intelligentutility 2/18/2010
To V2G or not to V2G
So, to the vision. Kempton, at the University of Delaware, has coupled the nation’s electric utility system and the light vehicle fleet as “two massive but separate energy conversion systems.” Nearly 10,000 utility generators produce more than 600 gigawatts (GW). More than 176 million cars and light trucks produce more than 19,500 GWm (m stands for mechanical energy). That’s 24 times the capacity of the electric generation system.
As the automotive world explores electric vehicles (EVs) and renewable energy sources are tied into the grid, in Kempton’s words, “the economics and management of energy and power in the light vehicle and electric systems make their convergence compelling in the early decades of the 21st century.”
EVs can provide electricity storage and quick-response generation to the grid, electricity will complement and displace gasoline in the fleet and automated controls will optimize the transfer of energy between the two giant systems, given their different but compatible needs based on time of day.
In a paper titled, “Vehicle-to-grid power implementation,” in The Journal of Power Sources, Kempton calculated that one-fourth of the U.S. fleet produces mechanical energy equivalent to the entire output of the nation’s electricity generation. “Capital costs to tap vehicle electricity are one to two magnitudes lower than building power plants,” Kempton wrote.
Tens of Millions of Power Plants ... on wheels
by John Cooper on Thursday February 18, 2010
no comments
0 Comments
Leave a Comment
Search
Recent Posts
Tags
AEP AMI Oncor AMI Accenture Allegheny Power Boulder CPUC California China Climate Change Coal Plants Colorado DG DOE Delaware Demand Response Energy Efficiency Energy Storage Feed In Tariff Hawaii Houston LADWP Microgrid NARUC NREL ONCOR PEV PGE Pennsylvania RPS SCE SDGE SGDG Smart Grid Solar PV Storage Xcel Energy Zigbee