Lack of coal boosts Slovenia’s power import dependency to 75%
18 Oct 2022
Thermal power plant TEŠ was shut down upon the recommendation of
Slovenia’s transmission system operator ELES to save coal for the winter. At
the same time, nuclear power plant Krško is in overhaul, so the country must cover
75% of its electricity needs from imports.
Slovenia’s electric power
system is currently in a bad shape, though officials claim there is no threat
to stability. An unfavorable scenario became reality – while nuclear power plant Krško is
undergoing a regular month-long overhaul until November 2, the lack of coal
from the Premogovnik Velenje mine prompted
a shutdown of the Termoelektrarna Šoštanj (TEŠ) power
station.
The two power plants normally
account for two thirds of domestic electricity production or more. Slovenia is
now covering 75% of its consumption from imports. However, the share went to as
high as 90% today.
As the supply of coal is low,
it should be saved for the winter, when electricity imports are expected to be
much more expensive
Units 5 and 6, with 847 MW in
total, were taken off the grid at the recommendation of the country’s
transmission system operator ELES. Chief Executive Officer Aleksander Mervar
said there is no need yet to introduce emergency measures as hydropower plants
and recent network upgrades are
maintaining stability.
In case of outages in the
European system or if the situation worsens in another way, Slovenia’s only
coal-fired power plant can be turned back on, but otherwise it can stay idle
until November 30, he stressed. Mervar pointed out that market prices of
electricity have fallen, adding that some capacities can temporarily run on
fuel oil. He also warned that the system could collapse if people start to
massively use electricity for heating purposes.
Hydropower plants and recent
network upgrades are maintaining stability
CEO of TEŠ Mitja Tašler said
coal should be saved for the winter, when electricity import costs are expected
to be much higher. There is currently “enough water and wind in Slovenia, which
means that there is also enough electricity,” he asserted, even though there
are no wind power plants in Slovenia.
TEŠ has been testing the use of
coal imported from Indonesia.
The mine isn’t delivering the
agreed quantities of coal after a rock burst on October 12. Premogovnik Velenje
and TEŠ are run by state-owned Holding Slovenske elektrarne or HSE.