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ANSI releases version 2 of EV Standardization Roadmap

The American National Standards Institute (ANSI) released Version 2.0 of the Standardization Roadmap for Electric Vehicles, developed by the Institute’s Electric Vehicles Standards Panel (EVSP).

The document tracks progress to implement recommendations made in the roadmap version 1.0, released in April 2012 (earlier post), and identifies additional areas where there is a perceived need for standardization work to help facilitate the safe, mass deployment of electric vehicles and charging infrastructure in the United States.

Never has there been a more auspicious time for EVs than the present. Nonetheless, while the times appear especially promising, EVs do face significant challenges to widespread adoption. In order for EVs to be broadly successful, the following challenges must be successfully addressed:

  • Safety: While inherently neither more nor less safe than conventional internal combustion engine vehicles, EVs do have unique safety complexities and risks which must be understood and accounted for as part of the vehicle life cycle.

  • Affordability: Cost is a critical issue which must be continually addressed in order for EVs to become widely accepted and broadly penetrate the consumer market.

  • Interoperability: The ability to recharge anywhere in a secure fashion will greatly enhance EV driver flexibility and user convenience.

  • Performance: The ability to extend the driving range of EVs on a single battery charge without the need for range extension is largely due to energy storage capabilities (batteries) and a function of technology development.

  • Environmental Impact: The demand from both regulators and consumers for “greener” vehicles (i.e., more fuel-efficient, less reliant on fossil fuels) must be met.

Standards, code provisions, and regulations, as well as conformance and training programs, cross over all these areas and are a critical enabler of the large-scale introduction of EVs and the permanent establishment of a broad, domestic EV and infrastructure industry and support services environment.

—EV Standardization Roadmap v 2

Highlights of the revision include:

  • The closing of four partial gaps on power quality, DC charging levels, the safety of electric vehicle supply equipment (EVSE), and EV coupler safety, where work to publish a new standard or a revision to an existing standard was still in progress at the time the original roadmap was released last year and has now been completed.

  • The identification of eight new gaps relating to standardization work in the following areas: electromagnetic compatibility issues related to EV charging; the functionality and measurement characteristics of EV sub-meters included those embedded in EVSE or EVs; coordination of EV sub-metering activities; cybersecurity and data privacy; telematics smart grid communications; electrical energy stranded in an inoperable rechargeable energy storage system; and workforce training related to charging station permitting and college and university programs.

  • Substantial modifications to fifteen of the gaps identified in the roadmap version 1.0.

  • An indication of the status of progress on all outstanding gaps, including those where new standardization activity was initiated in response to roadmap version 1.0.

  • Significantly expanded text in a number of areas, in particular the infrastructure communications sections and appendix A on EV charging actors and communications.

  • Information on domestic and international coordination efforts since publication of the original roadmap.

ANSI also updated the ANSI EVSP Roadmap Standards Compendium, a searchable spreadsheet of standards that relate to the issues identified in the roadmap.

Developed by representatives from more than 100 private- and public-sector organizations, the Standardization Roadmap aspires to maximize coordination among those developing standards for electric vehicles—primarily plug-in electric vehicles (both battery-powered all-electric vehicles and plug-in hybrids)—and the charging infrastructure needed to support them.

The publication considers issues that are integral to consumer adoption of EVs such as safety, performance, and interoperability. It describes relevant standards, codes, and regulations that already exist or that are in development, and gaps where new or revised standards would prove useful.

Gaps are prioritized as needing to be addressed in the next two years (near-term), two to five years (mid-term), or more than five years (long-term). Standards developing organizations and others that may be able to take up the recommendations are noted.

Conformance and training programs are also considered, including for those who provide support services for EVs and the infrastructure.



For one thing both the SAE and CHADEMO charging standards are at risk of becoming obsolete in year 2013 because of their low rate of charge.

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