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Alert! Flickering lights or overheating appliances may be signs of a neutral fault. Learn how to stay safe.

Follow our communication at www.herrforsnat.fi/en/announcements/storm-hannes-has-caused-widespread-power-outages-in-our-electricity-distribution-area/ or on our Facebook site.

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Change in the structure of the Herrfors Group

Katternö Kraft Oy Ab was merged into Oy Perhonjoki Ab on 31 December 2025. In connection with the merger, the company name of Oy Perhonjoki Ab was changed to Katternö Kraft Oy Ab.

The merger is part of the Herrfors Group’s objective to simplify and clarify the group structure. Both Katternö Kraft and Perhonjoki are production resource companies without their own personnel, and they are now being combined into a single company.

Following the change, the Herrfors Group consists of the parent company Herrfors and the subsidiaries Herrfors Nät-Verkko, Katternö Kraft, and Härjeåns Kraft operating in Sweden. The new structure improves transparency, enhances decision-making efficiency, and increases cost-effectiveness.

Further information:
Managing Director Roger Holm
Phone: +358 40 585 2495