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The most common cause of power outages is weather. Lightning strikes or strong winds can cause trees to fall over power lines.
Photo: Iiro Kerkelä
In Nivara, the grid of network service company Elenia suffered several power outages at the turn of July and August.
The first blackout in the series occurred on July 27, and there were three other blackouts in about a week. The blackouts occurred in the early morning and lasted for a few minutes.
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