Greef New Energy

Greef New Energy GREEF provides professional full-system solutions for wind solar and hydro turbine energy solution .

From Permanent Magnet Generators to Controllers, Inverters, and Lithium Batteries Qingdao GreeF New Energy Equipment Co,Ltd We are global supplier which focus on Permanent Magnet generator, wind turbine ， wind turbine blades, controller, invertor etc. 1 company establishment 2014-03-18 ,2 Management System :HSE, QHSE ,Business Type:Trading Company , 4 BV Serial NO.: MIC-ASI165359 ,5total barance-5

in china mainland, Our certificate of GDG & certificate vertical axis wind turbine ,& blades ,GDF series generator ,OEM,ODE our Patner , jidd, sunn wind , Deitatronic ,Wz , Saururja, Hofler Smtcl etc
We have distributed our products to France, Ireland, South Korea, the United States, Israel, Kazakhstan, Italy, Poland, Spain, India, Britain, Poland, Mexico, Romania, Australia, Germany, Canada, Portugal, and other countries and regions
"GreeF" have its own engineer design team which is design products ourselves. Moreover, we have successfully obtained CE approvals and supports from our customers, which boost our business day by day! 1 bureau , SGS , TUV, Intertek 2 top 3 suppliers of generators product with all 5 star feedback on Alibaba.COM & Maid in china , 4 - 7 dats 24 hours on time service,5-
3 years guarantee service ,trade experience with more the 60 countries,support safe payment through Alibaba Trade assurance
International Commercial Terms( In co-terms ):FOB, CIF, CFR, Terms of Payment T/T, D/P, PayPal, Western Union, Small-amount payment Export Percentage:90% ,Annual Output Value:US$1 Million - US$2.5 Million ,Import & Export Mode:Have Own Export License ,please contact with us

Qingdao GreeF New Energy Equipment Co., Ltd. Address:2-111, No, 6 Changcheng South Road, Chengyang Dist, Qingdao, Shandong, China 266000
https://qd-greef.en.made-in-china.com
https://greefenergy.en.alibaba.com
Website: https://www.greefenergy.com
Hot line tel:+8653267731422 ,
Email:[email protected] ,

19/08/2026

Two Axial Flux Coreless Generators – Heading to India!

We're excited to share that two axial flux coreless permanent magnet generators, custom‑ordered by our customer in India, have successfully passed testing, been securely packed, and are now ready for shipment! 🚢

Why Axial Flux Coreless?
✅ Higher Efficiency
✅ Higher Power Density
✅ No Cogging Torque
✅ Simple, Robust Structure
✅ Excellent Cooling
✅ Versatile Applications

Every generator is 100% tested before shipment – power, voltage, speed, and frequency all verified to meet customer specifications.

We look forward to powering more sustainable projects around the world. 🌍⚡

💬 Interested in a custom generator for your project?
📩 Email: [email protected]
🌐 Website: https://www.greefenergy.com/

Why Choose GREEF ENERGY for Your Next Renewable Project?✅ Expert Engineering, Not Just SalesOur senior engineers (12-20 ...
18/08/2026

Why Choose GREEF ENERGY for Your Next Renewable Project?

✅ Expert Engineering, Not Just Sales
Our senior engineers (12-20 years of experience) don't just sell parts; they build solutions. We use professional simulation software (8760-hour annual modeling) to design customized Wind-Solar-Hydro systems tailored exactly to your site and load needs.

✅ Seamless System Integration
Struggling to match small wind turbines with solar inverters? Our self-developed PCTC controllers integrate perfectly with top brands like DEYE, SOLIS, and GROWATT. Smart EMS dispatch ensures maximum efficiency and stability.

✅ 12+ Years of Real-World Experience
From remote off-grid sites to commercial peak-shaving projects, we’ve done it all. We even provide advanced safety linkage controls for wind yaw and hydro gates to protect your investment in extreme weather.

✅ Factory Direct & Quality Assured
As the manufacturer of PMGs (500W-5MW) and axial flux generators, we offer competitive pricing with strict quality control. Backed by CE certification and a 3-5 year warranty, plus remote & on-site technical support.

What We Do Best: Permanent Magnet Generators, Wind Turbines, Smart Controllers, and Complete Hybrid System Integration.

Stop guessing. Start optimizing.
Message us today for a FREE professional system design and technical consultation!

14/08/2026

Factory Tour Series 5: Step Inside Our Permanent Magnet Generator Factory – Where Efficiency Meets Quality

Today, we're taking you behind the scenes to see where high‑quality PMGs are born. Walking into our workshop, you'll find rows of precision machining equipment and well‑organized production lines. Every step is carried out under strict quality control.

⚡ High Efficiency
⚡ Simple Structure
⚡ Compact Size
⚡ High Power

We offer one‑stop customized power generation system solutions – power, voltage, speed, and frequency all tailored to your requirements.

Permanent Magnet Generator Testing Guide: Ensuring Safety and AccuracyStandardized testing is the foundation for reliabl...
13/08/2026

Permanent Magnet Generator Testing Guide: Ensuring Safety and Accuracy

Standardized testing is the foundation for reliable operation of permanent magnet synchronous generators (PMSGs). We are pleased to share our latest technical guide, which summarizes the core operational procedures that every engineer and technician should master.

Key principles covered:
• Drive power matching – The drive motor power should be no less than 1.1 times the generator's rated power.
• If connected directly to a load without a converter, speed must be stable – Rated speed fluctuation should be controlled within ±1%.
• No-load start-up and stepped load application – Starting under load is strictly prohibited.
• Voltage matching – Ensure that the output voltage matches the rated voltage of the test equipment to prevent overvoltage damage.

From no load/full load voltage characteristics to load type selection and temperature rise testing, this guide provides a complete testing framework for PMSG applications in wind power, hydropower, and diesel driven systems.

Follow us for more professional technical updates, or contact us to learn how our permanent magnet generators can provide reliable power for your projects.

11/08/2026

🎉 Real feedback video received from our customer in Australia!

In the video, our permanent magnet generator paired with the PCTC controller system runs smoothly and seamlessly. Your recognition is our greatest motivation!

⚡ Generator Highlights:
High Efficiency (95%+) · High Power Factor · Compact & Lightweight · Large Starting Torque · Low Noise · Low Temperature Rise · High Reliability · Smooth Torque & Speed

📱 Controller Highlights:
Speed/Wind Speed Real-Time Monitoring · Power Curve Control · Auto Brake for Over-Speed/Over-Voltage · APP/PC Remote Monitoring & Manual Brake · Time Speed Control · Custom Sensor Support

From generator to controller – one-stop customization, fully tailored to your needs!

💬 Have a custom requirement? Drop us a message or email [email protected]

10/08/2026

🎉 3 Axial Flux Generators Tested & Ready for Shipment to Italy!

The coreless design eliminates eddy current losses and cogging torque, allowing the generator to maintain high efficiency across a wide speed range.

✅ High Efficiency
✅ High Power Density
✅ Low-Speed Performance
✅ Low Starting Torque
✅ Smooth Output
✅ Wide Applications

Every generator undergoes strict pre-shipment testing — power, speed, frequency, and voltage are all verified to ensure every unit meets the highest standards.

Thank you for your trust! We remain committed to quality and to providing reliable clean energy solutions for customers worldwide.

📩 For custom orders: [email protected]
🌐 Website: https://www.greefenergy.com/

07/08/2026

⚡ Before shipment, we ran these tests…

Factory Tour Episode 4 – GREEF PMG quality, verified at every stage.

At GREEF, every permanent magnet generator undergoes rigorous quality checks at every stage – from design to delivery. Quality is not a slogan – it's a standard embedded in every process.

Every unit gets a "Quality Pass Code" .

500W~5000kW｜20~3000rpm｜50/60Hz｜Fully Customizable

📩 Comment "Generator + specs" for your solution!

06/08/2026

Factory Tour Episode 3 – The Critical Step from Parts to Products

🔹Why can you trust GREEF permanent magnet generators?
Because we don't overlook a single detail. From 500W to 5000kW, 20rpm to 3000rpm, 50/60Hz selectable, 100% custom-built – no matter if your project is wind power, hydropower, industrial drives, or portable power, we deliver results you can count on.

⚡ Power: 500W ~ 5000kW
⚡ Speed: 20 ~ 3000rpm
⚡ Frequency: 50Hz / 60Hz selectable

📩 Comment "Generator + your specs" below, or DM us directly. The next generator built for you is waiting on our shop floor!

05/08/2026

Factory Series Ep.2——Precision in Every Step, Back on the GREEF Production Line

How broad is our capability?
⚡ Power: 500W ~ 5000kW
⚡ Speed: 20 ~ 3000rpm
⚡ Frequency: 50Hz / 60Hz selectable

In our factory video, you’ll witness, every unit must pass strict criteria before packaging.

We don’t just build generators – we build confidence. Each machine is “run-in” and re-tested to ensure reliability under real-world conditions.

04/08/2026

Inside GREEF Factory: See How Permanent Magnet Generators Are Made from Scratch

🔧 This is not a render—this is our real workshop.
Every GREEF permanent magnet generator is born here.

How flexible are our generators?
📌 Power: 500W ~ 5000kW
📌 Speed: 20 ~ 3000rpm
📌 Frequency: 50Hz / 60Hz optional
📌 Poles: 2 ~ 72
📌 Voltage: 12V ~ 1140V

🔹 Customizable — Power/Speed/Frequency/Poles/Voltage—all adjustable.
🔹 High efficiency — permanent magnet excitation reduces losses.
🔹 Endless applications — wind, hydro, industrial drives, portable power—all handled.

Address

2-111, No, 6 Changcheng Soth Road, Chengyang Dist, Shandong, China
Qingdao
266000

Opening Hours

Monday 08:30 - 18:00
Tuesday 08:30 - 18:00
Wednesday 08:30 - 18:00
Thursday 08:30 - 18:00
Friday 06:00 - 18:00
Saturday 08:30 - 18:30

Website

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