A fire broke out at the Tungatinah Power Station on Wednesday night. (Supplied: Tasmania Police)
Investigations are continuing into the cause of a fire that gutted one of Tasmania's hydroelectric power stations.
Authorities say it is not yet safe to enter the Tungatinah Power Station, which supplies 5 per cent of the state's energy, in the Central Highlands.
The Tasmania Fire Service says it will likely take several days to examine the scene.
Authorities have had to use a drone to inspect the inside of a burnt-out hydroelectric power station in Tasmania, as it is still unsafe to enter the building.
The Tasmania Fire Service (TFS) is continuing to investigate the cause of Wednesday night's fire at the Tungatinah Power Station in the Central Highlands.
"At this stage they are still struggling to make the scene safe for the investigators to gain entry," TFS Deputy Chief Officer Matt Lowe told ABC Northern Tasmania on Thursday.
"They're currently utilising a drone to inspect the interior and then make decisions based on where best to gain access.
"As you can appreciate with the wind today, there's a lot of loose debris."
Authorities have not yet been able to enter the building. (ABC News: Jano Gibson)
The Tungatinah Power Station is Tasmania's fifth-largest hydro power station, supplying about 5 per cent of the state's energy.
"So it is a challenging task at the moment, and at this stage it'll be several days of examination of the scene."
The Lyell Highway remains closed between Fourteen Mile Road and Victoria Valley Road, with diversion routes in place.
An overnight fire that gutted one of Tasmania's hydro power stations raises questions about the impact on the state's power network.
Hydro Tasmania said it had not yet been able to assess the site, meaning it could not comment on the condition of the assets or the cost of repairs.
