IUGS 2025/2026 cycle

On February 06, 2025

Will the minimum bid cost for BCP 5YP be recalculated once a year (before the start of the auction series)?

  • The fee for the five-year booked product (BCP 5YP) for all five storage cycles shall be determined according to the auction results of the relevant capacity product. For the 2025/2026 auction, it shall not be less than 1.7322 EUR/MWh
  • In Auction offer must be used minimum bid cost 1.7322 EUR/MWh with 4 decimals or any bigger value with 2 decimals.

How are stocks transferred to the five-year capacity product and between storage cycles? How is the stock transfer fee applied?

  • A stock transfer fee will be applied if the stock transferred to the BCP 5YP exceeds 50% of the available capacity of BCP 5YP product for that current cycle. This principle applies to all consecutive storage cycles of BCP 5YP products.
  • If stocks are transferred to BCP 1YP, the stock transfer fee will be applied at 100%.
  • Please see calculation example.

How the 10 TWh of 5yBCP be split throughout 5 years? What will be the volume of 5yBCP offered this year and what could be the volume offered next year?

  • In this storage cycle, up to 10 TWh of capacity (not more than 60% of technical capacity) will be offered for booking in the BCP 5 YP auctions, with the remaining capacity being offered in next storage cycles accordingly.
  • In the event that the entire BCP 5YP is sold in previous auctions, anyway 1 TWh will be offered in the BCP 1YP auction on 8 May 2025.

What is the difference between auctions that offer products with tariffs and separately set the auction premium? And for products (BCP 5 YP) for which an auction cost is set?

  • The BCP 5YP auction will be set the auction cost at EUR/MWh per storage cycle, which will be payable for each consecutive storage cycle for 5 cycles. For products with a tariff and a separate auction premium, the tariff is set per storage cycle and the auction result premium in EUR/MWh is applied for the entire lifetime of the product.

Can the minimum bid price for BCP 5YP be changed by Conexus between storage dates of one particular year? Let's say in February one price, but in May already a different one? Or it is set in stone for the whole auction calendar?

  • The minimum bid price per storage cycle shall be fixed and shall be used for all auctions in that storage cycle

If I have both 2023/2025 and 2024/2026 BCP 2 YP products and I will have some inventories under BCP 2YP in the end of storage cycle, then how I should instruct Conexus, what quantities should go for the second storage cycle of 2024/2026 BCP 2 YP product and what volume should go under the stock transfer product?

  • A few days before 1 May 2025, the system user shall send information on how to split stocks between BCP 2YP products booked in different cycles.
  • The system user shall also inform the operator no later than 5 days before the end of the storage cycle of the quantity of stocks that will be transferred to the BCP 5YP at the end of the season.

How will stocks of existing products be transferred at the start of the 2025/2026 storage cycle?

Will the CO2 allowances costs only start in 2027?

Will it be possible for market participant just to transfer Co2 allowances to Conexus to cover that market participant injections?

  • At the moment, this possibility is not foreseen in the rules.

What if the spreads are negative for BCP 5YP product? Will operator pay back then?

  • No, under the terms of the storage rules, in the event of a negative spread, a fixed stock transfer fee 1.00 EUR/MWh will be applied.