What are the shipping costs for warranty repairs?

For quality problems during the warranty period, the company bears freight costs. For out-of-warranty or man-made damage, the customer pays.

What communication interfaces are available?

Optional interfaces include RS485, USB, GPRS, WIFI, and Ethernet.

20kw 30kw Grid Tie Controller for Wind Turbine with Dump Load

Name: 20kw 30kw Grid Tie Controller for Wind Turbine with Dump Load
Brand: Qingdao Greef New Energy Equipment Co., Ltd.
SKU: 783425112

Shandong, ChinaQingdao Greef New Energy Equipment Co., Ltd.

US$500.00-18,000.00

1 set

Sample price:US$5000.00/set.Request sample

Product profile

Customization

Available

Condition

New

Certification

Model NO.

GLF-GT

Application

Charger Controller, Wind Controller, Voltage Controller

Rated Voltage

AC to DC

Function

Rectifier, Control, DC Output

Color

Grey

Type

Wind Controller, Wind Turbine Controller

Work Time

24 Hours

Warranty

1 Years for Free

Display

LCD Screen

Transport Package

Carton / Playwooden Case

Trademark

GREEF

Origin

China

HS Code

90328990

Production Capacity

400 Sets Per Month

Key features

Large LCD Display: Real-time monitoring of wind turbine voltage, current, solar panel data, and total power generation.

Data Backup System: Built-in button battery saves history data for 30 days during power failure.

Comprehensive Protection: Features over-voltage, grid cut-off, regulated supply output, and arrester protection.

Remote Monitoring: Supports WIFI and GPRS for real-time state monitoring via PC and mobile devices.

Multiple Brake Options: Compatible with mechanical yawing, hydraulic brake, electromagnetism brake, and manual brake.

Emergency Stop Function: Immediate turbine braking activated by pressing the emergency stop switch.

1-Year Free Warranty: Covers free maintenance services and parts for one year from shipment date.

Lifelong Technical Support: Provides lifetime technical assistance and part cost supply for all customers.

Company profile

Qingdao Greef New Energy Equipment Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-03-18Nearest Port: QINGDAOAverage Response Time: ≤7.24hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryQingdao Greef New Energy Equipment Co., Ltd. is identified as both a trading company and manufacturer/factory in China, offering wind turbines, permanent magnet generators, hybrid systems, and related equipment. Its stated capabilities include generator coverage from 500W to 5MW, two production lines, annual output of 1,000 wind turbine/permanent magnet generator sets, and 6–10 R&D engineers and quality-control staff. The company reports QHSE, ISO 9001, and HSE management certifications, CE-certified exports, warranty periods of 3–5 years, and after-sales service as part of its end-to-end offering. Evidence also supports customization through design, prototyping, production, and quality-control services. However, the provided information does not sufficiently establish financial credibility or a broad customer track record; only one buyer and one trade transaction are listed.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory. Its stated product portfolio includes wind turbine systems, permanent magnet generators, controllers, inverters, solar systems, and batteries, supporting a combined manufacturing and trading role.

CertificationsThe supplier states that its management systems include QHSE, ISO 9001, and HSE. It also states that products exported to Europe, South America, and North America carry CE certification, indicating documented management-system and product-certification claims.

After-Sales capabilityThe company describes end-to-end services including after-sales service and states that exported products have 3–5 year warranty periods. It also claims rapid response and guaranteed quality and on-time delivery through Alibaba Trade Assurance, providing explicit support for post-sale capability.

R&D capabilityThe supplier states that its permanent magnet generators range from 500W to 5MW and offers multiple renewable-energy technologies, including vertical- and horizontal-axis wind turbines, hybrid systems, and disc coreless generators. Its stated engineering and renewable-energy innovation activities support innovation capability, although no independently verified R&D results are provided.

Production capacityThe supplier reports two production lines and annual output of 1,000 wind turbine/permanent magnet generator sets. It also states generator coverage from 500W to 5MW and has 6–10 quality-control staff, providing explicit evidence of established production capacity.

Customization capabilityThe company explicitly claims customized end-to-end solutions covering design planning, schematic development, 3D renderings, physical prototyping, volume production, quality control, and after-sales service. This directly supports customization capability across product-development and delivery stages.