Wide area synchronous grids

world's largest single electric network

The IPS/UPS (), also widely known as the Russian grid, is a wide area synchronous transmission grid, the Russian Unified Power System (UPS; ) and the Integrated Power System (IPS; ) portion of the network being the national networks of Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Mongolia, Tajikistan and Uzbekistan.

international power transmission system centred in Quebec, Canada

three-phase electric power grid of large scale that operates at a synchronized frequency and is electrically tied together during normal system conditions