PWS1 and PWG2 series Storage Inverter are designed and produced by Sinexcel Electric Co., Ltd., a 8-yr old company with $100 Million annual sales revenue and 150 Engineers of 500 employees. Over 15Mw installation of energy storage inverter over China, Southeastern Asia and Europe. The PWS1 series storage inverter is used for 1AC1DC connection and include PWS1-50K-NA, PWS1-100K-NA and PWS1-150K-NA.