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Electricity Ancillary Services in Germany PDF

16 Pages·2017·1.16 MB·English
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Mareike Wolke, 08.11.18, Berlin ELECTRICITY ANCILLARY SERVICES IN GERMANY CURRENT STATUS AND DEVELOPMENT AGENDA German Energy Transition and Actual Challenges for Electricity Grids Current Debates in Electricity Ancillary Services Outlook on Future Developments 2 ELECTRICITY ANCILLARY SERVICES IN GERMANY MAREIKE WOLKE, 08.11.18 GERMAN ENERGY TRANSITION AND ACTUAL CHALLENGES FOR ELECTRICITY GRIDS German Energy Transition so far Reduction of CO emissions Share in electricity consumption 2017 2 Nuclear Water 11% 3% 1990: 1.251 Mio. t 1400 11440000 PV 10% 1200 11220000 2000: 1.043 Mio. t 95% of (= -16%) Volatile RES installed capacity 36% Wind connected to 1000 2017: 905 Mio11.00 00t00 22001177:: 990055 MMiioo.. tt 26% distribution Conventional grid ä ää 50% 2 800 22 880000 O OO C CC t . t . t . 2017: 905 Mio. t (= -27%) o 600 oo 660000 iM iMiM 400 440000 Until 2017 -27% CO2-emissions compared to 1990 36% share of RES in energy consumption 2017 200 220000 SAIDI (System Average Interruption Duration 0 00 Index): 15 min/a in 2017 (21 min/a in 2006) 1990 2000 2010 2020 119999002030 22000000 220011002040 22002200 220033002050 22004400 22005500 Historisch HHiissttoorriisscchh 4 ELECTRICITY ANCILLARY SERVICES IN GERMANY MAREIKE WOLKE, 08.11.18 Actual Challenges for Electricity Grids Grid operators use congestion management almost every day Increased controllability also in lower voltage Increasing Decreasing Sudden levels needed Generation shift distances for operation hours changes in to distribution electricity for conv. power power flow Cost for network and level transport plants direction system security 1,1 billion € in 2015 Delayed grid expansions due to 0,9 billion € in 2016 fast RES development and acceptance problems 1,4 billion € in 2017 CO -free RES generation 2 Need for action regarding the development of a regulatory framework is reduced instead of suitable for grid friendly flexibility usage using (cross sectoral) flexibilities 5 ELECTRICITY ANCILLARY SERVICES IN GERMANY MAREIKE WOLKE, 08.11.18 CURRENT DEBATES IN ELECTRICITY ANCILLARY SERVICES ELECTRICITY ANCILLARY SERVICES Electricity Ancillary Services are services (or preliminary services) provided by all parties involved in order to maintain the quality of the electricity supply. Curtailment Redispatch/ Congestion Intantaneous Balancing power from Management Reserve power plants and Operation Planning storage facilities Reserve Power Plants Flexible loads Data Exchange/ Monitoring/ System Frequency Controlling/ Coordination Control Control System Voltage blackstartcapability Restoration Control CompensationSystems islandingcapability Switching measures to Reactive power supply by restrict the fault power plants and network EAS resources Coordinationacross PrelimaryServices networklevels forEAS Frequency measures to ensure stability 7 ELECTRICITY ANCILLARY SERVICES IN GERMANY MAREIKE WOLKE, 08.11.18 REDISPATCH AND CONGESTION MANAGEMENT 16 TWh: corresponds to annual consumption of 4.5 million households 1.600 600 18 k 1.4 billion€ s) row ni y 1.400 1.1 billion€ hyad 500 15 hW) tt 1.200 c( T eN rofiruceSR1.000 0.9 billion€ tapsidsnoitn 400 12 ytitn( stsoC lau metsyS dUE 468000000 eRevretnI 230000 69 ygraeunQ nn 100 3 E na 200 A 0 0 0 2013 2014 2015 2016 2017 2013 2014 2015 2016 Quelle: MonitoringberichtBNetzA Need for Change: Measures to Increase Utilization of Existing Networks Efficient integration of RES and CHP plants in Redispatch The Redispatchpotential of conventional plants > 10 MW in the 110 kV grid is already being used by TSOs in coordination with the DSO. The integration of RES and CHP plants from 100 kW in the Redispatch is planned 8 ELECTRICITY ANCILLARY SERVICES IN GERMANY MAREIKE WOLKE, 08.11.18 CONTROLLING AND MONITORING Need for Change: Measures to Increase Controlling and Monitoring Further development of the smart meter for 1.7 MILLION KM better observability and improvement of overall DISTRIBUTION NETWORK concept with regard to the controllability of flexibilities Enhanced connectivity of SINTEG research projects and other innovation TSO Standardized interfaces and coordination processes to avoid conflicts between DSO market and system-related use of decentralized power plants and flexible CongestionManagement loads FrequencyControl 9 ELECTRICITY ANCILLARY SERVICES IN GERMANY MAREIKE WOLKE, 08.11.18 REACTIVE POWER What’s the discussion about? Increasing reactive power demand leads to increased costs for providers, but not necessarily for everyone and situation can change over time Question whether it makes sense to oblige all power plants to provide reactive power via fixed rules in the Technical Connection Rules (TCR) Need for Change: Technically and Economically Efficient Provision of Reactive Power Discussion about an economically efficient, non-discriminatory and transparent provision of reactive power 10 ELECTRICITY ANCILLARY SERVICES IN GERMANY MAREIKE WOLKE, 08.11.18

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Mareike Wolke, 08.11.18, Berlin. ELECTRICITY ANCILLARY. SERVICES IN GERMANY Generation shift to distribution level. Sudden changes in.
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