TYUMEN, November 23 (RIA Novosti) - Germany's E.ON Russia Power GmbH has increased its stake in OGK-4 from 70.4% to 72.7%, the Russian wholesale power generator announced on Friday.

The German power utility closed a deal in mid-October to acquire a 69.34% stake in OGK-4. A month later, E.ON raised its share to 70.4%.

OGK-4 has a total installed generation capacity of 8,630 MW and incorporates five thermal power plants - one in Western Siberia, one in the Far East, two in Central Russia, and one in the Perm Territory in the Urals.

OGK-4's other shareholder is Russia's state-controlled electricity giant Unified Energy System [RTS: EESR].