Three days of blizzards inflicted “the worst devastation in living memory” in the small Alpine country, local media said.
Downed trees and electric poles cut power to 50,000 homes.
Some areas around Postojna, 40km (24 miles) south of the capital, have been without electricity for four days and the armed forces have been brought in to help restore power.
By Monday, about 120,000 households in the small nation of two million people were still waiting for power to be restored and 40% of schools were closed.
Ice six inches thick
In and around the city of Postojna, people used axes in attempts to free their cars from ice 15 cm (6 inches) thick.
With railways at a standstill and some petrol stations and even bank ATM machines frozen solid, the country faced millions of euros of losses. Slovenia’s busiest port, Koper, ground to a halt.
Half of Slovenia’s forests damaged
Roughly half of Slovenia’s forests, 500,000 hectares (1.2 million acres), has been damaged, authorities have estimated.
The environment agency warned that more snow was on its way.
An added risk is flooding once the ice melts, experts warned.
The harsh weather also hit neighboring Croatia and Serbia, where hundreds of people have been rescued from the snow.
Thanks to Robert Stom and Marc Morano for these links