go completely off the grid, then installing a solar battery storage system is your best bet. Installing such a system is in fact beneficial to residents of California. Their new net metering policy makes solar batteries a worthwhile investment.
While solar batteries are not required in a solar system, they come with many benefits. They include:
- Lower electric bills: While not cheap to install, solar batteries are an ideal long-term investment. With a solar battery you can take advantage of net metering, peak shaving, and demand charges to lower your electric bills.
- Energy independence: Another advantage of installing solar batteries is reduced reliance on the power grid. While solar batteries won’t run everything in your home, they can keep critical devices running during prolonged outages.
- Low maintenance: There's no doubt that conventional backup generators are expensive to maintain. Luckily, this is different with solar batteries. Once installed, they don’t require regular maintenance as they don’t have moving parts.
- No noise pollution: Conventional generators are notoriously noisy. Solar batteries on the other hand are extremely silent. You can even install them in your living room with minimal interruption of your daily activities or sleep.
- Reduced carbon footprint: In addition to being silent, solar batteries are eco-friendly. Unlike conventional generators, they do not emit harmful gasses that pollute the environment. By using solar batteries, you’ll be contributing to a more sustainable planet.
- Tax credits and rebates: The federal and state governments offer tax credits and rebates to homeowners who install solar batteries. The current 30% federal tax credit runs up to 2032. Michigan and Carlifonia residents can also benefit from additional rebates.
- Higher home value: Installing a solar system will significantly bolster the value of your home. Property buyers appreciate the value of clean energy and hence are willing to pay more.
Related articles: Emergency Preparedness: 5 New Home Battery Backup Solutions in 2024
Solar Battery for Home Energy Storage Buying Guide
Are Solar Batteries Worth It?
Yes, you should install a solar battery storage system to use as a backup solution. They offer energy independence by storing excess solar energy for use during periods of low sunlight or power outages. This can result in substantial savings on electricity bills, especially during peak rate hours. Additionally, solar batteries contribute to environmental sustainability by reducing reliance on non-renewable energy sources. The decision's worthiness depends on factors such as local energy costs, government incentives, and the reliability of the grid. While the initial investment can be significant, the long-term benefits in terms of cost savings, energy resilience, and reduced environmental impact often make solar batteries a valuable addition to a home's energy system. You can get premium solar batteries from BLUETTI.
FAQs
How Long Do Solar Batteries Last?
On average, a solar battery can last between 3 and 20 years, depending on the type. Lead-acid batteries last for 3 to 5 years while lithium-ion units last for up to 15 years. Flow batteries can last over 20 years. Lithium Iron Phosphate Cells (LiFePO4) can last between 5 and 10 years.
How Long Can a Solar Battery Power a House?
Well, a typical 13kWh battery can power your house between 4 and 12 hours. This however depends on the appliances running concurrently.
