Jiangsu Acrel Micro-grid Research&Development Institute, the manufacturer base located in Jiangyin, Wuxi City, is a pioneer enterprise integrates the informatization and industrialization of Jiangsu province. It has a multiple function product test center(CNAS certified), which can carry out a variety of tests on environment, electromagnetic compatibility, safety and reliability. The production relies on the advanced information management system and strictly follow the ISO9001 management standard, which provide a guarantee for industrialization and large-scale implementation of the products. The annual capacity of the electrical meter is 2 million sets, 1.5 million power transformers and 10,000 sets of energy-saving cabinets.