Honda announced it has joined a demonstration project for experimental vehicle-to-grid (V2G) technology.
The project is aimed at providing a potentially valuable energy storage resource to the nation’s electrical grid while providing for more cost-effective ownership of plug-in electric vehicles.
Honda said the technology builds off of research conducted by the University of Delaware and now supported by NRG Energy, Inc. Honda explained NRG and the University of Delaware, through their eV2g joint venture, came online early in 2013 with the world’s first revenue-generating vehicle-to-grid project, demonstrating the controls, regulatory requirements, and market participation rules for selling energy storage from vehicles into the PJM Interconnection Regulation Market.
Honda is supplying an Accord Plug-In Hybrid with added V2G capabilities to the University’s Science, Technology and Advanced Research (STAR) Campus to jointly investigate the potential of this technology to benefit the electrical grid, vehicle owners and society.
Using smart grid technology, the V2G system in this project is able to monitor the status of the grid to determine whether the grid requires additional power sources that can respond rapidly, or the grid requires power demands that can absorb transitional power supply.
Honda said such a system has the potential to reduce or eliminate the fluctuation of the grid, which can occur more frequently when renewable energy sources are introduced to the grid. Electric vehicle owners potentially benefit from supporting a more stable power grid, which can lead to reduced utility costs for the vehicle owner, according to Honda.
The Honda Accord Plug-In Hybrid demonstration vehicle is equipped with a bi-directional on-board charger, which allows the vehicle propulsion battery to both charge from and discharge to the electrical grid. With an additional communication device, the vehicle receives signals from a grid operator via a charging station, and controls charge and discharge in accordance with the signals.
When electric power is requested by the grid, the vehicle will discharge power from its battery; when the grid power supply exceeds demand, the vehicle proactively charges its battery.
“The participation of global automakers like Honda will help demonstrate and refine the technology,” said Willett Kempton, professor in the College of Earth, Ocean, and Environment and Research Director of the University of Delaware’s Center for Carbon-Free Power Integration. “The University of Delaware has been developing the technology so that vehicle batteries can be used not only for mobility but also for grid services. It is a big step toward a future with widespread availability of the technology to have Honda join our demonstration with their V2G-capable car.”