A mishap at a major power could mean the Russian Government will increase power prices by more than its earlier proposed 5%.

An accident in August at a Russian hydro-power plant killed more than 70 people after a turbine room flooded, resulting in major damage costing billions.

Now government sources have told news service Reuters that in 2010 regulated electricity prices for industrial users could be augmented by more than the initially proposed 5%.

Sources said a hike of 6% to 7% was proposed before the Economy Ministry last week but a final judgement has not been made.

According to sources the dam mishap at Siberia-based Sayano-Shushenskaya power station triggered the changes in tariffs.

Sources also revealed that power firms want electricity prices to be increased by more than 7%.