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- Founded
2012-2014
- Started developing frequency converters
- Established the R&D center
- A frequency converter certified by CCS
- A frequency converter equipped in a research vessel
2015
- Technology of common DC grid transferred from E-MS
- Started power system integration in marine business
2016
- Signed the first contract of common DC grid system integration (ShenKuo research vessel)
- Received the CCS Approval in Principle (AIP) of the common DC grid topology
- The series power modules were type approved by CCS
2017
- The first common DC grid system was certified by CCS
- Signed contracts of system integration of a wind installation vessel and a series of yachts
2018
- Signed the contract of the first common DC grid system applied in a wind maintenance vessel in China
- Signed the contract of the first common DC grid system applied in a passenger liner in China
- Products have been equipped in 16 vessels in total
2019
- The ‘ShenKuo’ research vessel was commissioned and delivered to the costumer
- Started research and engineering on the world-largest battery-based vessel, as part of a program of Ministry of Industry and Information Technology
- Products have been equipped in 29 vessels in total, and the amount of signed contract has been over 100 million CNY in total
- The series power modules were type approved by BV and RINA
2020
- Signed the first oversea contract of an S-Hybrid system with Terntank.
- Products have been equipped in 38 vessels in total
2021
- The first foreign trade order of Saisiyi DC networking products was successfully delivered by Sweden Terntank15000DWT Chemical tanker
- Hengtong Yihang, Ocean Wind Power 79; Nengjian Guanghuo 002&quo; Waiting for multiple wind power installation ship projects to be successfully delivered
- We have undertaken the orders of Zhonggu Shipping 4600TEU container ship, Nantong Xiangyu 79900DWT Bulk carrier and other axle belt series in batch, and formally entered the ship axle belt market in a big step
- Achieved outstanding achievements in the wind power market, providing power system assembly for more than 20 offshore factory ship
- Saisiyi domestic inverter has been approved by China Classification Society (CCS) for the type of two quadrant marine variable frequency power module, wide band gap marine full control power module and solid-state switch
- Saisiyi's domestic frequency conversion and DC networking have been applied to a total of 131 ships
2022
- The delivery of the first 120 TEU electric exchange container ship in China ("Jiang yuan bai he") marks the beginning of the electric era for freight ships
- Domestic inverter won the first EU mutual recognition type approval certificate issued by China Classification Society
- Sestech's actual ship performance exceeded 200 ships
