YANKTON, S.D. (WNAX) – Snow, wind, rain and ice caused extensive damage to the rural electric system of Sioux Valley Energy.

Spokesperson Carrie Vugteveen says they have some preliminary estimates.

Vugteveen says almost half of their customers were in the dark at some point.

Vugteveen says permanent repairs will take some time.

Vugteveen says crews battled slippery conditions and very muddy roads to get to all the damage.