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Impacts of EVs on China Smart Grid. ML Chan, PhD, SVP mlconsultingGrp@gmail.com ML Consulting Group Sunnyvale, CA 94087 www.MLConsultingGrp.com. Outline of Presentation. China’s Smart Grid Policy; how it starts to be grid-centric, and how it evolves into enabler for green technologies
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Impacts of EVs on China Smart Grid ML Chan, PhD, SVP mlconsultingGrp@gmail.com ML Consulting Group Sunnyvale, CA 94087 www.MLConsultingGrp.com
Outline of Presentation • China’s Smart Grid Policy; how it starts to be grid-centric, and how it evolves into enabler for green technologies • Roles of cars in China’s Socio-Economy • Convergence of Smart Grid & EVs; national goals for EV penetration • Status of EVs Penetration; HEVs now, though initially BEVs were the target focus • Infrastructural challenges & customer acceptance force the change in policies
Outline (cont’d) • Integrating EVs creates the usual technical concerns – overloads and infrastructural concerns, but no V2G concerns, no range anxiety since mostly urban local driving, and no voltage fluctuation concerns because no feed to grid • Battery swapping approach rather than the controlled charging scenario, and now HEV focus rather than BEV in the short run • SSCC position being monitored by CSG
Background • May 2009, SGCC issued Strong Smart Grid policy • 3 phases • Phase I (2009-2010): Develop standard guidelines & standards, and conduct pilot projects; develop foundational IT infrastructure • Phase II (2011-2015): synchronized with the 12th 5-year Plan; implement Smart Grid across T, D & Customer sectors • Phase III (2016-2020): enhance and upgrade Smart Grid installations
Status of Strong Smart Grid Implementation • Early 2010, Strong Smart Grid was deemed to be the enabling infrastructure to launch China into the renewable resource future; part of the green economy, the economic engine to drive China’s future • About USD $60B (RMB ¥384B) over the 12-year period for Smart Grid investment; ARRA funds for DOE about USD $35B • China always adheres to her 5-year Plans
EV’s Role in China • Fast growing middle class; owning cars is status symbol; mobility desired • Has become net importer of oil, a national security concern • Urban traffic congestion and carbon emission problems with more cars (e.g., Beijing ~5M cars for a population of ~20M, excluding migrant workers)
Long Historical Vision on EVs • Goal of 100M EVs by 2015 stated by 12th Five-Year Plan; national R&D program started in 8th Five-Year Plan • 2009 started the 10 Cities-1000 Vehicles program; 25 cities participated; 6 major cities even provided <60,000RMB subsidy to private purchases • By August 2011, the Ministry of Industry & Information Technology has listed 27 passenger EVs models & 148 commercial ones • Has established EV standards via SAC TC114/SC27; 50 standards issued, with 36 national, and 14 industry standards; 60 under drafted; standards for EVSE also established
Impacts on EVs on Smart Grid • Similar technical concerns as in the US • Overloading of distribution infrastructure if all synchronized charging; aggressive EV penetration of 34M in 2010 could use 18% of installed generating capacity • Similar to Air Conditioning load increase, since no V2G scenario • PQ concerns on the grid due to charging stations • ICT system challenges to allow for mobile charging; RFID and IT system infrastructure
Impacts of EVs on Grid • Institutional Issues • No V2G because no truly deregulated electricity market; thus no bidrectional flow of electricity concerns • Technical standards for EVSE devices; China is equipped to act quickly • Infrastructural Issues • Build new services at each apartment building for charging • Charging stations geographically distributed
Current State & Trend • About 10K private EVs are on the road; way behind the national target • Price of cars; competitiveness with gas cars • Safety of batteries • Charging station availability • Policy solution • Battery swapping approach advocated by State Grid; being monitored by China South Grid • Re-aligning national funding to promote HEVs (hybrid EVs) in the near term; still strive for EVs in the long term
Conclusions • China has long envisaged the importance of EV as her national policy • Customer acceptance has been slow • Fully cognizant of the impacts of EVs on the grid, and nothing major except for local enclaves in the distribution system, especially in the absence of V2G • HEVs in the near term, and pure EVs in the long term
Thanks! Questions ?