| 2) Reasons for developing this tool:
Presently, battery costs and lifetime are the two major roadblocks preventing plug-in hybrids from being commercialized. Automobile giants have invested millions into research and development of the battery technology for these vehicles.
Though, there have been many studies and reports published recently related to PHEVs, no solid tool has been developed to assess their impact on the grid at the zonal level. From the utility standpoint, it is important that they know if the present infrastructure can withstand proliferation of the PHEVs. Hence, this tool is an attempt to identify critical zones in the National Grid-USA service territories based on current battery trends and technology.
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