ACDCPower Solutions

Found in 1989, Preen (AC Power Corp.) is a world leader in power supply systems and has been developing AC and DC power supplies based on the core technology of power conversion. We provide advanced, reliable and cost effective power products including AC power source, DC power supply, regenerative grid simulator, power supplies for aerospace and defense, and line conditioners.

Preen's customer base consists of major international corporations. Significant markets Preen served include electric vehicle,renewable energy, home appliance and consumer product manufacturing, military, aerospace,and general R&D and EMC compliance testing.

35th Anniversary

Found in 1989, Preen (AC Power Corp.) is a leader in power supply system and has been developing products based on the core technology of Power Conversion. We boast one of the broadest product line of power supply, includes AC Power Source, DC Power Supplies, Power Supplies for Defense Industry, Renewable Energy Simulators, Line Conditioners and UPS.

  • 2022
    • Granted Taiwan Excellence Award for AFV series
  • 2020
    • Delivered 1MW PV Inverter Test System, the biggest inverter system ever installed in Taiwan.
    • Launched High Power Programmable DC Power Supply, ADG+ series.
    • Awarded with D&B Top 1000 Elite SME Award three years in a row.
  • 2019
    • Launched programmable high power AC power source, AFV+ series
  • 2018
    • Granted Taiwan Excellence Award for ADG-P series
    • Launched programmable DC power supply, ADG-L series
    • Receives D&B Top 1000 Elite SME Award
  • 2017
    • Granted Taiwan Excellence Award for AFV-P series
  • 2016
    • Launched high performance programmable AC&DC power supply, AFV-P series.
  • 2015
    • Launched programmable high power DC power supply, ADG-P series.
    • Provided 2000kVA programmable AC power source to Haier for centralized air conditioning system R&D and verification applications. (world-largest stand-alone programmable AC source)
  • 2014
    • Granted “High Power Engineering Technology Research Center” by Jiangsu province.
  • 2012
    • Launched the new regenerative grid simulator, PAS series
    • Granted “Enterprise Technology Center” by Suzhou city.
  • 2011
    • Annual sales of AC source exceeded 65MVA, which made Preen the world's biggest AC source manufacturer.
  • 2010
    • Launched the programmable AC power source, AFV series.
    • Launched the first-generation grid simulator, ACST series
  • 2009
    • U.S. office established.
  • 2008
    • Launched the shore power supply, BPS series.
  • 2007
    • Launched the new generation of AFC series AC power source.
    • Launched the rack-mount DC power supply, ADC series.
  • 2001
    • Manufacturing facility in Suzhou, China, established.
  • 1993
    • Manufacturing facility in Tianjin, China, established.
  • 1990
    • Launched the world's first energy-saving static line conditioner, APS series, with only the 1/4 of the size and weight of conventional one
    • Launched the first-generation of AC power source, AFC series.
  • 1989
    • AC Power Corp. was established in Taipei, Taiwan.
Core Values and Vision
Driven by the company motto: Value and Innovations, Preen's objective is to continuously provide the customers and markets with solutions that help them to better innovate products and solve issues. With continuous effort on product innovations and quality improvements, AC Power Corp is able to establish its name as the leading power supply provider and has one of the highest total power shipped in the world.
Global Network

With corporate office located in Taipei, Taiwan, Preen has total three manufacturing facilities and multiple branch offices and service location worldwide, including the U.S. office located in Irvine, California, to provide most timely service to customers.

Honor & Award

Preen's core philosophy, Value & Innovation, reflects on the continuously improvement of product quality and design. Many of our products are CE and RoHS certified, in line with international safety standard and environmental friendly development. All Preen's manufacturing facilities have ISO9001:2015 certifications. We keep rigorous controls on manufacturing processes and plant management to ensure only the top-quality products are delivered.



Preen are proud to offer rewarding careers in an atmosphere that stimulates creativity. We encourage autonomy and strive to create a high-quality workplace. Explore our opportunities and join our dynamic team today!