Solar Energy Storage System (ESS) Manufacturer & Factory

Our Featured Storage Battery

Tesla Powerwall Alternnative–KH wall-mounted battery

All-in-one Energy Storage System(ESS)

Power Storage Brick with integrated inverter built-in

48V Lithium-ion Battery pack System

48V Lithium-ion Battery pack System

Custom Battery Energy Storage Solutions Services

As a battery energy storage system manufacturer with 15 years’ experience,  We can provide customers with standard battery products and one-stop battery energy storage customization services from the battery, and BMS, to structural design, including OEM and ODM.

Custom Appearance

Customize the battery case, affix your logo to promote the brand, and take care to protect each item.

Custom Specification

Customize the battery case, affix your logo to promote the brand, and take care to protect each item.

Custom Performance

Customize the additional functions of the battery to make your product closer and more convenient to life.

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Compatible Inventer Brands

After years of debugging, KH  battery energy storage system which have professional engineer team, can perfectly fit with the main-stream inverter brands on the market.

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Manafacturer Technology


Our products comply with ISO/CE/UL1973/UN38.3/MSDS/ROHS/IEC62619/CEC standards.

Battery Warranty Guarantees Your Benefit

If there is any fault because of battery problem, you can contact us, send us video and picture, our sales engineer will deal with it. When the failure rate is over 3‰, we will send you the new battery for a replacement for free, and we’re responsible for all shipping fees of exchange services.


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ODM/OEM Service

Quickly create custom lithium batteries designed to your needs,support OEM/ODM.

Extream Safety

LiFePo4 lithium is unique chemistry won’t catch fire, overheat, or explode.

15 years warranty

We use top quality battery cells and offer a 15-year warranty on the battery energy storage system.

After Sales and Warranty

Good after-sale service, long product warranty and continual technique support.

How Do We Guarantee To Offer you High-quality Products?

We have implemented a professional quality inspection process for a long time, strictly control the quality of each raw material, follow up the process of each production step, and be responsible for each battery.


    A deep cooperation with top brand battery cell manufacturers CATL, EVE, REPT,BYD. 


Battery cells QC inspection


Use high consistency battery cells customize the battery as your needs


Energy storage system factory overview


Match with mainstream brands inverter,like SMA, Goodwe,Deye,Growatt etc.


48v lifepo4 lithium battery pack


Battery Pack discharging test


Complete certifications,like UL1973,UL9540,CE,MSDS,UN38.3 IEC etc


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FAQs About Energy Storage Systems

We will do our best to answer your most frequently asked questions.

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The Definitive Guide to Solar Energy Storage Systems

Preface Introduction

Photovoltaic (PV) power generation systems are usually categorized into grid-connected storage, off-grid storage, on-grid and off-grid storage systems, PV on-grid and off-grid systems, and microgrid systems.

A common solar energy storage system is the standby power system (UPS), which is widely used in areas with frequent power outages and unstable power grids, or loads with high requirements for guaranteed power supply from the grid. Its core component is an integrated charging and inverting machine with dual functions of charging and inverting.

What are the common solar energy storage systems?

Grid-connected energy storage

Grid-connected solar photovoltaic (PV) power generation system – Grid-connected solar photovoltaic (PV) power generation system consists of a PV battery array, connector, and grid-connected inverter, which does not go through the battery storage, and inputs the power directly into the public power grid through the grid-connected inverter. Grid-connected solar PV power generation systems compared to off-grid solar PV power generation systems eliminate the battery storage and release process, reduce the energy consumption therein, save floor space, and also reduce the configuration cost.

Off-grid energy storage

Off-grid photovoltaic energy storage system is the photovoltaic power generation, energy storage system and inverter, and other components of the photovoltaic energy storage off-grid system, which can be directly utilized photovoltaic modules to the battery charging to meet the demand of the electrical load. Off-grid PV energy storage plants can also be installed in places where there are frequent power outages or unstable power supply from the grid. The battery system can be charged not only by the PV power system but also by conventional power when the conventional grid is energized to guarantee the power supply. Off-grid photovoltaic power generation system is mainly suitable for some special and away from the grid some of power loads, in communications, border posts, islands, or field operations the occasions and people still have a great deal of market demand space, especially in Africa and other underdeveloped countries and regions there is still a very large space for development and the market.

Grid-connected and off-grid energy storage system

It consists of photovoltaic modules, solar on-grid and off-grid integrated machines, storage batteries, load, and so on. Widely used in the scenarios of frequent power outages or PV self-generated self-consumption can not be surplus electricity on the Internet, self-consumption of electricity is more expensive than the price of electricity on the Internet, the price of electricity in the peak is more expensive than the price of electricity in the valley. Through the photovoltaic array in the case of light will be converted into solar energy, through the solar energy controller inverter integrated machine to the load power supply, at the same time to the battery charging; in the absence of light, through the battery to the solar energy controller inverter integrated machine power supply, and then to the AC load function power supply. Dual-mode switching ensures power supply requirements.

Grid-connected photovoltaic energy storage system

Composed of PV modules, solar controller, storage battery, grid-connected inverter, current detection device, load, etc. Capable of increasing the proportion of self-generation and self-consumption. When the solar power is less than the load power, the system is powered by solar energy and the grid together, and when the solar power is greater than the load power, the solar energy supplies power to the load while storing the excess electricity through the inverter.

Microgrid System

Distributed power supply, load, energy storage system, and control devices constitute the power distribution network. It can convert decentralized energy sources into electricity locally and then supply local loads nearby. A Microgrid system is an autonomous system capable of self-control, protection, and management, which can not only be connected to the external power grid in parallel with the grid, but also operate in isolation, which greatly solves the problem of grid-connection of distributed power sources and promotes large-scale access to distributed power sources and renewable energy sources, and is a kind of smart grid system that efficiently supplies loads with multiple forms of energy and realizes an active power distribution grid.

There are four main ways to monetize a PV on-grid and off-grid energy storage system:

Energy saving and cost reduction

Direct Savings: After installing a solar PV system, users can save money on their electricity bills by using solar-generated electricity directly, reducing the amount of electricity purchased from the grid. For commercial users in particular, the energy savings are even more significant as commercial electricity prices are usually higher than residential electricity prices.

Improved energy efficiency: Combined with an energy storage system, customers can store energy when solar power generation is high and use the stored energy at night or when power generation is low, further reducing reliance on grid power.

Peak-to-Valley Arbitrage

Demand Response: Users can participate in demand response programs on the grid by adjusting their energy use patterns, such as reducing grid electricity use during periods of peak grid load, in exchange for rewards or incentives from the power company.

Peak-Valley Arbitrage: In areas with peak and valley differences in electricity prices, users can utilize energy storage systems to store energy during periods of low electricity prices and then use it or sell it to the grid during peak periods, thereby realizing an economic profit.

Value-added services

Grid Auxiliary Services: Energy storage systems can provide grid auxiliary services such as frequency regulation and voltage support. These services are critical to maintaining grid stability and operators can be compensated for providing them.

Revenue from electricity sales

Excess Power Sales: When solar power generation exceeds a customer’s own needs, the excess power can be sold to the grid, generating additional revenue.

Policy incentives: Governments in some regions may offer subsidized solar feed-in tariffs or other incentives to encourage the use of solar power.

What are the energy storage system methods for solar PV?

Lithium-ion battery: Lithium-ion battery is one of the most commonly used solar PV energy storage methods. It has high energy density, long life, fast charge/discharge rate, and high efficiency.

Lead-acid battery: Lead-acid battery is a traditional and widely used energy storage technology. It is one of the most common energy storage methods in solar photovoltaic systems, with low cost and good stability.

Lithium Iron Phosphate Battery: Lithium Iron Phosphate Battery is an emerging energy storage technology with high energy density, long life, and high safety, which is considered to be one of the ideal choices for solar PV systems.

Lithium ternary batteries: lithium ternary batteries are widely used in the field of energy storage, they can be applied in all kinds of environments because of their high-quality safety and wider temperature benefits, while lithium ternary batteries are very stable battery packs with high capacity and high energy density.

Solar Energy Storage Photovoltaic Application Scenarios

Solar street light system solutions

Solar street lights are widely used in highway intersections, curves, bridges and other dangerous roads with potential safety hazards, using lithium battery packs can be replaced in 15-20 years, playing a better cost-effective.

Independent power supply system solution for remote areas

According to the power can not supply remote villages, individual homes and other places in need of power demand, is the forest, farms or breeding areas of the power supply solutions.

Solar power supply solution for communication base stations

Utilizing solar energy to provide backup power supply for communication base stations, it can provide energy for communication base stations in special circumstances and solves the problem of power supply for communication base stations mainly in remote areas and uninhabited areas. It realizes the power supply of communication base stations, microwave, and optical relay stations.

Solar power supply solution for cathodic protection of oil pipelines

The power factor restricts the development of buried pipes in areas without electricity, which is more prominent for oil, gas, and water pipelines. Making full use of solar energy resources to supply power is one of the best ways to solve the problem in areas without electricity.

Solar power supply solution in the transportation field

The solar energy storage system can monitor the entire highway, realize the automatic detection of traffic events and 24-hour monitoring and video recording, and provide important support for road managers to find and deal with traffic accidents in time and effectively guide traffic. The traditional field monitoring equipment is affected by distance, terrain, region and other aspects of the construction cost is too high at the same time. Solar photovoltaic power supply can save construction costs, and photovoltaic power generation construction and maintenance is relatively convenient.

Solar power supply solution for meteorological, hydrological, forestry and other field station construction

Solar micro-meteorological monitoring system is developed and designed to cope with the micro-meteorological environment. The solar automatic weather station contains temperature sensors, rainfall sensors, wind speed, and direction sensors, which can automatically observe and record the air temperature value, precipitation, rainfall, wind direction, and wind speed under unattended conditions. The whole set of equipment that use solar power, is a set of data acquisition, processing, storage, and communication of a fully automatic weather station, the data are automatically transmitted to the data processing center, to avoid catastrophic weather.

The vast majority of telemetry stations and relay stations of the hydrological automatic measuring and reporting system are located in remote areas with inconvenient transportation and difficult power supply, and some of them are even on high mountains. Adopt solar power generation systems to ensure the normal power supply of hydrological telemetry stations and relay stations, and use a UPS power supply to ensure the reliable and safe power supply of the central station has become a common mode of power supply.

The use of solar power to solve the problem of forest fire monitoring equipment and forest management station power supply has become a fast and effective way, both economical and energy-saving, environmentally friendly cuts using lithium batteries can make the energy storage system have a long service life, stable performance, low maintenance costs.

Family wall-mounted battery energy storage solutions

Home wall-mounted energy storage systems can store the excess power generated by solar photovoltaics during the day for use at night or when the sun is not enough, effectively reducing the dependence on the power grid and electricity expenses, and improving energy independence, especially important for families living in remote areas or facing frequent power interruptions. Wall-mounted batteries can be used as an emergency power source in the event of a grid failure or power outage, ensuring that critical household equipment (e.g., refrigerators, lighting, etc.) continues to operate. Wall-mounted designs save space and are relatively easy to install and maintain, making them suitable for a wide range of residential environments.

Integrated Energy Storage System Solutions

Integrated energy storage systems combine solar power generation, energy storage, and energy management to achieve smarter, more optimized energy use while improving energy efficiency. Suitable for applications of all sizes, from residential to commercial buildings and even industrial facilities, they can be customized to meet specific needs. By providing demand response and peak reduction, integrated energy storage systems help balance the load across the grid, improving the overall stability and efficiency of the grid. Electricity rates can be reduced by reducing peak demand, and for regions where electricity prices are divided into peaks and valleys, peak and valley price differential arbitrage can be realized through energy storage systems.

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