DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids EURELECTRIC Annual Convention and Conference Vilnius, 7 June 2016 Marcus Merkel, EWE NETZ GmbH EWE NETZ grid area is decades ahead of Energiewende targets on RES in Germany Development targets of the German government = Energiewende targets on RES Share of power generated based on Renewables or conventional Sources Renewables Conventional 2014 By 2050 28 % EWE NETZ: RES infeed provides 75% of consumption, in some month 94% Share of power generated based on Renewables or conventional Sources Renweables Conventional 63 % 75 % 94 % 2012 2014 Dez 2013 Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids - EWE NETZ GmbH M. Merkel 2 1
Welcome to the evolving power system: efficient, small scale optimized, decentralized, based on fluctuating renewable energy sources Cold Storage Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibilityin Minigrids - EWE NETZ GmbH M. Merkel 3 In Germany, more than 95% of RES capacity is connected to distribution grids LV = 230-400V 1,150,000km RES curtailment Distribution grids MV = 10/20/30kV 510,000km RES curtailment HV = 110kV 95,000km redispatch Transmission grids EHV = 220/380kV 35,000km not smart RES generation capacity connected not smart 45% not smart smart, if (120 GW): 25% 25% 5% Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids - EWE NETZ GmbH M. Merkel 4 2
... DSO task: ensure efficient local power system planning&development...load matters! Wind today 2030 PV Sources: EWE/NETZ / DENA (2012) / BNetzA (2015) Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibilityin Minigrids - EWE NETZ GmbH M. Merkel 5 The power system game changers of yesterday and tomorrow... ENERGIEWENDE DIGITIZATION... = KICK start towards decentralization, decarbonisation, smart systems & digitization... = INCUBATOR of the Energy Transition Energiewende Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids - EWE NETZ GmbH M. Merkel 6 3
To ensure the smart transition we need to enhance the DSO toolbox! Smart grids promise a significant cost reduction potential. Based on available technologies the DSO must be enabled to develop an efficient system infrastructure. Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids - EWE NETZ GmbH M. Merkel 7 Methodology, toolbox approach & execution at EWE NETZ Analysis status quo identification of potential solutions development rating matrix simulation of representative grids evaluation network clustering Kriterium A Kriterium B Kriterium C Technologie A Technologie B Technologie C Conclusion 1: The best technical solution depends on local aspects (voltage level, urban framework, RES distribution) Conclusion 2: A smart control of the grid requires a sufficient share of measurement equipment especially at the medium voltage level Grid needs to become Smart Grid Ready Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids - EWE NETZ GmbH M. Merkel 8 4
Emerging smart technologies, concepts and projects at EWE NETZ Cuxhaven etelligence Borkum (STATCOM) Enera Jever 5%-Approach Oldendorf Compensator plant Bremervörde LOM-Approach Marienhafe LOM-Approach Altenoythe green2store Oldenburg Bremervörde controller Tostedt Wide area control Sögel Werpeloh ions Werpeloh ines Klein Dörgen Controller Lähden controller Controllable transformer PowerFactory Extension of fibre Smart GIS 2.0 Smart control center Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibilityin Minigrids - EWE NETZ GmbH M. Merkel 9 Ex.: EWE proposal 2012 based on simulation: Grid hosting capacity for RES on DSO level could be doubled by using 5% DG-flexibility Targets of EWE NETZ: Fast & secure connection/ integration of RES on DSO level Cost reduction on DSO level by reducing the need for network expansion Utilize flexibility of RES to optimize grid development Grid hosting capacity in % 350 300 250 200 150 Dynamic curtailment of max. 5%! 100 0 2 4 6 8 10 12 14 16 Dynamic RES-curtailment in % of annual generated energy EWE Proposal 2012 Dynamic 5% approach of EWE NETZ according to RES Generation would offer the opportunity to double the grid hosting capacity on DSO level Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids - EWE NETZ GmbH M. Merkel 10 5
Verification of the simulation is done: Practical realization in 1-year field test Medium voltage minigrid with 11 RES generators Generation follows control within the limits of the grid Information flow Controller: BTC Grid Agent Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibilityin Minigrids - EWE NETZ GmbH M. Merkel 11 Conclusion from applying the solution to the EWE MV-minigrid technical feasibility of the 5%-approach has been proofed successfully DER flexibility is valuable as local system service prototype of the Grid Agent in combination with an unusual strong wind situation lead to 6.9% of curtailed energy by further improvements (and less stronger wind!) 5% should be possible the new German Energy Law will include our 5%-approach as 3%- approach Within our upcoming Project enera we will implement the Version 2.0 of the Grid Agent in 10 further MV-grids It works! We can upscale the solution as smart (mini) grid operator Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibilityin Minigrids - EWE NETZ GmbH M. Merkel 12 6
Emerging smart technologies, concepts and projects at EWE NETZ Cuxhaven etelligence Oldendorf Jever 5%-Approach Compensator plant Borkum (STATCOM) Enera Bremervörde LOM-Approach Marienhafe LOM-Approach Bremervörde Altenoythe green2store Oldenburg controller Tostedt Wide area control Sögel Werpeloh ions Werpeloh ines Klein Dörgen Controller Lähden controller Controllable transformer PowerFactory Extension of fibre Smart GIS 2.0 Smart control center Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibilityin Minigrids - EWE NETZ GmbH M. Merkel 13 enera: Modelregion Countries of Aurich, Friesland & Wittmund Independent city of Emden Area of 2.665 km 2 390.000 inhabitants 200.000 households 1,75 GW installed renewable energy generation capacity 1,50 GW generated wind power 170% renewable energy The modelregion is a large renewable power plant 7
enera: Partner Network Feel free to follow the enera project on facebook or twitter! Thank you for your attention! Marcus Merkel MBA EWE NETZ GmbH Cloppenburger Str. 302 26133 Oldenburg T.: +49 (0) 441 48081152 marcus.merkel@ewe-netz.de www.ewe-netz.de Eurlectric - Vilnius 2016 DSO Toolbox for 100% RES Usage of DER Flexibility in Minigrids - EWE NETZ GmbH M. Merkel 16 8