Efficient integration of EV s with windpower production

Transcription

1 Efficient integration of EV s with windpower production IEA-RETD RETRANS Workshop Paris January 28 Anders Bavnhøj Hansen Senior Consultant, Ms.EE, Strategic Planning Energinet.dk abh@energinet.dk Efficient integration of EV's with Windpower Production / ABH 1

2 Efficient integration of EV s with windpower production Analysis of a power system with 5% windpower and 3% EV s (of the light vehicle fleet) Issues investigated: Feeding the windpower into the EV s Efficient use of power infrastructure/net (distribution) Ancillary services from the EV s A need for intelligent integration! Power System EV / ABH Efficient integration of EV's with Windpower Production 2

3 Different concepts for EV integration analysed Model 1: Simple charging (worst case) 3 25 Elforbrug 225 DKV Forbrug (MW) % EV simpel ladning Model 2: Day-ahead marked integration - Optimized to day-ahead market and intraday (24 hour) Model 3: System integrated EV Forbrug (MW) : 4: 8: 12: 16: 2: El-forbrug DKV % EV optimeret ladning 1 5 : 4: 8: 12: 16: 2: - Day-ahead and intraday market - Ancillary services - Optimization to grid situation (capacity) - Delivery of power to network (V2G) / ABH Efficient integration of EV's with Windpower Production 3

4 Forbrug-Vind (MW Vest DK) Charging model impact on needed power demand (Demand minus windpower production) Residual produktion (Forbrug-vind) ved forskellige modeller for systemindpasning af el-forbrug 45 til transport Durationcurve for a year Highdemandand low windpower: Potential risk for power unadequacy Residual elforbrug uden virkemiddel_dk1 Elprod residual EV model 1 Elprod residual EV model 2 Elprod residual EV model 3 Low demand and high windpower Potential need for stop of windpower / ABH Efficient integration of EV's with Windpower Production y Intelligent charging has a high impact on the demand for peak load capacity Forbrug (MW) Forbrug (MW) Elforbrug 225 DKV 2% EV simpel ladning : 4: 8: 12: 16: 2: El-forbrug DKV 225 2% EV optimeret ladning : 4: 8: 12: 16: 2:

5 EV charging impact on efficient use of windpower Need Overløb for down (MW) reg (MW) Kritisk eloverløb A high wind scenario 225 Hours with negative spot prices Reference no EV s Kritisk eloverløb_dk1_mw Kritisk el-overløb EV model 1 Kritisk el-overløb EV model 2 Kritisk el-overløb EV model 3 EV charging model 1 EV charging model 2 EV charging model 3 Fo rb ru g ( MW) Fo rb ru g ( MW) Elforbrug 225 DKV % EV simpel ladning 1 5 : 4: 8: 12: 16: 2: El-forbrug DKV % EV optimeret ladning 1 5 : 4: 8: 12: 16: 2: Hours r Intelligent charging has a high impact on the integration of windpower! / ABH Efficient integration of EV's with Windpower Production 5

6 Capacity in the distribution net to EV charging Case study in a typical low voltage distribution net (,4 kv in DK) Energy capacity to 1,4 EV for each house! (more than 2 EV s per house if daytime used as well) However: Below 1% can charge at same time during peakload ( ) => A need for intelligence (smartgrid) [A] Net capacity in a typical,4 kv branch Daytime Free capacity (to EV) Used capacity from home devices / ABH Efficient integration of EV's with Windpower Production 6

7 Ancillery services: Windpower challenges how can we use the EV? Hurricane Demand Windpower shutdown Windpower Hurricane peak The EV can contribute to combat these type of windpower challenges! / ABH Efficient integration of EV's with Windpower Production 7

8 International standardisation: Joint Working Group V2G CI (Communication Interface) E-mobility use cases, draft proposal, actors definition: Charge Spot Vehicle Owner Vehicle User Clearing House Web- Frontend Communication Controller Vehicle Communication Controller Charge Spot Meter International open standard for Communication is very essential! Safety (plug present etc.) ID (contract information) Grid parameters (phys. limits etc.) Tarif parameters (energy price, local tarif etc.) Grid Operator Electricity Supplier / ABH Efficient integration of EV's with Windpower Production 8

9 Conclusions Grid connected vehicles (PHEV/EV) is a key to an efficient integration of windpower in the transport sector But: An intelligent integration of the electrical vehicle with the power system is needed to obtain an efficient integration with the windpower production International standardization work is a key to successful smart integration A good cooperation between car industry and power sector is needed to obtain an efficient integration / ABH Efficient integration of EV's with Windpower Production 9