Did you know vehicle manufacturers have announced over 100 electric vehicle models are to be introduced by 2024? This presentation was given at the Southeastern Distribution Apparatus School in Auburn, AL and covers Electric Vehicle Service Equipment (EVSE) and the testing of Electric Vehicle stations. This presentation covers types of EVSEs, market growth, regulatory environment and type approval and testing.
To subject Electric Meters to non-nominal conditions more similar to what meters would experience in the field as opposed to the nominal operating conditions typically used when testing meter accuracy in a shop environment.
This presentation discusses the importance of testing meters and the best practices and test equipment to do so. This presentation was given at MEUA Meter School. 03.03.20
This presentation was given at MEUA Meter School and gives an introduction to meter testing and discusses why we test, how we test, the types of meter tests, what to do with test data and more. 03/03/20
This presentation was given at MEUA Meter School and gives attendees an introduction to meter testing. Topics covered include: why do we test; how do we test; field testing; complaint testing; general meter testing requirements; new meter testing programs; return to service testing; in-service testing; statistical test plans; tracking meter records, and more! 03/03.20
This presentation discusses the differences between self-contained and transformer or instrument rated meter sites; transformer rated meter forms; test switches and CTs; meter accuracy testing in the field; checking the health of your CTs and PTs; and Site Verification. This presentation was given at the MEUA Meter School. 03/03/20
Understand the basics of site verification, from its importance to installation verifications. TESCO's Rob Reese goes over what you need to know about site verification and detailed testing theory and equipment.
This presentation was given at the PREA Meter School and gives an overview of self-contained metering, including why we test, how we test, the different types of meter tests, what to do with the data, and more. 03/10/20.
To subject Electric Meters to non-nominal conditions more similar to what meters would experience in the field as opposed to the nominal operating conditions typically used when testing meter accuracy in a shop environment.
This presentation discusses the importance of testing meters and the best practices and test equipment to do so. This presentation was given at MEUA Meter School. 03.03.20
This presentation was given at MEUA Meter School and gives an introduction to meter testing and discusses why we test, how we test, the types of meter tests, what to do with test data and more. 03/03/20
This presentation was given at MEUA Meter School and gives attendees an introduction to meter testing. Topics covered include: why do we test; how do we test; field testing; complaint testing; general meter testing requirements; new meter testing programs; return to service testing; in-service testing; statistical test plans; tracking meter records, and more! 03/03.20
This presentation discusses the differences between self-contained and transformer or instrument rated meter sites; transformer rated meter forms; test switches and CTs; meter accuracy testing in the field; checking the health of your CTs and PTs; and Site Verification. This presentation was given at the MEUA Meter School. 03/03/20
Understand the basics of site verification, from its importance to installation verifications. TESCO's Rob Reese goes over what you need to know about site verification and detailed testing theory and equipment.
This presentation was given at the PREA Meter School and gives an overview of self-contained metering, including why we test, how we test, the different types of meter tests, what to do with the data, and more. 03/10/20.
This presentation was given during the 2022 Southeastern Meter School in Auburn, AL. Understand the need and best practices for instrument transformer testing in an AMI world, including why and how to test, and what range of tests and checks to perform in the shop and in the field.
Learn the differences between self-contained and transformer or instrument rated meter sites, test switches and CTs, Blondel’s Theorem, meter accuracy testing, site verification, and more! This presentation was given at MEUA Meter School. 03.03.20
This presentation covers differences between self-contained and instrument or transformer rated sites; transformer rated meter forms; test switches and CTs; Blondel's Theorem; meter accuracy testing; checking the health of your CTs and PTs; and site verification (and not just meter testing). This presentation was given at the PREA Meter School. 03/10/20.
Part II also includes admittance and demag testing and uses more advanced equipment to test the meter. See live results from today’s newest test equipment.
This presentation was given at the PREA Meter School and gives an overview of AMI including an overview of the technologies, the benefits, how AMI is changing the industry, and what the future looks like. 03/10/20.
Four quadrant metering can be used to understand individually or collectively:
Real Power consumed by the end user
Apparent Power delivered by the utility
Real Power delivered to the utility by an end user’s generation source
Apparent Power generated by the end user’s generation source
Having these measurements allows for the calculation of Reactive Power, VA and VARS as well as providing kWh for billing purposes.
This presentation was given at the PREA Meter School and gives an introduction to transformer rated metering including meter forms, test switches, CTs, Blondel's Theorem, site verification and more. 03/10/20
This presentation is an overview of the ANSI C12 Standards that pertain to electric metering. This presentation was given at the PREA Meter School. 03/10/20.
The objective of this presentation is to understand the need and best practices for meter and instrument transformer testing in an AMI World including: acceptance and functional testing during and after AMI, Certification, Accuracy testing in the shop and field, Blondel's theorem and why this matters to us in metering, Site Verification and not just meter testing, Instrument Transformer Testing (in shop and in field), and AMI meter population management.
In this presentation, you will learn the basics - differences between self contained and transformer or instrument rated meter sites, transformer rated meter forms, test switches and CT's, meter accuracy testing in the field, checking the health of your CT's and PT's, and site verification
This presentation was given with LUCELEC at the CARILEC CEO & Leadership Conference and covers system loss and what to do to reduce it; why transformer rated metering is important; site verification and not just meter testing; and management systems and utilizing AMI data to control and reduce billing errors.
Calmet Ltd. produces sophisticated testing equipment for Energy Meter and Power Quality Analyzers testing. There are both: single and three phase sources and high accuracy reference energy meters. Portable working standards enables testing on site energy meters and current transformers.
Why test on site? The utility wants to receive full payment for the services it provides. The customer wants to be billed fairly to get the lowest bill possible. This set of infographics is to facilitate the understanding of the need to test electricity meters and practically show how testing should be done. Intended for technicians, engineers, students, utilities staff and all interested in reliable energy measurement. Many definitions and examples are simplified to get clear way of reliable test results obtaining. Although the author tried to avoid errors, they can probably be found in the content, hence any comments are welcomed.
Discover the differences between transformer-rated and self-contained metering sites and discuss why we test, how we test, the types of meter tests, what to do with the data from these tests, and more. A must-see presentation for any meter tech or supervisor.
This presentation goes over the different types of EVSEs, their market growth, regulatory environment, and standard approvals and testing. Presented at NC Meter School 2022.
This presentation was given during the 2022 Southeastern Meter School in Auburn, AL. Understand the need and best practices for instrument transformer testing in an AMI world, including why and how to test, and what range of tests and checks to perform in the shop and in the field.
Learn the differences between self-contained and transformer or instrument rated meter sites, test switches and CTs, Blondel’s Theorem, meter accuracy testing, site verification, and more! This presentation was given at MEUA Meter School. 03.03.20
This presentation covers differences between self-contained and instrument or transformer rated sites; transformer rated meter forms; test switches and CTs; Blondel's Theorem; meter accuracy testing; checking the health of your CTs and PTs; and site verification (and not just meter testing). This presentation was given at the PREA Meter School. 03/10/20.
Part II also includes admittance and demag testing and uses more advanced equipment to test the meter. See live results from today’s newest test equipment.
This presentation was given at the PREA Meter School and gives an overview of AMI including an overview of the technologies, the benefits, how AMI is changing the industry, and what the future looks like. 03/10/20.
Four quadrant metering can be used to understand individually or collectively:
Real Power consumed by the end user
Apparent Power delivered by the utility
Real Power delivered to the utility by an end user’s generation source
Apparent Power generated by the end user’s generation source
Having these measurements allows for the calculation of Reactive Power, VA and VARS as well as providing kWh for billing purposes.
This presentation was given at the PREA Meter School and gives an introduction to transformer rated metering including meter forms, test switches, CTs, Blondel's Theorem, site verification and more. 03/10/20
This presentation is an overview of the ANSI C12 Standards that pertain to electric metering. This presentation was given at the PREA Meter School. 03/10/20.
The objective of this presentation is to understand the need and best practices for meter and instrument transformer testing in an AMI World including: acceptance and functional testing during and after AMI, Certification, Accuracy testing in the shop and field, Blondel's theorem and why this matters to us in metering, Site Verification and not just meter testing, Instrument Transformer Testing (in shop and in field), and AMI meter population management.
In this presentation, you will learn the basics - differences between self contained and transformer or instrument rated meter sites, transformer rated meter forms, test switches and CT's, meter accuracy testing in the field, checking the health of your CT's and PT's, and site verification
This presentation was given with LUCELEC at the CARILEC CEO & Leadership Conference and covers system loss and what to do to reduce it; why transformer rated metering is important; site verification and not just meter testing; and management systems and utilizing AMI data to control and reduce billing errors.
Calmet Ltd. produces sophisticated testing equipment for Energy Meter and Power Quality Analyzers testing. There are both: single and three phase sources and high accuracy reference energy meters. Portable working standards enables testing on site energy meters and current transformers.
Why test on site? The utility wants to receive full payment for the services it provides. The customer wants to be billed fairly to get the lowest bill possible. This set of infographics is to facilitate the understanding of the need to test electricity meters and practically show how testing should be done. Intended for technicians, engineers, students, utilities staff and all interested in reliable energy measurement. Many definitions and examples are simplified to get clear way of reliable test results obtaining. Although the author tried to avoid errors, they can probably be found in the content, hence any comments are welcomed.
Discover the differences between transformer-rated and self-contained metering sites and discuss why we test, how we test, the types of meter tests, what to do with the data from these tests, and more. A must-see presentation for any meter tech or supervisor.
This presentation goes over the different types of EVSEs, their market growth, regulatory environment, and standard approvals and testing. Presented at NC Meter School 2022.
In this presentation you will learn the types of Electric Vehicle Service Equipment (EVSE), market growth, regulatory environment, and type approval and testing. This presentation was given by Bill Hardy at EEI's Spring Transmission, Distribution, and Mutual Assistance Conference.
This presentation introduces you to the electric vehicle market. It discusses EVSE (electric vehicle service equipment) basics, market growth, regulations, Handbook 44 Requirements, and real world testing of EVSE. 06/27/2019
This presentation introduces you to the electric vehicle market. It discusses EVSE (electric vehicle service equipment) basics, market growth, regulations, Handbook 44 Requirements, and real world testing of EVSE. 06/25/2019
This presentation introduces you to the electric vehicle market. It discusses EVSE (electric vehicle service equipment) basics, Handbook 44 Requirements, and real world testing of EVSE.
This presentation covers Electric Vehicle Service Equipment (EVSE). From the basics, to the market, standards, and trends, this presentation covers it all.
Qualify for EV Charging Grants and Incentives with NO FEES!Proterra Inc
Most EV Charging Equipment Incentives require reporting. This unusually means they have sign contracts, pay monthly service fees with an expensive EV Charging network! Not anymore! Telefonix and eGauge has a solution. Also they seem to push dual charger installation. This is not necessarily good for all applciations.
Now Enough we Require Carbon Free and Silent Road TransportationMahesh Chandra Manav
We all has to think Seriously to use of Electric Vehicle which help our Environment Carbon Free and Silent Road Transportation Systems.
Say No Fuel /Gas Operated Vehicles
Indian Govt is Promoting Buyers and Offering Subsidy for those who are Manufacturing , Buying Electric Vehicles and Establishing Electric Vehicle Charging Infrastructure.
Power , DHI , MBBL2019 , ARAI , Central and State Govt Introduce EV Policy and Standard Guide Line to be follow .
Now Power Distribution Companies and many other govt PSU's started Installing EV Charging Station in Major Part of City as per Advisory in City Limit 3KM Prefatory and Highway 25KM EV Charging Infra should be install.
We all has to support best cause and good intention Efforts by Govt of India.
Electric Safety is very much important while installing EV Infra .
Higly Profitable Business
This presentation is very useful for EV Vehicle Manufacturer 2W,3W,Cars and Public Transportation(Bus) and Charging Infra Project Handling EPC Companies.
Voltage Power Optimisation facts and fiction. Why it works, what it works on, where it doesn't work, differences between types of technology and how to select a supplier.
Battery Operated Electric Vehicle and Charging Infra with Electrical Safety
Carbon Free and Silent Road Transportation Systems.
(Know your Safety First and Avoid Accident).
These all Vehicle require Charging Starting from Home , Offices and Public Places
Our National Policy on EV is already Documented and Circulate by Central and States with declaration as State EV Policy.
Important Note : Slow Charging/Domestic Charging use of Electrical Plug should not be with Common Line it will be too Dangerous and cause of Accident because Minimum for Charging Vehicle Require 16Amps to 70 Amps while Charging AC .
Any short Circuit reason from Vehicle or any Equipment which we connected in our Home can be Damage wise versa.
Our Vehicle Battery is Mostly Lithium Base Composition ION , Titanium, Cobalt , Graphite all are heavy explosive and Minimum 2KG to 60 KG depend on Vehicles.
Chargers are Available AC Charging Slow , AC Charging Fast DC Charging Slow , DC Charging Fast Power Consumption will be 3KW-300KW with Two Charging Point .
AC Power input can be 220Volts up to 1200Volts and for big Infra Substation 11kV/33KV to be install and Transformer Power Supply 440V to 1200V .
Very Dangerous to Common Man awareness is the only way for Handling such big Charging Infra.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...
EV Charging Stations
1. 1
10/02/2012 Slide 1
EV Charging
Stations
Prepared by Tom Lawton, TESCO
The Eastern Specialty Company
For Southeastern Distribution Apparatus School
Module 200
Tuesday, November 9, 2021, 3-4 p.m.
4. 4
• J1772 AC Level 2
▪ Home and Commercial Installation
▪ 240 Volts at up to 80 Amps (30A most common)
♦ Home 30A, Commercial 30A, 50A, 75A
▪ Maximum Power Delivery ( 19.2 kW )
♦ Mostly vehicle limited to 7.2kW
▪ Typical time to charge
♦ Pluggable Hybrid ( 0.5 – 1.5 hours, 0% to 90%)
♦ EV 80 Mile Range (1.5 – 4 hours, 20% to 90%)
♦ EV200 Mile Range ( 3.2 – 10 hours, 20% to 90%)
▪ 21 miles per hour of charge @ 30A
▪ If you drive <160mi/day you can recharge overnight.
AC EVSE STANDARDS
4
5. 5
• J1772 AC Level 2
▪ Over 85% of
commercial EVSEs
are AC Level 2
▪ All current EV/PEV in
US can use this type
though some (Tesla)
need adapters
▪ Stations cost $5K to
$8K per port
including installation
AC EVSE STANDARDS
5
6. 6
J1772 AC Level 2 Public Stations
6
2019
Sites:
19,216
2020
Sites:
30,145
4/2021
Sites:
43,132
Number of sites, not ports. A site typically has many ports.
7. 7
• Standards evolving rapidly
▪ Combined Charging System
♦ CCS1 SAE J1772 North America
♦ CCS2 Europe
▪ CHadeMO (Only Nissan and Mitsubishi)
▪ Tesla V1
▪ Tesla V2/V3 (New in 2019)
▪ Chaoji (China, Japan, India – successor to CHadeMO
and GB/T
▪ >100kW is considered “high end” (400V Systems)
▪ First US 350kW units installed Dec 10, 2018 (800V)
DC EVSE STANDARDS
7
8. 8
• Deployment is growing rapidly in US
▪ Biden proposes adding 400K stations by 2025
• But slowly compared to Europe, China and
Japan
• Total PUBLIC chargers installed
▪ AC Level 1 1180
▪ AC Level 2 43,132 locations
▪ DC Rapid 6,028 locations
♦ Tesla 1,126 locations
♦ CHadeMO 4,390 locations
♦ J1772 4,333 locations
DC EVSE STANDARDS
8
9. 9
J1772 DC Public Stations
9
2019
Sites:
2,042
2020
Sites:
3,489
4/2021
Sites:
4,333
Number of sites, not ports. A site typically has many ports.
10. 10
CHadeMO DC Public Stations
10
2019
Sites:
2,348
2020
Sites:
3,640
4/2021
Sites:
4,390
Number of sites, not ports. A site typically has many ports.
11. 11
Tesla DC Public Stations
11
2019
Sites:
644
2020
Sites:
1,039
Number of sites, not ports. A site typically has many ports.
4/2020
Sites:
1,126
12. 12
DC EVSE STANDARDS
• Market Direction
▪ DC Generation 1 ( less than 150kW )
♦ Nominal 400-500 VDC
♦ Up to 300 A max
♦ All current EV’s except one
▪ DC Generation 2 ( up to 400 kW )
♦ Nominal 800 VDC (1000VDC max)
♦ Up to 350A typ, 500 A max
♦ Multiple vehicles announced for
2022
♦ Expected to be the norm by 2025
12
17. 17
The EV Market
17
Ford announced during its fourth-quarter
earnings report that it will invest $22
billion in electric vehicles and $7 billion in
autonomous vehicles through 2025.
18. 18
The EV Market
18
• Hyundai Unveils EV Platform, Will
Have 23 Global Electric Vehicles by
2025
• Toyota Details Six New EV Models
Launching for 2020–2025
• BMW raises target for EV sales, plans
new electric-focused platform
20. 20
• Major charging system networks
▪ Blink
▪ Chargepoint
▪ Electrify America
▪ EvGo
▪ Tesla
▪ Volta
CHARGING NETWORKS
20
21. 21
US TOTAL ENERGY CONSUMPTION
21
8.26E6 GWh
3.75E6 GWh
7.12E6 GWh
10.87E6 GWh
22. 22
US ELECTRIC ENERGY
CONSUMPTION
22
Americans drove 3.23 trillion
miles in 2019. If this was all
done in electric vehicles
getting 3 mi/kWh, then we
would need 1.1E6 GWh of
energy just to charge cars.
3.75E6 GWh
30% of total US capacity just to charge Cars!!!
Average household uses 10.6 MWh/yr.
Charging their cars would take 8.8 MWh/yr.
27. 27
• Sales of electricity as a vehicle fuel are regulated
by the Department of Commerce
• Like all sales of all things based on quantity sold,
EVSE sales are regulated by NIST Handbooks 130
and 44.
• HB130 establishes that all sales of electricity as a
vehicle fuel must be based on the quantity
delivered.
• HB44 sets performance requirements for devices
(Electric Vehicle Service Equipment) used to
dispense electricity for sale.
REGULATORY BACKGROUND
27
28. 28
• A.1. General. – This code applies to
devices, accessories, and systems used for the
measurement of electricity dispensed in
vehicle fuel applications wherein a quantity
determination or statement of measure is
used wholly or partially as a basis for sale or
upon which a charge for service is based.
HB44 APPLICABILITY
28
29. 29
• Exceptions-This code does not apply to:
▪ The use of any measure or measuring device owned,
maintained, and used by a public utility or municipality
only in connection with measuring electricity subject to
the authority having jurisdiction such as the Public Utilities
Commission.
▪ Electric Vehicle Supply Equipment used solely for
dispensing electrical energy in connection with operations
in which the amount dispensed does not affect customer
charges or compensation.
▪ The wholesale delivery of electricity.
HB44 APPLICABILITY
29
30. 30
• Use Cases – NOT COVERED
▪ A store provides a free EVSE in its parking lot
▪ A paid parking lot provides EVSEs for which there is no
charge based on the amount of energy delivered
▪ Tesla provides free charging services for some owners
▪ An organization charges a monthly fee for unlimited use of
its network of EVSEs.
HB44 APPLICABILITY
30
31. 31
• Use Cases –COVERED
▪ ANY transaction which is based on the amount of
energy delivered
▪ Examples
♦ A network of charge stations charges a monthly fee to
belong AND a fee based on the amount of energy used
♦ A EVSE charges for the amount of energy delivered
♦ A parking lot charges for parking and EVSEs located in it
also charge for the amount of energy delivered if used
HB44 APPLICABILITY
31
32. 32
• Type Approval
▪ All EVSE used in commercial transactions (subject
to HB44) must pass type approval by an NTEP
testing laboratory.
♦ NTEP is National Type Evaluation Program which is
created by NIST and run by the National Conference of
Weights and Measures.
♦ For EVSE, the NTEP lab is the CTEP lab of the California
Department of Weights and Measures
♦ EVSE type approvals for AC EVSE are being done now.
♦ Three devices have been approved.
HB44 REQUIREMENTS
32
33. 33
• Metrological Requirements of HB44
▪ S.3.1. Metrological Components. – An EVSE measuring system shall be
designed and constructed so that metrological components are
adequately protected from environmental conditions likely to be
detrimental to accuracy.
▪ S.3.5. Temperature Range for System Components. – EVSEs shall be
accurate and correct over the temperature range of – 40 °C to + 85 °C
(− 40 °F to 185 °F).
▪ S.8. Minimum Measured Quantity (MMQ). – The minimum measured
quantity shall satisfy the conditions of use of the measuring system as
follows:
♦ (a) Measuring systems shall have a minimum measured quantity not
exceeding 2.5 MJ or 0.5 kWh.
HB44 REQUIREMENTS
33
34. 34
• Accuracy Tests
▪ N.1. No Load Test. – A no load test may be conducted on an EVSE
measuring system by applying rated voltage to the system under test
and no load applied.
▪ N.2. Starting Load Test. – A system starting load test maybe conducted
by applying rated voltage and 0.5-ampere load.
▪ N.5.2. Accuracy Testing. – The testing methodology compares the
total energy delivered in a transaction and the total cost charged as
displayed/reported by the EVSE with that measured by the
measurement standard.
♦ Light Load Test. - ≤ 15% of maximum available charge current
♦ Full Load Test. - ≥ 85% of maximum available charge current
HB44 REQUIREMENTS
34
35. 35
• Commissioning
▪ All EVSE used in commercial transactions (subject
to HB44) must have their performance verified
after installation and before any sale can occur.
▪ EVSE performance must be reverified on a
periodic basis as long as they are in service.
▪ EVSE are treated as fuel dispensers just like a gas
pump. They are inspected and “sealed” by
state/county Department of Weights and
Measures personnel.
HB44 REQUIREMENTS
35
36. 36
PL200 200 AC Level 1 & 2 to 64 Amps
PL400 AC Level 1 & 2 to 64 Amps, DC Level 2 to 32 Amps
FIRST GENERATION TEST SOLUTIONS
36
38. 38
Second Generation EVSE Tester
38
• Universal Testing Capabilities
▪ AC Single Phase (CCS1, CCS2, GB/T, Tesla)
▪ AC 3-Phase (CCS2, GB/T)
▪ DC to 200A at 1000V (Higher when connectors are
available)
♦ CCS1 (J1772 DUO)
♦ CCS2
♦ CHadeMO
♦ GB/T
♦ Tesla
▪ Use programmable load to 17kW or EV for higher DC
loads
39. 39
• Automated Operation
▪ Create Test sequences that completely automate process
▪ Testing is then a simple one click process
▪ Why?
Industry Needs
39
40. 40
• None of this means anything if we can not certify and provide
traceability for these tests.
• Two general approaches – New York approach and California
Approach
• Traceability through a National Lab to an International Standard
▪ This requires a DC “Standard”
▪ Fortunately DC Power = VA
♦ Need a certifiable voltage source and a certified current source and the
ability to measure down to the appropriate levels for both Volts and Amps,
then have a National Lab do the same test on the lab equipment
• ANSI has also spent a great deal of time creating a new Standard
to cover DC Metering – ANSI C12.32 ready for re-balloting this
year. This will be the DC version of C12.1 for AC metering.
Certification and Traceability
40
41. 41
Questions and Discussion
Tom Lawton
President
tom.lawton@tescometering.com
TESCO – The Eastern Specialty Company
Bristol, PA
215-228-0500
This presentation can also be found under Meter Conferences and
Schools on the TESCO website: www.tescometering.com
ISO 9001:2015 Certified Quality Company
ISO 17025:2017 Accredited Laboratory