1. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project NEMA 5EVSE Submetering WG: Chairman: Ken Brown Program Manager: Andrei Moldoveanu

2. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project ANSI EVSP 2013 identified the following: Gap: Standardization of EV sub-meters. Standards for EV sub-meters, including embedded sub-meters, need to be completed to address performance, security/privacy, access, and data aspects.

3. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project NEMA EVSE Section: 20 members representing a large part of the market The Section started a project to address the ANSI EVSP gap Focus on EVSE embedded meter (EM)

4. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project Developing a guide of requirements responding to two major regulatory inputs:  For public stations: NIST Handbooks 130Method of sales 44Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices;  For residential applications: CPUC Strawman for PEV Submetering Protocol

5. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project The WG started listing similar requirements in related codes, standards and regulations. Includes hardware and communications Identified potential gaps Evaluated what SDO is best addressing them (SAE, ANSI C12, NEMA, NIST, NEC, UL, etc.).

6. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project Results:  ANSI C12 can be only partially used. EVSEs are self contained products with metering functions  Embedded metering required a substantive review of performance definitions and testing procedures.

7. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project 2 major sections:  Commercial EVSE Applications Commerce  Residential EVSE Applications Non-commerce

8. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project Commercial:  Harmonized with NIST & NCWM  Assisted with type, permitting and regular inspection requirements  Working towards a self-certification program to help W&M inspectors

9. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project Non-commercial:  Harmonized with the SAE Communication and portions of ANSI C12  Input from the CPUC  Optional accuracy levels  Proposed field testing similar to Commerce derived test

10. The Association of Electrical and Medical Imaging Equipment Manufacturers EVSE Embedded Metering Guide Project Residential  NEMA is writing the requirements in the Guide, then plans get the document approved as an ANSI standard for metrological performance testing with contribution from stakeholders  Using the ANSI standard NEMA intends to create a stringent self-certification program for the metrological performance