Solar energy systems are becoming more popular, especially as a result of growing electricity demand and the need for clean energy. ATS is a necessary component in every solar energy system, offering the capability to quickly and reliably transfer power from other sources (e.g., generators) to the solar energy system when the grid loses power.
As a result of technological innovations, many innovative and intelligent solar ATS products will be available in the market by 2025 that will provide customers with a more efficient and reliable power switching experience.
What is Automatic Transfer Switch (ATS)?
A transfer switch is an electrical switch that switches loads between two power sources. The toggle switch is automatic and will be triggered when they detect a power outage or power on in one of the power sources. In solar energy systems, the main role of ATS is to ensure that solar power can be quickly supplied to households or businesses during power outages, avoiding losses caused by power outages.
Why solar ATS is crucial in 2025
With the arrival of the solar energy industry in 2025, intelligence and efficiency have become the two major requirements for solar energy ATS. For companies or individuals, choosing high-performance automatic transfer switches will help them maximize solar energy utilization efficiency and ensure the continuity of power supply.
The benefits of solar ATS
- Reliability: Good quality ATS can ensure the switching of power to the solar system instantly in the event of a grid power outage.
- Energy saving: Reduce energy losses and ensure maximum use of solar energy resources.
- Automation: Intelligent ATS can automatically adapt according to demand, reducing human intervention.
ATS not only ensures the switching of power during power outages, but also optimizes power supply through intelligent control, ensuring stable operation of the system in any situation.
Overview of the market size of solar automatic conversion in 2025
By 2025, the global market size of conversion switches will reach approximately 2.4 billion US dollars, and by 2032 it will reach 3.8 billion US dollars, with a compound annual growth rate of 6.50% between 2025 and 2032.
A transfer switch is a device that is built to safely link or break the connection of more than one power source and electrical load and finds widespread applications in homes, companies, and campuses. When backup generators became more popular in residences and businesses, especially during power outages, the demand in the market for conversion switches also increased.
The 5 Best Automatic Transfer Switches for Solar Energy in 2025
Go Power Automatic Transfer Switch
Go Power is a brand of power supplies and related electrical appliances, suitable for finding low-cost entry-level products. The Go Power TS-30 automatic transfer switch has a rated current of 30 amperes and can automatically switch between two 120 volt AC power sources, ensuring alternating power supply between the inverter and shore power to prevent AC feedback.
- Voltage: 120 VAC
Ampere: 30 Amperes
Size: 9.65 “long x 7.28” wide x 4.75 “high
Weight: 3 pounds
Price: 143.99 USD
JONASC 63A 2P Dual Power Automatic Transfer Switch
The ATS of JONASC brand also has good quality, ranking high, and offers two styles of 110V and 220V options. The line current is between 6A and 63A, and the operating frequency is 50HZ/60HZ, with excellent switching ability
- ATS level: CB level
Insulation voltage: AC110V
Conversion time: about 2 seconds
Price: $41.95 USD
JOTTA PC type automatic transfer switch
The PC type automatic transfer switch of JOTTA brand is suitable for solar photovoltaic inverters and supports 2P, 3P, 4P DIN rail installation for photovoltaic inverters. This ATS is suitable for emergency power systems with a rated voltage of 400V, rated current of 100A, 50/60Hz, and a control voltage of AC220-230V.
- Rated current 100 amperes
Installation type DIN rail installation
Relatively few comments
This rating is only 4.2 stars
Price: $48
Spartan Power 50A 5500W Automatic Transfer Switch
Spartan Power 50A 5500 Watt Automatic Transfer Switch Great for Solar & Wind Off Grid Systems, There are quite a few buyers of this ATS, from small business brands that offer a one-year warranty service
- Switch: 50A
Maximum rated power: 5500 watts
Input voltage: 110-120Vac 60Hz or 220Vac 50Hz
Output voltage: 110-120Vac 60Hz or 220Vac 50Hz
Conversion time: ≤ 10ms
Price: 88 USD
ONESTOP is an ATS suitable for solar energy systems
ONESTOP is a professional manufacturer of conversion switches, producing ATS that is suitable for various solar energy systems. If you are looking for low-cost and entry-level products, you may need to consider them. ONESTOP automatic transfer switch ranks high because it is an excellent entry-level choice for many people. And support customization and multi specification wholesale
Rated voltage 230VAC
Rated insulation voltage 500V
Dielectric strength 2.0kV
The price is cheap
Click to view the automatic switch series
Installation and maintenance of solar ATS
Solar ATS installation requires some professional expertise, so it is strongly recommended to complete the installation through a certified electrician. Installation steps generally include:
- Choose a suitable location: Mount the ATS in a well-ventilated area to avoid heat accumulation.
- Solar inverter and generator connection: Ensure stable connection of ATS with all power devices.
- Test equipment functionality: Carry out complete testing post-installation to ensure the equipment is operating normally as intended.
Conclusion
With the rapid development of solar energy technology, many advanced solar automatic transfer switches will be available in the market by 2025, which can ensure the stability of power switching, improve energy utilization efficiency, and have more intelligent functions. When choosing the appropriate ATS, you can choose ONESTO as your partner for the transfer switch, providing you with the most favorable and high-quality ATS solution
FAQ
How to render ATS compatible with solar power systems?
Before purchasing an ATS, it is necessary to confirm its compatibility with your solar inverter and generator to ensure proper functioning.
What are the precautions when installing solar ATS?
During installation, place the equipment in a well-ventilated area, avoid overheating, and ensure that all power connections are secure.
How to maintain solar ATS?
Regularly inspect equipment, clean wiring, and troubleshoot to ensure long-term stable operation of the system.
Read the following article for more information:
Selection guide for three-phase automatic transfer switch
Price Guide for Automatic Transfer Switches in 2025
Selection Guide for Engine Automatic Transfer Switch