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August 2009

Intelligently Connecting Plug-In Vehicles & the Grid. August 2009. Electric Transportation Arriving Soon. Over 70% of auto makers * are introducing plug-in vehicles *by market share. Establishing a Smart Grid Infrastructure for EVs. Smart Charging:

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August 2009

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  1. Intelligently Connecting Plug-In Vehicles & the Grid August 2009

  2. Electric Transportation Arriving Soon Over 70% of auto makers* are introducing plug-in vehicles *by market share

  3. Establishing a Smart Grid Infrastructure for EVs • Smart Charging: • Manages the one-way flow of energy • Allows drivers to set parameters • Balances grid & driver needs via sophisticated software • Enables adaptive management: • Delay/slow during peak demand • Increase with availability of renewable energy • Plug-In Vehicles • Connecting to the grid in 2010 • Many rollouts call for 240V/L2 wall mounted garage chargers • Adoption likely clustered in neighborhoods • Grid Distribution System • Charging management technologyis required* • Capacity exists for wide EV adoption* • A few EVs, clustered & charging at peak, could impact reliability *National Renewable Energy Laboratory, Pacific Northwest National Laboratory, Electric Power Research Institute

  4. Smart Charging Management Opportunities Load ShiftingTime based management shifts charging behavior intonon-peak periods Demand valleys can be filled by scheduling charging around a central time Renewable Integration Based on a live wind or solar signal, charging can be synchronized with the availability of renewable energy System RegulationFollowing an AGC signal, the charging load can be dynamically increase or reduced according to grid needs. Spinning Reserves The flow of energy can be rapidly slowed or stopped, creating capacity in response to an unexpected power disruption Economic Dispatch Following a real-time price signal allows energy economics to determine charging behavior Load Shaping Following an signal or schedule, charging load can be dynamically shaped according to grid needs Load Shaping Economic Dispatch

  5. Smart charging requires connectivity Smart charging can be highly bandwidth efficient. However: • Many EVs will be sold in areas where the local utility does not operate an AMI data network • Provisioning a location with traditional internet access to support a single EV damages the economics of smart charging • For broad deployment, end users cannot be expected to perform advanced network configuration tasks There is no one right connectivity solution. • Existing premises internet is workable if the system provides a truly zero-configuration experience • Utility AMI networks are workable in areas where they have been deployed • Creative solutions must be found for locations where neither AMI nor premises internet is appropriate

  6. Joby Lafkyjlafky@gridpoint.com

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