Commercialized storage solutions for enhanced grid operation

Transcription

1 Commercialized storage solutions for enhanced grid operation Dr. Andreas Luxa Principal Expert, Low and Medium Voltage Division, Amsterdam

2 The power grid is in transformation: Increasingly complex source/generation management Simple source load Complex storage load source small source storage small load many microgrids Page 2

3 Balancing the natural variability of renewable sources needs controlled generation in-feed

4 Balancing the natural variability of renewable sources through controlled Biomass generation in-feed Balancing naturals Wind Bio-mass Solar Page 4

5 Microgrids are complex arrangements Utilizing smart generation and load management Wind Biomass Photovoltaic Storage Hydropower MV Wind Inverter MV PV Inverter MV Battery Inverter Energy Manager Point of Common Coupling Managed Load LV PV Inverter Micro CHP LV Battery Inverter Diesel GenSet Page 5 Managed Load

6 Renewable integration

7 Key challenges drive renewable integration Trends Customer challenges Renewable generation in distribution grids Increasing electrical loads in LV distribution grids Overloads of distribution grids due to fluctuating renewable in-feed E.g. share of world renewable generation to triple from 4% to 13% by ) High cost for integration of renewable generation through grid extension Aging and/or weak infrastructure Limited transparency on distribution grid Distribution grids are not designed for bidirectional energy Page 7 Source: 1) Energy Trends Study 2) U.S CPI-weighted dollars 3) Brazil Regulator, Energy Trends Study

8 Renewable Integration current portfolio of IC SG Integration of distributed and renewable generation Microgrid Integrated solutions Grid-specific enterprise IT Operational IT Information & Communication Automation Field equipment Smart Grid Services Business analytics, IT integration Distribution management system Smart Grid diagnostics kit Support of standard communication protocols (e.g. IEC /104) RTUs for integration of power generation & loads and for controllable LV transformer Power quality devices, controllable LV transformers, communication devices Consulting for cost efficient grid extension, installation, commissioning Smart Grid diagnostics kit: consistent and continuous measurement delivers transparency in the distribution grid overloads and power quality Plug & play configuration: install the package without difficult configurations various communication solutions secure VPN via GSM Significant reduction of investment cost required for integration of renewables and increase in efficiency of distribution grid.

9 Renewable integration and Microgrids call for innovation to ensure grid stability Large-scale renewable Challenge: grid stability Decentralized generation Power Overload Unpredictable production Wind farms Underload Load Consumers turn into producers Photovoltaic Large-scale power plants Solutions Time Mixture between self-supply and in-feed Flexible generation technology (e. g. Peaker ) Netzausbau Grid extension Intelligent grids and devices Energy storage Page 9

10 Energy storage helps balance the system voltage U Generation > Load Charging ~ U Load > Generation t A modern power supply needs innovation Energy storage is an intelligent solution ~ Discharging seconds... minutes Stabilizing a distribution system with renewable generation through battery storage applications t Page 10

11 Energy storage supports grid operation and grid services, and is a green solution Providing active and reactive power Balancing grid loading Compensating for peak power Contributing to ancillary power provision ~ = Page 11

12 Seconds Minutes Hours Days/months SIESTORAGE is positioned at mid-size power ranges and for frequent charging/discharging capabilities Time in use H 2 /methane storage (stationary) Li-ion NaS batteries Redox flow batteries SIESTORAGE diabatic adiabatic CAES Water-pumped storage Technology Chemical storage Electrochemical storage Dual film capacitor Flywheel energy storage Supercon-ductor coil Mechanical storage Electrical storage Maturity Commercial application Market launch 1 kw 10 kw 100 kw 1 MW 10 MW 100 MW 1,000 MW Demonstration Source: Study by DNK/WEC, Energie für Deutschland 2011, Bloomberg Energy Storage Technologies, Q CAES Compressed Air Energy Storage Page 12

13 SIESTORAGE is a modular energy storage concept Four modules one intelligent solution = SIPLINK Power Electronics Li-Ion Battery Modules MV Switchgear Converter Transformer SIEMENS ENERGY STORAGE SIESTORAGE Page 13

14 SIESTORAGE energy storage cabinet Featuring a modular design concept plug-in unit for up to 8 battery modules plug-in unit for up to 8 battery modules battery module battery controls Energy storage cabinet with up to 16 battery modules 24 kwh/144 kwp SIPLINK inverter Fully equipped energy storage cabinet including power electronics Page 14

15 SIESTORAGE

16 SIESTORAGE: Fits into a standard container easy on-site installation SIESTORAGE Typical ratings: 500 kwh 3 MVA peak Output: 230V... 52kV Performance: 1MVA 30min Page 16

17 SIESTORAGE advantages of the modular system Advantages Turnkey solution Low-capacity degradation until the end of the life cycle High safety for personnel and facilities through battery modules Black-start capability through self-commutated inverter Closing the gap to Microgrid integration Page 17

18 SIESTORAGE advantages of the modular system Connection to the medium-voltage grid of Italy's largest energy distributor, enel Performance: 1 MVA Capacity: 500 kwh Application: Frequency regulation Integration of photovoltaic power plants and an e-vehicle charging station Black-start capability Commissioning in February 2012 Page 18

19 SIESTORAGE offers a large variety of applications enabling efficiency improvements Microgrids Peak-load management Page 19

20 Summary

21 Microgrid and storage solutions for enhanced grid operation Power grid stability and reliability is increasingly challenged by a growing number of microgrids and renewable in-feed SIESTORAGE helps stabilize the power grid through active & reactive peak power injection and smoothening peak power generation it opens a new gateway to flexible load management SIESTORAGE comprises battery inverters and controls, is easy to install, with perfect fit-to-grid features, and black-start capability SIESTORAGE is a scalable turnkey container solution with the option to extend through parallel arrangement SIESTORAGE can ease critical power applications in addition to utility grids at industrial sites, data centers, large infrastructures etc. Page 21

22 Successfully implemented today. Author