China String Inverter Manufacturers, Suppliers and Factory - Custom String Inverter

Your Professional String Inverter Supplier!

Zhejiang Shengyang New Energy Co., Ltd., a new energy company established in 2004, specializes in energy storage battery packs, portable power supplies, home energy storage systems, inverters, and other products. Shengyang has established long-term strategic partnerships with thousands of overseas new energy industry clients. We are committed to creating maximum value for our clients and sincerely look forward to collaborating with related companies and industries both domestically and internationally.

Sunny Island 6KW Inverter
Sunny Island series supports three parallel units to form a three-phase electrical system with high controllability. And the inverter has the function of remote monitoring, convenient for users to use
Three Phase String Inverter
Max. 4 MPP trackers,Max. effciency up to 98.7%. Zero export application, VSG application. String intelligent monitoring (optional). Wide output voltage range. Anti-PlD function (Optional).
Solar Inverter SUNAL
Features. The no-load loss is small, less than half of the same powerhigh-frequency machine. Pure sine wave output, adaptable to different loads. Output short circuit protection function. According

Why Choose Us

Patent Certificate

We have obtained eight patents and ISO 9001 quality management system certification. Our products have received numerous international certifications, including CE, MSDS, and IEC, fully demonstrating our comprehensive strength in technology development and quality management.

Sales Market

Our customers span over 70 countries and regions worldwide, demonstrating our strong market expansion capabilities. We have established a comprehensive service system encompassing technology development, manufacturing, customized solutions, and localized after-sales service, enabling us to provide efficient and professional support to our global customers.

Customization Services

We offer a variety of configuration options to meet our customers' personalized needs. Through scientific system design, rational equipment selection, standardized installation procedures, and comprehensive maintenance services, we ensure a stable and reliable power supply for communications equipment, allowing for flexible adjustments to suit diverse application scenarios.

Specification

Output values AC-Side
	Sunny Island 6.0H	Sunny Island 8.0H
Nominal AC voltage (adjustable)	230 V(202 V253 V)	230 V(202V253 V)
Nominal Frequency (adjustable)	50 Hz (45 Hz..65 Hz)	50 Hz (45 Hz..65 Hz)
Continuous AC output at 25C	4,600 w	6,000W
AC output power for 30 min at 25℃	6,000W	8,000 w
AC output power for 5 min at 25C	6,800 W	9,100W
AC output power for 3 seconds at 25℃	11,000W	11,000 W
AC continuous power at 45℃	3,700 W	5,430W
Nominal AC current	20 A	26A
Maximum current (peak value) for 60 ms	120A	120 A
Total harmonic factor of output voltage	<4%	<4%
Power factor cosp	-1.+1	-1.+1

Advantages of String Inverter

Easy troubleshooting

The main advantage of a string inverter is that you only need one (or a few) of them to convert the DC electricity coming from your solar system to AC power. This makes troubleshooting relatively easy when things go wrong.

Lower costs

Installing a single string inverter on a solar panel installation is cheaper than installing microinverters. Less labor is required and string inverters are more affordable than many microinverters.

Lower probability of wiring mishap

There are less connection points between solar panels and the string inverter/s. There's a reduced chance that a string inverter setup will be improperly cabled, compared to a microinverter system.

Basic Principles of String Inverter

The operation of string inverter technology is straightforward. It takes the direct current (DC) electricity generated by a panel string and converts it into alternating current (AC) electricity—the type commonly used in homes or businesses and fed into the utility grid in grid-tied systems.

String inverters fall under the category of "centralized" inverters, meaning they are installed separately from the solar PV array. All DC electricity generated by the modules is directed to the inverter. These inverters are often integrated with batteries to store power for later use.

Solar inverters, particularly when equipped with Maximum Power Point Tracking (MPPT), are generally efficient. For optimal efficiency with a string inverter, it is essential that solar panels in each string receive sunlight, the string's output may be diminished.

Applications of String Inverter

Residential Solar Systems:

In home installations, string inverters are popular due to their cost-effectiveness and reliability. They efficiently convert the DC electricity generated by rooftop solar panels into AC power for household use.

Commercial Solar Installations:

For small to medium-sized commercial projects, string inverters are used to manage the power output from solar arrays, ensuring that businesses can harness solar energy effectively.

String Inverter Installation

Mount string inverters in cool, dry areas away from direct sunlight.

Use a sturdy wall with ample clearance for ventilation—preferably at eye level for easier access.

Locate string inverters close to electrical panels to minimize power loss.

Order Process

Contact Customer Service
Submit Order
Obtain a Quote

Confirm Order

Arrange Payment

Track Order

Receive and Inspect Goods

Packaging and Shipping

Packaging	Carton, plastic bag
Transportation methods	Road transport, rail transport, sea transport, air transport

FAQ

Q: What is the major advantage of string inverters?

A: The main advantage of a string inverter is that you only need one (or a few) of them to convert the DC electricity coming from your solar system to AC power. This makes troubleshooting relatively easy when things go wrong.

Q: How long do string inverters last?

A: String inverters usually last 10 to 15 years. Most people need to replace them once during the life of their solar system.

Q: How does a string inverter work?

A: A string inverter system aggregates the power output of groups of solar panels in your system into "strings." Multiple strings of panels then connect to a single inverter where electricity is converted from DC to AC electricity.

Q: How do I know what size string inverter I need?

A: Match your inverter capacity to your solar array size. A 5kW solar array typically needs a 5kW inverter. However, it's common to slightly “oversize” the array (DC) compared to the inverter (AC) by 10-20% to account for system losses and maximize energy production.

As one of the leading string inverter manufacturers and suppliers in China, we warmly welcome you to buy custom made string inverter from our factory. Good service and quality products are available.

Pv String Inverter, Sunny Island 6KW Inverter, Three Phase String Inverter