NET4GAS Role of Gas TSO. Zdeněk Haloda Head of IT, NET4GAS

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1 NET4GAS Role of Gas TSO Zdeněk Haloda Head of IT, NET4GAS

2 Basic Info NET4GAS, holds an exclusive gas Transmission System Operator licence in the Czech Republic ENTSO-G member User of PRISMA auction platform User of GSA auction platform Services provided by NET4GAS: International transit of natural gas across the Czech Republic Domestic transmission of natural gas to partners in the Czech Republic Services for gas infrastructure operators: Maintenance, Dispatching Annually, the company transports about 45 billion m 3 of natural gas of which around 19 % (8,5 billion m 3 ) is for domestic consumption

3 History of NET4GAS 1970 Signature of inter-government of Russia, Eastern Germany and Czechoslovakia on gas transmission 1971 Transit gas pipeline, national enterprise Transgas, branch enterprise 2001 Transgas, share corporation 2005 RWE Transgas NET, s.r.o., legal unbundling of TSO from gas trading activities 2010 NET4GAS, s. r. o., rebranding, continuing separation of transmission from trading activities 2013 NET4GAS, s. r. o., new company owner - consortium of Allianz Capital Partners and OMERS.

4 NET4GAS as a Safe and Reliable Partner in Gas Transport The transit system High pressure pipelines PN bar 4 Compressor stations 6 border transfer stations to DE, SK, PL National transit system High pressure pipelines PN bar Supplies to approx. 90 national transit stations Technical data Compressor power MW. Total length pipelines - 3,800 km Pipelines of DN

5 Strategic Turn Table in Central Europe GAZELLE pipeline completed in 2013 Reinforced security of natural gas supplies Raising the strategic importance of the Czech Republic Diversification of gas supplies EEPR project for Reverse flow completed in 2011 Transmission system is fully reversible East-West flows (Russian gas) West-East flows (Nordic gas) 8 Physical Gas Storage facilities (3 virtual) MND Gas Storage - Uhřice Innogy Gas Storage - Lobodice, Tvrdonice, Štramberk, Háje, Dolní Dunajovice, Třanovice Moravia Gas Storage - Dambořice

6 Commercial Dispatching

7 From Capacity Booking to Daily Imbalances Framework agreement Needs to be signed with every partner before Capacity Booking. Guaranties and Rating Capacity Booking According to auction calendar Capacity platforms trygas system Nomination & Renomination 24/7 process OTE trygas system Matching (Adjacent TSOs, SSOs) 24/7 process Adjacent TSO online communication trygas System Balancing Calculation of daily imbalances done by OTE Unused Flexibility market

8 Capacity Booking Process Capacity Booking Capacity of Border Transit Stations Since implementation of CAM Network Code in 10/2015 all capacities of Border transit stations are booked in auctions via International Capacity Platforms PRISMA Capacity Platform German and Slovak borders GSA Capacity Platform Polish Border Capacity of Underground Gas Storages and Directly connected customers Capacities are booked via request in internal system trygas

9 Close cooperation with gas market operator Nomination & Renomination Balancing OTE, a.s., the Czech electricity and gas market operator, (OTE) is a joint stock company established in OTE provides comprehensive services to individual electricity and gas market players. OTE has been the market operator on the gas market since 2010 including operation of day-ahead gas market and intraday gas market. NET4GAS Measurements and allocations Nomination Deviations Balancing actions OTE

10 Related Responsibilities of Commercial Dispatching Secondary Market Secondary market organized by NET4GAS Network data publication Company website Transparency platform Entsog reporting REMIT reporting Gas Transfers (Capacity agreements) Non-standard contracts Deals settled for technological operations and losses Deals settled for balancing actions Trading system

11 N4G as other EU TSO reports to Transparency platform organized by ENTSO-G Capacities Nomination Re-nomination Allocation Physical flows GCV (Gross Calorific Value) Wobbe index

12 Technical Dispatching

13 Technical Dispatching of NET4GAS Dispatching of NET4GAS is responsible for daily operation of N4G gas grid Dispatching of NET4GAS is standalone unit There are no pan-european dispatching centers as with Electricity Used for Emergency situations in Czech republic Real-time data from SCADA transmission system 24/7 operation time

14 Operational Management & Planning Operational management Secures and manages the operation Sets up and configures technical parameters of the system Operation scheduling and evaluation Cooperation on scheduling of shutdowns, maintenance Forecasting of transportation and utilization Performance evaluation, logging Balancing Flexibility services by accumulation of TSO Accumulation prediction Balancing actions

15 Balancing & Accumulation Gas transmission network is not necessary to be balanced in every moment because of Linepack The certain part of accumulation is provided to cover imbalances of the shippers free of charge Shipper can buy or sell unused flexibility on the market on daily basis NET4GAS is obliged to maintain accumulation within safety limits Outside of these limits NET4GAS is allowed to buy/sell gas on within-day or day-ahead basis balancing actions to ensure grid is balanced Therefore NET4GAS has to forecast utilization of the system and also the Linepack (accumulation) Prediction and balancing software is based on Lancelot platform implemented in 2015 by Unicorn Systems

16 Thank you for your attention!