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Enphase Solar Battery

Exploring the Benefits of Enphase Solar IQ Batteries

Key Details

  • Enphase offers a range of solar batteries, including IQ Batteries.
  • It's distributed architecture design allows for easy and quick expansion of the energy system.
  • As of 2023, Enphase provides two battery sizes—IQ Battery 3 (3.36 kWh) and IQ Battery 10 (10.8 kWh).
  • Cost of installation ranges from $6,000 to $20,000 depending on size chosen and location.
  • IQ batteries qualify for the federal solar tax credit

Enphase IQ Battery

The Enphase IQ Battery is a high-performance lithium-ion battery designed for energy storage. It is part of Enphase Energy's comprehensive energy management system, which includes solar panels, microinverters, and intelligent software.

Enphase is one of the leading names in the solar industry. Known for its microinverters, the solar company also expanded its product lineup to include solar batteries.

Enphase’s IQ batteries are constructed on a distributed architecture platform that allows for maximum reliability. The distributed architecture design also allows for easy and quick expansion of the solar energy system as your energy needs continue to grow.

Additionally, there are no solar or battery sizing restrictions when the batteries are paired with solar using Enphase IQ8 Series Microinverters.

The Enphase IQ Battery provides an affordable option for homeowners with a budget

The Enphase IQ works with Enphase microinverters from the M and IQ series. This means that unless the inverter system is an Enphase system, you will not be able to connect an Enphase battery to it.

The IQ batteries from Enphase are also AC-coupled, making it simple to connect them to existing solar panel installations. The batteries are dependable and safe to operate thanks to each solar backup battery having several bidirectional IQ Microinverters to convert energy from DC to AC and back again. Therefore, even if one battery dies, electricity will continue to flow and the power stays on. Enphase’s 1Q batteries also come in two options, which are the IQ Battery 3 and IQ Battery 10.

What is the Cost of the Enphase IQ Battery?

As of 2023, a full system installation of the Enphase IQ Battery 3 costs between $6,000 and $8,000 and the IQ Battery 10 to cost between $18,000 and $20,000. However, solar battery installations are more complicated than a list price for a component. Costs can also vary greatly depending on your electrical setup, among other factors.

In some circumstances, you might need to upgrade your electrical panel, which could raise the price by about $1,000. You may also want to maximize where and how you get your energy and want to connect to a generator. To connect your solar battery, in this situation, you will need to buy Enphase's IQ System Controller. This adds an extra cost of $1,707.

Keep in mind that battery costs are only one factor to consider when installing the IQ Battery as part of a solar plus storage system. For instance, a 5 kW solar energy system can cost anywhere between $9,000 and $15,000. Although this depends on where you live and the technology you choose to employ.

Depending on your location, you may be eligible for financial incentives that help lower the cost of installing home energy storage. For example, the Self-Generation Incentive Program (SGIP) in California provides a cash refund that covers the majority of your home battery expenses. Several jurisdictions already offer cash rebates, and other states like Massachusetts are investigating battery storage performance incentives.

Comparison of Enphase IQ Battery with the Tesla Powerwall and Generac PWRCell

Enphase IQ Battery 10 Tesla Powerwalll2 Generac PWRCell
Cost $6,000-$12,000 $10,000-$12,000 $10,000-$18,000
Capacity (Size) 10 kWh 13.5 kWh 9-18 kWh
Maximum continuous output 3.84 kW 5 kW 4.5-9 kW
Energy Management App Yes Yes Yes
Load prioritization Yes No Yes
Warranty 10 years 10 years 10 years

How many kWh is an Enphase IQ Battery?

Enphase provides two IQ battery sizes for energy storage, ranging from 3.36kWh to 10.8 kWh.

Battery Type Energy Capacity
Enphase IQ Battery 3 3.36 kWh
Enphase IQ Battery 10 10.8 kWh

Due to the batteries being modular, they can be combined with other units to expand energy storage in your home. Enphase permits adding a maximum of four IQ 10 battery units per installation.

Does the Enphase Solar Cell Battery Qualify for the Federal Tax Credit?

Yes, Enphase solar cell battery qualifies for the federal solar tax credit. However, to gain access to the solar tax credit, you must.

  • Own a solar battery.
  • Have taxable income
  • Own the property where your system is installed

The solar battery tax credit can be claimed on federal taxes without having to apply for it. Ensure to save any receipts related to your installation to receive credit. Once you have accumulated all your receipts, get and complete IRS Form 5695. If you are a commercial taxpayer use the IRS Form 3468. Lastly, add your credit information to the standard IRS Form 1040.

In 2022, the Inflation Reduction Act, formerly the Investment Tax Benefit, increased the credit to 30%. However, the tax credit will drop to 26% in 2033 and 22% in 2034. After that, the domestic solar tax credit under the Inflation Reduction Act would be abolished.

Why Choose the Enphase Battery?

Enphase is one of the leading solar companies in the US. Some of the benefits of choosing an Enphase IQ Battery include:

Outdoor-Friendly and Dependable

Enphase spent years conducting research and development to design a failproof storage energy system. This diligence in research and development has made their storage solutions more dependable than before. Enphase IQ Batteries' cutting-edge semiconductor and passive cooling technology ensures they have no single point of failure and can tolerate extreme heat and humidity. The Enphase batteries have been approved for outdoor use and are NEMA R3-rated.


Enphase batteries are safer for home usage since they are produced using the safest battery chemistry currently on the market, lithium iron phosphate (LFP). This cobalt-free technology is the first microinverter storage system to receive UL's rigorous 9540A listing and does not use high-voltage power. Enphase utilizes LFP battery chemistry, making it one of the safest solutions. This safe battery chemistry is crucial because it prevents thermal runaway, which increases the risk of a fire.

Specifically Engineered to Work with Your Solar System

Enphase Battery Storage is cleverly made to intuitively manage your solar system. When turning on energy-draining appliances like refrigerators, sump pumps, or HVAC systems, the Enphase Battery can deliver surge current to satisfy short-term power needs, which can be crucial. A clever solution called Enphase Battery Storage will intelligently get you ready for grid interruptions.


It's possible that you don't know the right size for your energy use if you're thinking about installing a solar battery. A scalable solution is the Enphase Battery. The size of your system won't constrain you if you use an Enphase battery. You can choose to start small, aim high, or develop gradually. You can take charge of your energy with Enphase Energy Battery Storage.

Lower Upfront Costs

The Enphase IQ Battery serves as an affordable option for homeowners with a budget. For example, the Tesla Powerwall starts at around $10,000 while the Enphase IQ Batteries prices start at around $6,000. Furthermore, due to its simple installation process, Enphase IQ Battery is not expensive to install.

AC generator support with no power interruptions

The Enphase IQ Battery works with the majority of popular AC home backup generators. The solar battery also operates without a generator automatic transfer switch. It also gets rid of the power hiccups that are typically present when switching to generator power.

Enphase Solar Battery

How Does the Enphase Battery Work?

The Enphase IQ battery is made to function with grid-connected solar panel systems. This ensures homes will always have access to dependable backup power. Enphase IQ Battery works like any other battery in a hybrid solar system. The following timeline shows how Enphase batteries work throughout the day in a Transfer to-time-of-use agreement:

  • Morning (7 am - 10 am): Energy usage usually spikes in the morning because that’s the time people are up getting ready for work or school. Many heavy appliances such as irons, microwaves, kettles, and so on will be used. The battery will make up for the shortfall from all of this energy use. However, if the battery is dead, power will be imported from the electrical grid.
  • Midday (12 pm - 2 pm): Sun exposure is at its peak during midday and energy needs will be low. This is because most people would be at work or just away from their homes. During this time, the batteries have enough energy to fully charge and recover from the morning electricity usage.
  • Afternoon (2 pm - 5 pm): Energy needs are still quite low and solar power output can match power demand. The solar panels are still subject to enough sun exposure to power up the battery. If the battery is already full, the surplus power is sent back to the grid.
  • Evening (6 pm - 10 pm): In the evening, energy use spikes as people start to return home. Evenings account for 50% of electricity usage in most households in the US. This is when the power stored in the battery is most useful since you would not need to buy electricity at peak demand rates.
  • Night (11 pm to 5 am): During this time, energy from the battery powers the home. If the energy in the battery is running low, energy can be drawn from the electrical grid.

Furthermore, the IQ batteries from Enphase are AC-coupled. An inverter is manufactured into AC-coupled batteries, making it simple to connect them to current solar panel installations. The Enphase IQ batteries are different from other AC-coupled batteries available on the market (like the Tesla Powerwall) because they employ microinverter technology.

What are the Components of an Enphase Battery Design

Enphase’s IQ Battery would not be as good as it is without the components that make it work. The following are the components of an Enphase Battery Design:

  • Fully integrated AC battery system: In an AC-coupled appliance, current rapidly flows both ways. This increases and stabilizes your power output. It also allows your battery to be able to be charged from both solar and the grid.
  • 4 embedded IQ8X-BAT Microinverters: A micro-inverter is a component that connects to a single solar panel and transforms the DC (direct current) the panel generates into AC (alternating current). This may then be used to power appliances within the home or fed into the grid to earn energy credits.
  • Stable lithium iron phosphate (LFP) chemistry: High energy density, long life, and effective operation at high temperatures are all characteristics of LFP batteries. They are frequently employed in applications including grid energy storage systems, portable power tools, and electric vehicles where extended life and reliable performance in challenging environments are crucial.

Can an Enphase Solar Battery Backup a Home?

Generally, solar batteries have enough energy to provide electricity to your home. The Enphase IQ battery is a good fit for homeowners looking to power their basic energy needs. The IQ Battery 3 has an energy capacity of 3.5 kWh and a power output of 1.92 kVA which are enough to power a home for up to 10 hours. On the other hand, the IQ Battery 10 has an energy capacity of 10.08 kWh and a steady energy output of 3.84 kVA enough to power a home for almost 24 hours.

Can you use Enphase IQ Battery without Solar?

You do not necessarily need solar panels to get your Enphase IQ Battery to work. For instance, the batteries have been designed to work with gas-powered generators. This is ideal for homeowners who do not want to solely rely on sunny days to generate electricity. It's also for customers who want the added security of a gas-powered generator.

However, connecting solar energy systems with gas generators can sometimes prove difficult. Nonetheless, the Enphase storage system enables your solar panels, battery, and generator to run simultaneously. All the while making it simple to attach a gas-powered generator to your home.

Additionally, you can use the Enphase App to keep an eye on the generator and decide how and when you want it to run. Most of the top generator brands, including Kohler, Generac, and Cummins, are compatible with Enphase batteries.

In the market, most solar batteries are not able to seamlessly connect to a generator. Therefore, Enphase IQ Battery may be the best choice if you want to have the most dependable and steady power supply.

Are Enphase Batteries Good for Solar?

Yes, the Enphase IQ Battery is good for solar. Enphase’s advanced solar battery technology solar gives their owners to opportunity to get the best out of solar. For instance:

  • The IQ Battery 3 and IQ Battery 10 have the necessary energy capacity to store large amounts of electricity. This saved-up electricity can then be used to save on energy costs.
  • The battery’s microinverters help it to maintain a steady output allowing you to have a smooth and uninterrupted power supply while on solar.
  • There are no limitations on the solar and battery ratio sizing when IQ8 microinverters are used on solar panels.
  • The AC-coupled system from Enphase enables you to start small, scale up, or increase over time.

What's the Lifespan of an Enphase IQ Battery

Enphase IQ Batteries are expected to last for 10 years or 3,600 cycles with 80% of the initial capacity remaining. One "cycle" consists of the discharge from 100% SOC down to the BCM's shut-off point, which is likely still above 0% SOC. Therefore, you will use up the intended battery life more quickly if the battery is completely drawn down each time it discharges.

Depending on how often it's charged, a solar battery may still work after 10 years but with a reduced capacity.

Enphase Solar Battery Installation

How Much Space Does the Enphase Battery Need?

To know how much space a solar battery will take, you need to look at the dimensions and know how many batteries you are looking to buy.

For example, the dimensions for the Enphase IQ Battery 3 are 14.45” x 26.14” x 12.56”. Essentially, if you wish to install at least three of the batteries, you would need to have enough space to cover a little over 43.35” x 78.42” x 37.68”.

As for the IQ Battery 10, you would need enough space to cover 42.13” x 26.14” x 12.56”, if you wanted to install just one unit.

Is One Enphase IQ Battery Enough?

Whether one Enphase IQ Battery is enough for you depends majorly on your energy needs. It also depends on factors such as the battery size and how your electricity rate works.

For example, if you decide to go for IQ Battery 3 with a 3.36 kWh energy capacity, you will need to get at least 2-3 to match the capacity of IQ Battery 10.

Additionally, if you are on a flat rate structure you will probably need energy capacity that would make you rely on the national electric grid as little as possible.

Furthermore, if you are on a variable rate plan, it is essential you have a battery with enough energy capacity to withstand the high-cost tomes of the day. High-cost times are usually at night and early in the morning before midday. You need enough energy storage to keep your home self-sufficient during times when electricity prices are at their highest if you want to benefit financially from solar batteries.

You will need about 3-4 Enphase IQ Batteries to largely avoid using grid electricity during peak hours and when your solar panels are not producing power.

How Do I Monitor My Enphase Battery After Installation?

Enphase provides the Enphase app as a strong and intelligent partner for your installed Enphase Energy System. This app helps customers make, use, save, and sell their electricity from their smartphones. Customers can assess their system’s status with the app.

ENphase app.JPG
Customers can use the app to track grid exports and imports and manage energy-consuming devices.

They can also see how much electricity it is generating. The app also produces reports on the amount of energy produced each day, week, month, or year. containing clear, readable graphs and infographics. It also monitors how much energy is stored in your battery. The Enphase App also monitors your battery’s charging time.

Alternatively, customers can use the MyEnglighten Desktop app that displays how your Enphase IQ Battery is working after you have installed it. The following is a guide for observing your battery’s status on the MyEnlighten Desktop app:

  • The system status indicator is located at the top of the MyEnlighten overview screen and will let you know if everything is operating normally or if there is a problem. Additionally, this area displays the charge level of your Enphase IQ Battery.

  • There is also a daily energy graph on the MyEnlighten app. It is located at the base of the overview screen. This graph offers thorough details about your system's behavior during the day, divided into 15-minute segments. You can understand the energy flow into and out of your home during the day using the graphic above the graph. The graphic also shows how much energy was stored in and discharged from your batteries.

  • There is a central circle in the graph that displays the amount of energy your house has used during those 15 minutes. This circle has been color-coded to show the type of energy used during that period. Your solar energy system's energy is shown in blue, your utility company's energy is shown in grey, and your AC batteries' energy is shown in green.

  • If your system is configured with a Time of Use tariff, your batteries may charge from the grid overnight in anticipation of the morning's peak electricity prices. You will notice an additional area on the graph that represents the batteries charging overnight. It also shows thws the batteries discharging when the morning peak price period begins.