The Option product allows the Storage User to fix the storage capacity that has been reserved in auction during a given time period.
Each auction for option contract have a different conditions a there are different fees for non-fixed reserved storage capacity.
Benefits
Low Costs of Unallocated Capacity
Input via Nomination System GS CZ
input / accept gas is possible any time
Sale of Surplus Gas
Securing of Gas Filling Levels
meeting legislative requirements
Gas Transfer from Expiring Contracts
free of charge
FIST
Final price is based on SW spreads
WBS
Price is determined based on SW spreads (only at the day selected by Storage User)
OPTION
Flexibility of decision after booking capacity in auction