Compliance Requirements for Energy

Storage Systems in North America

Jim Green

Global Business Manager, Energy Storage

1 Creating a better, safer, more sustainable world where

standards work for people and business

A Global Leader Since 1919 In:

2 Creating a better, safer, more sustainable world where standards work for people and business

Standards

Testing & Certification

Consumer Product Evaluation

• Develops standards for the U.S. and Canada; Over 3,000 standards and codes in 54 technology areas

• 1,300 technical committees; 9,000 engaged, dedicated volunteer members

• Provides standards-based training across a range of industries

• CSA marks appear on billions of qualified products worldwide

• Tests and certifies products for North America and internationally

• Special Inspections and Field Evaluations

• Conducts energy efficiency and performance evaluation services

• Helps streamline the entire product development cycle

• Works closely with manufacturers, importers, distributors and major retailers

39 Offices in 16

Countries including India

The Growing ES Market

3 Creating a better, safer, more sustainable world where standards work for people and business

• Battery based Energy Storage Systems are

a rapidly growing market across 3 main

segments:

– Residential Typically < 10 kWh

– Commercial/Industrial Typically < 500 kWh

– Utility/Community scale Typically > 500 kWh

• Three primary battery types dominate the

market:

– Lithium-ion

– Lead acid

– Flow Batteries Each application and battery

technology have different safety and

compliance challenges

Source: Navigant Research

Codes and Standards for ESS

4 Creating a better, safer, more sustainable world where standards work for people and business

• Market and technology growth is outpacing standard

development and code upgrades

• US and Canadian electric codes are evolving:

– US NEC section 706 added to address ESS

– Canadian CEC Sections 26 & 64 reference batteries for ES

• US Department of Energy is actively supporting

development

– Strategic plan on ESS Safety

– Pacific Northwest National Lab

– Sandia National Lab

The Standards Development Process

5 Creating a better, safer, more sustainable world where standards work for people and business

• Involvement in your local and international

standards development provides

significant benefits

– Have a voice in standard requirements

– Gain early access to draft standards and test

requirements

• The Canadian example

– Canadian Mirror Committee managed by CSA

develops the position for Canada

– Drives international development through IEC

– Canada will ultimately adopt IEC standards ... ...

IEC

Technical Committee IEC TC 120

International

... ... USA

SCC

Canadian Energy Storage

Mirror Committee

CSA

CAN

Canada

Recommended Practices

ASME IEEE

Certification of ES Systems

6 Creating a better, safer, more sustainable world where standards work for people and business

• Each component will bear a

certification mark

– Battery

– Inverter

– Controls

– Others such as PV modules

• Overall system will then be approved

via two common methods

– Model Certification

– Field Evaluation or Inspection

Model Certification

7 Creating a better, safer, more sustainable world where standards work for people and business

• Typically used for high volume applications

such as residential applications for energy

storage

• Requires a follow-up factory inspection

process to ensure products are being made

to the certified design

• Bears a certification mark from a recognized,

accredited certification body

A residential energy storage system used to

store PV energy may require model

certification and carry a certification mark

Field Evaluation

8 Creating a better, safer, more sustainable world where standards work for people and business

• Used for low volume installations such as

commercial applications for energy storage

(<500 per year in Canada for example)

• Two programs in North America

– US Field Evaluation (USFE) in the USA – a voluntary

program based on local authority requirements

– Special Inspection (SI) in Canada – mandatory for

non-certified products

A commercial energy storage system may

require field evaluation and carry a SI

label in Canada or USFE label in the USA

Overview of SI/FE Process

9 Creating a better, safer, more sustainable world where standards work for people and business

• Review certification or testing documents for critical

components prior to inspection

– Battery, Inverter, etc.

– Functional Safety review of software may be required

• Inspect installation to confirm code compliance, may

conduct some testing

• Confirm installed components match certifications

• Confirm environmental requirements

– Ventilation, Enclosure, Foundation, Site protection, etc.

• Apply SI/FE label and issue report

Will India implement a

similar field evaluation

program for Energy

Storage installation

approval?

Sample of ES Component Standards

10 Creating a better, safer, more sustainable world where standards work for people and business

Sample Documents

IEC 62485-5

Safety requirements for secondary batteries and

battery installations – Part 1-5: Lithium-ion batteries

for stationary applications

IEC 62485-2

Safety requirements for secondary batteries and

battery installations – Part 1-2: Stationary Batteries

(lead-acid and nickel batteries)

IEC 62932 series

(draft)

Flow batteries for stationary applications; General,

performance, and safety requirements

UL 1741

Inverters, converters, controllers, and interconnection

system equipment for use with distributed energy

storage systems

UL1973 Batteries for use in stationary applications and light

electric rail

IEC 61850 Communications networks and management

systems

• Components of the system will

need independent certification

– Battery cells

– Battery pack/module

– Inverter

– Controls, circuit breakers, etc.

Sample of ES System Standards

11 Creating a better, safer, more sustainable world where standards work for people and business

Sample Documents

IEC 62933 Series

(draft)

Electrical Energy Storage Systems: Terminology,

planning and installation, environmental issues, and

safety considerations

UL9540 Safety for energy storage systems and equipment

IEEE 1547 Standard for interconnecting distributed resources

with electric power systems

IEC 60529, IEEE

1357, UL 96A, IBC,

IFC, and NFPA 70

Anchoring and protection from natural disasters

(seismic, flood, etc.) and the elements (rain, snow,

wind, etc.)

ASME TES-1

(draft)

Safety for molten salt thermal energy storage

systems

• System-based standards now

becoming more popular

• IEC very active with a series of

draft ES standards nearing

publication

• Installation considerations also

covered by many standards

• System standards may include

additional evaluations:

– Functional safety of software

– Cyber security

– Failure mode and effects analysis

Summary

12 Creating a better, safer, more sustainable world where standards work for people and business

• Standards development is complicated but very

important to future manufacturing and ES growth

– Get involved in technical committees and local industry

groups like IESA

– Seek help from an accredited certification body

• India is a major player in the global growth of ES

– According to Customized Energy Solutions, the India

market for ES will grow from about 20,000 MWh in

2016 to over 60,000 MWh by 2022

• Driving towards harmonization with international

standards will help India’s ES efforts grow

Thank you!!

13 Creating a better, safer, more sustainable world where standards work for people and business

Jim Green

Global Business Manager, Energy Storage

Jim.green@csagroup.org

Saibal Mukhopadhaya

Country Manager, India

Saibal.Mukhopadhaya@csagroup.org