KSUNsolar is a manufacturer and supplier of solar energy products with high quality.


Energy-Storage System

KSUN Powerwall (Battery Energy Storage System)

Compact Size / High Efficiency / Easy Installation / High Energy Density / Excellent Safety

KSUN Powerwall is mainly combined with inverter, photovoltaic (PV) and related accessories to build residential energy storage system. The system is used to store the direct current (DC) generated by photovoltaic (PV) in the connected battery, and convert the direct current (DC) generated by the connected battery into alternating current (AC) and provide it to the home grid.


(Note: The actual Residential ESS may also include electrical equipment such as distribution boxes and metering meters)

KSUN Powerwall is a lithium-ion battery pack that can store electrical energy and outputs DC current. Powerwall only maintains electrical connection with the inverter. The electrical energy generated by the PV is converted by the inverter DC to DC and stored in the connected Powerwall. When Powerwall is needed, Powerwall’s electrical energy is converted by the inverter DC to AC and transmitted to the home grid to provide power for household appliances.


KSUN Powerwall (Battery Energy Storage System)

KSUN Powerwall Energy Storage Battery is a tesla powerwall solar battery replacement. It is rechargeable home battery system that is installed with solar panel. When the sun rises, solar begins powering the home. When additional power is required for the home, the home can pull it from the utility grid.


KSUN Powerwall Energy Storage Battery is charged by solar during the day, when solar panels are producing more electricity than the home is consuming. KSUN Powerwall Energy Storage Battery then stores that energy until the home needs it, such as when solar is no longer producing at night, or when the utility grid is offline during a power outage.


When the sun comes out the next day, solar recharges KSUN Powerwall Energy Storage Battery so you have a cycle of clean, renewable energy.

KSUN Powerwall (Battery Energy Storage System)

When you go solar energy, a solar battery storage system is the only way to keep your home powered through outages and helps reduce your reliance on the grid.

Ksun Powerwall Energy Home Battery Storage is a compact home battery that lowers your dependence on the grid by storing the energy produced by your solar system and make them available for use when the sun isn’t shining. Ksun Powerwall Energy Storage Battery is designed to automatically notice outages and recharge with sunlight to power your entire home and appliances for days.

How Does It Work?

The Ksun Powerwall Energy Storage Battery connects to a solar panel and an inverter that converts the current from the solar panel into electricity used by your home. Any excess energy from this process needs to be stored somewhere for later use – the Ksun Powerwall Energy Storage Battery is the storage receptacle for this excess energy.

Get Clean, Uninterrupted Backup Power for Your Entire Home with KSUN Powerwall


High Voltage Ground Lithium Battery Storage System

Powerwall Battery is a high-tech product developed to meet the requirements of the new home backup power supply. It has the characteristics of integration, miniaturization, light weight, intelligence, standardization, and environmental protection. KSPW48-100BL has a lithium (LiFePO4) battery storage capacity of 5kWh, allowing you to stay away from the grid as you like.

What is a Powerwall Battery?

Powerwall battery is an integrated battery system that can store your solar energy for backup protection when the grid fails. In short, the Powerwall battery is a home energy storage device that can store energy directly from the grid, or it can store electricity generated by renewable energy sources such as wind and solar energy. Households can install a single battery, or couple them together for greater storage capacity.

Powerwall battery uses lithium iron phosphate battery (LiFePO4 or LFP) technology, which has the characteristics of long service life, no maintenance, extremely safe, lightweight, high discharge, and charging efficiency, LiFePO4 battery is not the cheapest battery on the market, but due to the use of Long life and zero maintenance, so over time, it is the best investment you can make.

Residential Applications of Home Power Storage

SOLAR SELF-CONSUMPTION — For homeowners, solar self-consumption is the most important application of home power storage systems. Home power storage allows homeowners to store surplus energy produced by solar panels during the day and use it at night. This can be a great option for some customers on utilities that don’t offer net metering.

OFF GRID — Batteries are necessary for a solar-powered off-grid home. Modern battery home power storage systems far exceed the capabilities of the marine lead-acid batteries used by pioneering solar DIYers in decades past. Modern systems are easier to install, easier to configure, more scalable, much cheaper per kWh of home power storage, and far safer.

EMERGENCY BACKUP — Battery home power storage provides the peace of mind that comes with keeping the power on during an outage. Home power storage works with or without solar and is a safe and seamless alternative to small generators.

Self-Power Your Home with Battery Storage

Solar energy and battery storage go together like peanut butter and jelly! Reduce your reliance on the utility grid and enjoy seamless backup power charged by your solar energy system.

Powered by Solar

Your battery storage system is charged by your solar panels. Excess energy the panels produce is directed into your battery, so that it is fully charged and ready to go. When the system is charged, additional excess energy flows into the grid as usual.

Back-Up Energy

The battery storage powers your home when your solar panels aren’t able to produce energy, such as during a power outage. You can also enjoy the benefits of your battery at night when the sun is down!


Monitor Remotely

With most of our battery storage systems, you can download a mobile app and track your available backup energy right from your phone! See how much power your battery system is storing, and watch it charge throughout the day.

Energy Independence

Produce and store your own energy with a battery storage system! Solar battery storage brings you and your home one step closer to independence from the power grid.



Residential Ground Battery Energy-Storage System

Residential Battery Energy Storage System or BESS that has the potential to store energy in the batteries at the residential level through solar energy is called residential solar battery storage.  For this purpose, most people acquire lithium-ion batteries. Firstly, it fulfills the requirements of the residential system.


Battery Energy Storage Systems are rechargeable batteries that can store energy from different sources and discharge it when needed. BESS consist of one or more batteries and can be used to balance the electric grid, provide backup power and improve grid stability.


A solar battery storage system is designed specifically for solar power systems. It’s an energy storage solution that works with your solar system to store electricity that the panels generate during the day. The purpose of it is to use the power that’s stored once the sun goes down.

There are two types of solar battery storage options, which are hybrid and off-grid. The former uses a battery in the system that’s supported by both solar powers as well as being grid-tied. This means that your solar panels generate energy during the day and the surplus electricity is sent to the batteries stored for later use.


Solar battery energy storage systems have the ability to provide backup power to your business. Much like diesel standby generators, they store power to release during periods of power outage and capture any excess energy generation, which gives you peace of mind that your site will continue to operate in the event of power supply disruption.

In certain cases, your business may be able to have access to an Uninterrupted Power Supply (UPS). This eliminates the short period of downtime that occurs when switching over to your backup solar PV battery storage in a conventional system – see the section on UPS below for more information.

Battery Storage Power System is a type of energy storage that uses a group of batteries to store electrical energy. Battery storage is the fastest responding dispatchable source of power on electric grids, and it is used to stabilize those grids, as battery storage can transition from standby to full power within milliseconds to deal with grid failures.

Reliable, Safe and Affordable Energy


Our residential solar systems are safe and reliable as they integrate the latest solar battery technology with advance safety features


Guaranteed Performance


Our SolarKit consists of tier-one components that guarantee maximum performance for a longer period.  It comes with a 5-year warranty.

Uniterrupted Power Supply
24 hours a day 

With our solar residential systems, you are guaranteed access to power at any given time anywhere with no power outages.


KSUN Powerwall Advantages

KSUN Powerwall Battery Energy Storage System


  Flexible and fast transportation and implementation;

•  Lower maintenance in comparison to other batterychemistries.

•  Optimized dimensions ensuring high energy density and reduced weight;

  High reliability and safety provided by the chemistry used;

  Design of the battery management system (BMS) in three levels (module, rack and            bank), ensuring greater control andmonitoring of the system;

Power through Uncertainty

Keep the lights on, protect your family and secure your home office during blackouts. Our 100-year-old utility grid is expensive, dirty, and susceptible to extreme weather. As blackouts become the new normal, Ksun powerwall backs you up with reliable, clean energy for your home and family.

Power through Unreliable Energy Grids

The benefits of solar-powered batteries go beyond your home. Ksun powerwall’s solar battery service enables you to consume more of the clean energy your solar panels produce, so you rely less on dirty and damaging fossil fuels while you decrease your carbon footprint. A cleaner and safer future starts today, and you can help create it by building a smarter energy grid.

Take Control of Your Energy

KSUN powerwall can buffer you from increasing energy costs so that you have power when you need it most. While we can’t predict how much or how often utility electric rates will rise or when exactly the power will go out, we can always count on the sun rising each day. Take charge of your electric bill and get control of your energy needs now and in the future.

KSUN Powerwall (Battery Energy Storage System)

Get one step closer to grid independence with a KSUN solar battery storage system. Store surplus energy generated by your panels and use it whenever you need it. Easily power your home, save money, and be better prepared for power outages all while being more environmentally friendly!

Self-Powered Home

Add a KSUNsolar battery to your solar energy storage system to maximize savings and get the most out of the energy your panels produce. Store excess energy to power your home at any time including during power outages.

One APP for Your Energy

Manage your home’s energy right on your phone! Monitor your energy consumption, generation, charge/discharge levels, net metering, backup power and more. and battery usage all on a single app! KSUNsolar’s APP offers bill estimates and forecasts to help you plan ahead.


KSUNsolar offers a 10-year warranty on their solar battery storage systems. The warranty against defects and workmanship and covers battery cells, inverters, and all internal components including connectors, switchers, breakers, cables, and wiring.

ksun wall mount battery storage system
How Home Battery Energy Storage Systems Work
1 1 1

Any surplus DC electricity charges the KSUNbox.

The inverter converts the DC electricity to AC (Alternating Current) for use in the home.

The inverter can also convert AC to DC to charge the KSUNbox using cheap off-peak mains power.

KSUN Powerwall

KSUN Powerwall Battery Storage System



                      · High Quality LiFePO4 Battery
     · Nominal Voltage: 51.20V
     · Nominal Capacity: 100Ah
     · Efficiency: 96%
     · Cycle Life: 6000 times

                    · Charging Voltage: 58.40V

                    · Charging Current: 20A

                    · Built-in BMS
     · Suppotrt up to 15 modules parallel



                      · High Quality LiFePO4 Battery
     · Nominal Voltage: 51.20V
     · Nominal Capacity: 200Ah
     · Efficiency: 96%
     · Cycle Life: 6000 times

                    · Charging Voltage: 58.40V

                    · Charging Current: 40A

                    · Built-in BMS
     · Suppotrt up to 15 modules parallel


                      · High Quality LiFePO4 Battery
     · Nominal Voltage: 51.20V
     · Nominal Capacity: 100Ah
     · Efficiency: 96%
     · Cycle Life: 6000 times

                    · Charging Voltage: 58.40V

                    · Charging Current: 20A

                    · Built-in BMS
     · Suppotrt up to 15 modules parallel


Frequently Asked Question


How much storage does my home need?

Just like solar-only systems, the size of your rechargeable solar battery system is determined by your unique energy needs and habits. Factors, such as the amount of electricity you use at home and the devices and appliances you want to back up, will play a key role as you select the right battery storage solution for you.

Will my KSUN powerwall battery allow me to go off grid?

Our rechargeable solar battery systems are designed to keep you on-grid during normal service times while still providing reliable backup when the sun isn’t shining or during the event of an outage. This is the most reliable and economical way to use your KSUN powerwall system, and the one most strongly recommended by KSUN’s service experts.

What is KSUN powerwall?

KSUN powerwall is a holistic solar battery storage service that offers you clean, safe, reliable, back-up power to have better control over your home energy use and cost.

How does KSUN powerwall work?

KSUN powerwall allows you to store the electricity your solar energy system produces during the day and use it when you need it most—such as in the evening during time of use (TOU) peak pricing or when the electric grid fails due to an extreme weather event or physical damage to the equipment.

What are the benefits of KSUN powerwall?

KSUN powerwall solar battery storage systems can help you save money on utility bills, protect your home from power outages, and reduce your carbon footprint by supporting the production of clean, renewable energy.

Do I need to do any setup or maintenance to KSUN powerwall?

Most residential batteries are installed and configured with baseline settings by your solar installer. Solar batteries last anywhere between 10 and 15 years, and manufacturers typically offer a 10-year warranty.

Get Started with KSUNSOLAR

We'll help you figure out your solar power needs !

If you have any inquiry of our products, please do not hesitate to send a message here,  we will reply you in 24 hours !  Your detailed requirements will get more exact answer.


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