Select an auction type

Auction is defined in EC regulation 1031/2010. It is hidden auction, where bidders place price bids and volumes. After sorting all bids by price and bid time, price is evaluated by the lowest bid with volume that fits the auction volume. Every successfull participant pays the same price.
Auction is similar to the Carbon auction with the difference that the bidders pays the price they have ordered.
(English auction,Dutch auction)- If bidder would place a bid in 5 minutes before end of the auction, auction end time moves 5 minutes after time of last bid.
Standard auction, but time of auction end does not move.
(Sealed first-price auction) - Visible is a call out price, but none of the bid prices.
(Sealed bid second price auction) - Visible is a call out price, but none of the bid prices. Winner of the auction pays second best price.
Standard auction, but auction creator can choose to go on also with other bidders (not only the best) if they accept it.
Auction at fixed time and place. Commodity Exchange Bratislava will hold managed auctions only for special occasions, or if the auction value will overcome 10 million €.