At the beginning of the year China put the world's first 1,000 kV UHV transmission system into operation. Transmitting power at over a million volts is just amazing.  Some key facts about the system are:

• nominal voltage 1,000 kV
• maximum voltage 1,100 kV
• 640 km of transmission line
• two substations
• one switching station
• estimated cost US$830 million

If your interested in finding out more the articles below give a good overview of the system and installed equipment.

References

• Technology Focus, IEC Article
• ABB's contribution to the project
• Article form Energize, South Africa, July 2009