Choosing the Most Suitable Energy Storage Technology 5MW / 5 MWh LiIon-Storage in Schwerin Vienna, 04. November 2015
WEMAG a municipal Utility company with an ecological strategy ecological energy eco power plants ecological mobility energy efficiency energy storage 2
As a modern utility WEMAG has also Experience in construction an operation Battery storage Transformer stations Renewables 3
Characteristic of WEMAG Grid Area in Western Mecklenburg area covered approx. 8,685 sq.km WEMAG 2013 Ø nation-wide 2012 Inhabitants per sq. km 34 229 Sales quantity MWh/km 2 214 1476 Quota of renewable energy 86 % 24,2 % 4
Über 100 % Ökoenergie in unserem Netz Within the grid area of WEMAG, all customers could be supplied with green energy by 2014. This is on the condition that either the consumption and generation of electricity happens simultaneously or the energy could be stored. 100% 115 >120 >140 >150 90% 80% 84 86 70% 60% 50% 40% 49 57 58 59 73 30% 20% 10% 19 22 28 31 35 0% 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 % konventionelle Energien am Netzabsatz % regnerative Energien am Netzabsatz 5
Installed renewable energy 5,000 4,500 4,000 3,500 3,000 2,500 2,000 1,500 1,000 sonstige Biomasse Photovoltaik Wind alte Prognose max: alte Prognose min: Netzstudie MV II min Netzstudie MV II max max. Netzlast 2012 min. Netzlast 2012 Renewables by 2014: 1.111 MW 500 0 Netzlast max min 2005 2006 2007 2008 2009 2010 2010 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 In long term the installed renewables will have 5-10 more power then the maximum local load. 6
Residual loads WEMAG 2005-2014 (sorted) P 7
Residual loads WEMAG 2005-2025 (sorted) P Grid expansion vs. Energy storage 8
Ancillary Services virtualized by Younicos Computer controlled Power Conversion Systems Autonomous operation for frequency reserve Other possible services voltage stability, UPS, power factor correction Technology Center Island grids Laboratories Lithium-Ion-Cells Technology Center Power Converter Systems 10
Criteria for our decision Frequency reserve: Power vs. Work (what capacity is needed) Capex + Opex for 20 Years Experience on installed systems Lithium Ion 1C Sodium Sulfur 1/6 C Redox Flow ¼- ½ C 11
Key facts: WEMAG Battery storage Built with Younicos 5 MW / 5 MWh battery system (Lithium-Ion cells) by Samsung SDI Operates in the German primary regulating energy market Connected to a 20 kv WEMAG transformer station Costs 6.7 milion / Subsidized with 1.32 million First cut of the spade: September 2013 Topping out ceremony: December 2013 Test of operation: Mid 2014 Start of operation September 2014 12
5 MW Lithium-Manganese-Oxid-Battery system design 13
Load Frequency Control and Reserves done by batteries P 50,01 Hz 50,2 Hz 49,8 Hz 49,99 Hz Unload batteries Load batteries 14
What the plant regulary does Frequency Power 15
Power profile (sorted load curve) 2,500 kw 2,000 kw Recorded time: Sept. 14 Sept. 15 Einspeisung Bezug 1,500 kw 1,000 kw 500 kw 0 kw -500 kw -1,000 kw -1,500 kw -2,000 kw -2,500 kw 16
System reliability Tender won, Bid accepted Tender lost, no operations System failure Normal operations maintenance 2014 KW38 KW39 KW40 KW41 KW42 KW43 KW44 KW45 KW46 KW47 KW48 KW49 KW50 KW51 KW52 2015 KW01 KW02 KW03 KW04 KW05 KW06 KW07 KW08 KW09 KW10 KW11 KW12 KW13 KW14 KW15 KW16 KW17 KW18 KW19 KW20 KW21 KW22 KW23 KW24 KW25 KW26 KW27 KW28 KW29 KW30 KW31 KW32 KW33 KW34 KW35 KW36 KW37 KW38 KW39 KW40 KW41 KW42 KW43 KW44 KW45 KW46 KW47 KW48 KW49 KW50 KW51 KW52 22
Many services availabe Primary frequency reserve Frequency restoration Voltage stability Reactive power compensation UPS: Black start capacity Short circuit power 23
Vielen Dank für Ihre Aufmerksamkeit. Jost Broichmann Obotritenring 40 19053 Schwerin Telefon 0385. 755-2275 Tobias.Struck@wemag.com