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Public auctions for electricity from TEŠ 2026

The results of the public auctions for the sale of electricity produced at the Šoštanj Thermal Power Plant and public auction for the purchase of emission allowances for the needs of the operation of TEŠ in 2026

Public auction No. EE-D2/2026 for the sale of electricity produced by TEŠ d.o.o.

In accordance with the third paragraph of Article 9 and the second paragraph of Article 36 of the Act on Transitional Financing of the Accelerated and Fair Exit from Coal (Official Gazette of the Republic of Slovenia, No. 109/2024 of 20/12/2024), Borzen, the electricity market operator d.o.o., within which the support centre operates, conducted the public auction No. EE-D2/2026 for the sale of electricity produced at the Šoštanj Thermal Power Plant.  

Conduct of the auction

Borzen conducted the auction on Wednesday, September 17, 2025, in collaboration with BSP through the long-term trading platform. The auction was attended by 7 companies, 5 domestic and 2 foreign.

Auction product

The auction product was base load energy in selected months in 2026, as defined in Announcement of public auction,  in the total amount of 43.800 MWh (Product 1) and 87.600 MWh (Product 2).  

Auction results
Auction rules

The auction was conducted in accordance with the General Rules for Public Auctions for the Sale of Electricity Produced by TEŠ.

Public auction No. CO2-D2/2026 for the purchase of emission allowances for TEŠ d.o.o.

In accordance with the third paragraph of Article 9 and the second paragraph of Article 36 of the Act on Transitional Financing of the Accelerated and Fair Exit from Coal (Official Gazette of the Republic of Slovenia, No. 109/2024 of 20 December 2024), Borzen, the operator of the electricity market, d.o.o., conducted the public auction No. CO2-D2/2026  for the purchase of emission allowances for the needs of the operation of Termoelektrarna Šoštanj d.o.o.

Conduct of the auction

Borzen conducted the auction on Wednesday, September 17, 2025, in collaboration with BSP through a long-term trading platform. The auction was attended by 6 companies, 2 domestic and 4 foreign.

Auction product

The auction product was the purchase of emission allowances according to a predetermined monthly schedule, defined in Announcement of public auction No. CO2-D2/2026. The total quantity of  emission allowances  was 72.000 EUA for Product 1 and 270.000 EUA for Product 2.

Auction results
Auction rules

The auction was conducted in accordance with the General Rules for Public Auctions for the Purchase of Emission Allowances for the Operation of TEŠ.


Previous public auctions

First public auction for the sale of electricity produced by TEŠ for 2026

In accordance with the third paragraph of Article 9 and the second paragraph of Article 36 of the Act on Transitional Financing of the Accelerated and Fair Exit from Coal (Official Gazette of the Republic of Slovenia, No. 109/2024 of 20.12.2024) ), Borzen, the electricity market operator d.o.o., within which the Center for RES/CHP Support operates, conducted the first public auction for the sale of electricity produced at the Šoštanj Thermal Power Plant, for 2026.

Conduct of the auction

Borzen conducted the auction on Wednesday, May 28, 2025, in collaboration with BSP through the long-term trading platform. The auction was attended by 9 companies, 6 domestic and 3 foreign.

Auction product

The auction product was base load energy in form of closed contracts in selected months in 2026, as shown in the table below, in the total amount of 174.720 MWh

TEŠ_D1_2026

jan.26

feb.26

mar.26

apr.26 – sep.26

okt.26

nov.26

dec.26

Total

Total

(quantity in MW)

40

40

40

0

40

40

40

 

Total

(quantity in MWh)

29.760

26.880

29.760

0

29.760

  28.800    

29.760

174.720

The product was divided into 8 lots. A detailed presentation of the auction product is available in Chapter 4 of the Rules for the first public auction for the sale of electricity produced by the company Termoelektrarna Šoštanj d.o.o. for 2026.

Auction results

First public auction for the purchase of emission allowances for TEŠ for 2026

In accordance with the third paragraph of Article 9 and the second paragraph of Article 36 of the Act on Transitional Financing of the Accelerated and Fair Exit from Coal (Official Gazette of the Republic of Slovenia, No. 109/2024 of 20.12.2024) ), Borzen, the electricity market operator d.o.o., within which the Center for RES/CHP Support operates, conducted the first public auction for the purchase of emission allowances for TEŠ for 2026.

Conduct of the auction

Borzen conducted the auction on Wednesday, May 28, 2025, in collaboration with BSP through a long-term trading platform. The auction was attended by 3 companies, 2 domestic and 1 foreign.

Auction product

The auction product was the purchase of emission allowances valid during the fourth period of the European Trading Scheme (ETS), for monthly quantities as shown in the table below, in a total (indicative) quantity of 176.000 EUAs.

CO2_D1_2026

jan.26

feb.26

mar.26

apr.26

may 26 – okt.26

nov.26

dec.26

jan.27

Total 

1 lot  (quantity in EUAs)  

3.750 

3.400 

3.750 

3.750 

3.600 

3.750 

22.000 

Total (quantity in EUAs)  

30.000 

27.200 

30.000 

30.000 

28.800 

30.000 

176.000 

The product was divided into 8 lots. A detailed presentation of the auction product is available in Chapter 4 of the Rules for the first public auction for the purchase of emission allowances for TEŠ for 2026.

 

For additional information on the results of the auctions, please contact us by calling +386 1 620 76 57 or by e-mail at avkcije@borzen.si