Storage

The Trade and Storage segment uses for its own needs the working capacities of the Wierzchowice, Husów, Strachocina, Swarzów and Brzeźnica underground gas storage facilities as well as the Mogilno and Kosakowo underground cavern facilities. A part of the working capacity of the Mogilno facility, which was made available to Gaz-System. The capacities of gas storage facilities are managed by GSP. GSP conducts activities in two principal areas:

• regulated activities comprising the provision of gaseous fuel storage services at storage facilities owned by PGNiG as well as operation of the Mogilno and Kosakowo underground gas storage caverns;
• non-regulated activities comprising the provision of services related to design, construction and extension of underground gas storage facilities.

Short-term peak fluctuations in demand for natural gas are balanced by supplies from the Mogilno and Kosakowo facilities, where gas is stored in worked-out salt caverns. The capacities of the Wierzchowice, Husów, Strachocina, Swarzów and Brzeźnica facilities are used to balance out changes in demand for natural gas in the summer and winter seasons, to meet the obligations under take-or-pay import contracts, to ensure the continuity and security of natural gas supplies and to meet the obligations under gas supply contracts with customers. GSP as the storage system operator, additionally provides storage services are provided under standard storage service agreements (SSSA).

GSP’s services are provided using the following Storage Facilities (SF) and Groups of Storage Facilities (GSF):

• Kawerna GSF (comprising the Mogilno CUGSF and Kosakowo CUGSF, located in worked-out salt caverns);
• Sanok GSF (comprising the Husów UGSF, Strachocina UGSF, Swarzów UGSF and Brzeźnica UGSF, located in partly depleted gas reservoirs);
• Wierzchowice UGSF.

In the reporting year 2016, GSP offered the following gas fuel storage services:

• packaged services and stand-alone services;
• provided on a firm or interruptible basis;
• long-term services and short-term services and single-day services (injection or withdrawal capacity for 1–24 hours, on an interruptible basis);
• extension/reduction of the scope of services provided.