Main content:
Due to the instability of solar radiation, the conversion of light energy to electrical energy received by solar panels is fluctuating and unstable. If the solar panel is directly connected to the battery, it is easy to damage the battery. In order to solve this problem, solar charge controllers have emerged.
In this article, the introduction of the top 6 solar charge controller manufacturers in 2025 in the world is the main content, but at first some basic things about the solar charge controller will be stated.
What is solar charge controller
Solar charge controller is an automatic control device used in solar power generation systems to control the charging of multiple photovoltaic cell arrays to the battery, as well as the power supply of the battery to the load of the solar inverter.which can control and stabilize the energy charged by multiple solar panels to the battery, and use their own display screens, Bluetooth WIFI, buttons and other methods allow users to easily set battery parameters and control usage, in order to extend the system's lifespan as much as possible.
The type of solar charge controller
Solar charge controllers can be classified into single channel controllers, multi-channel controllers, pulse width modulation types, intelligent controllers, etc.
Single channel controller refers to a controller with a single input and low photovoltaic power, generally used for small devices such as solar lights.
A multi-channel controller divides photovoltaic modules (or arrays) into multiple branches and can automatically set different charging currents based on the charging status of the battery. The multi-channel controller achieves battery overcharge and overdischarge protection by comparing the battery voltage with the overcharge protection voltage and overdischarge protection voltage.
Pulse width modulation controller (PWM) controls the charging process of the battery through pulse mode. The electrical structure is simple, and the controller consists of a power main switch and capacitor, as well as drive and protection circuits. Here is more details about what is PWM, for your reference.
Another type is MPPT controller, which adds a power device and control circuit such as inductor and power diode compared to PWM controller. Inverter with MPPT has maximum power tracking function, and during battery charging, solar modules can output maximum power.
Top 6 solar charge controller manufacturers in 2025 in the world
In today's pursuit of green energy, solar controllers have become an indispensable part of households, businesses, and commercial sectors. With numerous brands and models on the market, it is difficult to choose solar controllers that are both practical and efficient.
The following is the list of the top 6 solar charge controller manufacturers in 2025 in the world. If you are confused in choosing the solar charge controller, this list of the top 6 solar charge controller manufacturers may help you narrow down the choices.
| 1 | Phocos |
| 2 | Steca |
| 3 | SRNE |
| 4 | Epever |
| 5 | OutBack Power |
| 6 | Remote Power |
Phocos
| Company website | https://www.phocos.com |
| Founded | in 2000 |
| Company headquarter | Ulm, Germany |
Company overview
Phocos is one of the world's largest suppliers of solar product components for non-grid connected power systems and the top 6 solar charge controller manufacturers, engaged in product design, development, manufacturing, and sales of various types of products suitable for the global solar market.
Main products
Phocos has a wide range of products, including photovoltaic controllers, inverters, as well as high-efficiency DC cooling and lighting equipment.
Company updates
In March 2024, Phocos congratulated PALS S.A.–Power and energy solutions on 50 years in the energy industry and express our gratitude for being a Phocos partner for 18 years and wished them many more years of success and look forward to our continued partnership.
Steca
| Company website | https://www.kontron-solar.com/ |
| Founded | in 1976 |
| Company headquarter | Bavaria, Germany |
Company overview
Steca is one of the professional manufacturers of large-scale solar charging controllers, and its products have powerful functions. Its charging controller is specifically designed for small and medium-sized photovoltaic power generation systems. There is an ecological future in service and production.
The company makes a global contribution in reducing power consumption and allowing for effective utilization of alternative energy sources by providing high-performance products. Steca has established a broad foundation to achieve these goals. The company provides electronic services for residential, automotive, agricultural, environmental, transportation and construction technology, as well as industrial and medical sectors.\
Main products
The main products include solar charge controllers, sine wave inverters, DC/DC converters, solar controllers, etc.
SRNE
| Company website | https://www.szshuori.com/ |
| Founded | in 2008 |
| Company headquarter | Shenzhen, China |
Company overview
SRNE is a high-tech enterprise specializing in the research and development, production, and sales of solar photovoltaic controllers and systems.
SRNE has mastered core technologies, independently developed 8 high-precision and high standard technologies, and obtained more than 60 invention patents. Its vision is to become a leading global provider of photovoltaic control technology, products, services, and solutions, and comprehensively promote the world to enter a new era of photovoltaic popularization and application.
Main products
The main products include solar intelligent controllers, LED dedicated controllers, mains complementary controllers, street light controllers, household system controllers, power station controllers, inverter controllers, wind solar complementary controllers, and other solar related products.
Company updates
In December 2024, SGS, an internationally recognized testing and certification body, issued QTL accredited laboratory qualifications to SRNE. SGS QTL Accreditation Laboratory "is a specialized accreditation qualification launched by SGS for enterprise laboratories. It is only authorized for enterprise laboratories with ISO 17025 standard qualifications, aiming to strengthen product compliance and testing fairness, accelerate product launch, and bring more value to enterprises.
EPEVER
| Company website | https://www.epever.com.cn/ |
| Founded | in 2007 |
| Company headquarter | Beijing, China |
Company overview
EPEVER is a research and manufacturing enterprise specializing in the development and manufacturing of photovoltaic off-grid controllers, inverters, integrated control inverters, photovoltaic energy storage inverters, and photovoltaic power generation solutions. EPEVER is the first sharing channel for information, and is also committed to a zero carbon future together.
Main products
Solar controllers, off-grid inverters, hybrid energy systems, accessories, smart energy management, solar hybrid energy management systems, energy storage power sources, batteries, etc. are the main products of EPEVER.
Company updates
In June 2024, EPEVER plans to apply for the delisting of its shares on the Chinese stock transfer system in order to better focus on company management, improve decision-making efficiency, reduce operating costs, and protect shareholder interests, based on its strategic development plan and actual business operations.
OutBack Power
| Company website | https://outbackpower.com/ |
| Founded | in 2001 |
| Company headquarter | Texas, USA |
Company overview
Outback Power’s founders, three engineers with a long history of developing technologies for renewable energy applications, believe that the renewable energy industry was on the verge of unparalleled growth, driven by the emerging need for sustainable alternative sources of energy.
Main products
Outback Power designs and manufactures hardware used by solar installers to house and offers an advanced line of rugged inverter products that delivered pure sine wave power for off-grid residential and commercial installations and some other expansion products.
Remote power
| Company website | http://www.remotepowersolar.com/ |
| Founded | in 2005 |
| Company headquarter | Beijing, China |
Company overview
Beijing Remote Power Renewable Energy Technology company , is one of China largest manufacturers in solar industry for 12 years. Owing to the advantages of strict quality control, innovative design and advanced testing facility. Our reliable products are very popular worldwide; and we have got good reputation from all over the world.
Main products
Remote Power's main products are solar charge controller, all in one.
Conclusion
At present, the popularity of solar energy systems is much higher than before, and solar controllers play a crucial role in it. Choosing a high-quality, highly adaptable, and stable solar controller can extend the service life of the entire solar energy system.
Therefore in this article the top 6 solar charge controller manufacturers in 2025 in the world are introduced for your reference if your are looking for a high-quality solar controller for your solar system.
Related articles: solar power controller inverter, Top 5 inverter battery companies, global top 10 best solar inverter brands