Four to five thousand homes there and in Häme lost power over the Christmas weekend as heavy snow knocked trees onto high-tension wires.
Most are customers of the Vattenfall company, which is owned by the Swedish state.
The utility reports that this has been a very bad year for blackouts in its areas in Finland, with four or five major storms. Meanwhile its competitor Fortum reports a more or less normal year.
Both firms have more than 60,000 kilometres of electric lines, enough to go around the world one and a half times.