Proving the Business Case for the Internet of Things

Nokia upgrades Chinese state grid optical network

Steve Rogerson
June 6, 2018



The State Grid Corporation of China (SGCC) is upgrading to an optical transport network (OTN) using technology from Finland-based Nokia. The deployment will cover Beijing and Tianjin and will help the SGCC smoothly evolve the transport network from 10Gbit/s to beyond 100Gbit/s.
 
The SGCC constructs and operates power grids providing power to over 1.1 billion people in 26 provinces, autonomous regions and municipalities, covering 88 per cent of China. With a mission to provide safer, cleaner and a more economical and sustainable power, the utility is improving its production and management process.
 
An upgraded optical transport network for support of integrated data network and operations network services is a key step, meeting growing bandwidth capacity demands and paving the way for future smart grid developments. This project follows the deployment of a similar optical network by Nokia Shanghai Bell in Hebei, which serves 100 million customers.
 
The Nokia 1830 PSS-32 platform is at the core of the SGCC optical transport network. The 1830 photonic service switch portfolio consists of platforms optimised for varying optical network deployment environments ranging from interconnecting data centres to scaling large metro, regional and long-haul optical networks efficiently. Each platform leverages common software, hardware, management and control to offer seamless operations across the portfolio.
 
"The new OTN network can provide better technology support for communications, deliver higher level of security and reliability for the power grid, and raise operational efficiency, while improving the business environment to help us deliver better services to our customers,” said Zhang Huijian, vice-general manager of SGCC Tianjin Electric Information & Communication. “We are pleased to be working with Nokia, which has advanced optical and IP technologies and provides high-quality and professional services to support us in this project."
 
The PSS-32 also provides intelligent and reliable network control and restoration through distributed GMPLS and centralised SDN control options for improved network capacity, efficiency, reliability and service deployment velocity. This will enable SGCC to deliver high availability services rapidly, reduce network operating costs and extend network lifecycles.
 
"We are very happy to be working again with SGCC to improve its core network, this time in Beijing and Tianjin,” said Jin Jian, executive vice president at Nokia Shanghai Bell. “The new network will not only meet its capacity needs but will also improve efficiency and support a wide range of technologies that will be required as it make its electrical grid smarter.