Solar Standards Development

Solar Standards Development An Overview of Product Standards July 22, 2016

About SEIA U.S. National Trade Association for Solar Energy Founded in 1974 1,000 member companies from all 50 states Our Mission: Build a strong solar industry to power America Our Goal: 100 gigawatts of solar capacity by 2020 July 22, 2016 2016 Solar Energy Industries Association 2

Speakers Evelyn M. Butler SEIA Director, Codes & Standards Joseph Cain, P.E. Chair, SEIA Codes & Standards Working Group Scott Jezwinski, Business Development Manager, UL LLC Shawn Martin, Director of Technical Services, ICC SRCC Thomas Kiggen SEIA Director, Membership July 22, 2016 2016 Solar Energy Industries Association 3

Agenda Introduction PV Standards Solar Heating and Cooling Structural July 22, 2016 2016 Solar Energy Industries Association 4

Standards Development Joe Cain Chair, SEIA Codes & Standards Working Group

Introduction How do standards go from voluntary to mandatory status? Charging language in body of code Inclusion in list of Referenced Standards International Building Code (IBC) Chapter 35 International Residential Code (IRC) Chapter 44 Adoption National: Referenced standard in the model codes State or local jurisdictions: Option to modify adoption and/or establish effective date Example: California fire classification of PV systems delayed in implementation Legislation Subject of Webinar 3! July 22, 2016 2016 Solar Energy Industries Association 6

Example: 2015 International Building Code July 22, 2016 2016 Solar Energy Industries Association 7

PV Standards Scott Jezwinski Business Development Manager, UL LLC Scott.Jezwinski@ul.com

Photovoltaic Systems Safety First Product Manufactures Authorities Having Jurisdiction Codes and Standards System Owners System Designers and Installers August 2, 2016 2016 Solar Energy Industries Association 9

Codes and Standards - Relationship Model Code Development Process UL Standards Development Process Step 1: Public Input Stage Step 2: Public Comment Stage Step 1: Proposal and STP formation Step 3: NFPA Technical Meeting Reference Standards Step 2: STP Comment and Review Step 4: Council Appeals and Issuance of Standard Step 3: Balloting and Public Comment Step 4: STP Consensus and Issuance of Standard *STP - Standards Technical Panel NFPA 70: National Electrical Code (NEC) (3 year cycle) UL 1703 UL 2703 UL 1741 (industry demand driven ) August 2, 2016 2016 Solar Energy Industries Association 10

UL PV Standards Timeline North American Leader 1986 UL1703 PV Modules and Panels 1999 UL1741 Inverters and Converters 1999 SU 1279 Solar Collectors 2005 UL 4703 PV Wire 2007 SU 2579 Low Voltage Fuse Holders 2007 SU 5703 Name Plate Rating 2008 SU 8703 Concentrator PV Modules 2010 UL 2703 Mounting Systems 2010 SU 4248 18 Fuse Holders 2010 UL 489B Circuit Breakers 2010 UL 6703/A Connectors 2010 SU 98B Dead Front Switches 2011 SU 1699B Arc Fault Protection 2011 UL 3703 Solar Trackers 2011 UL 3730 Junction Boxes 2011 SU 508i Disconnect Switches 2011 SU 9703 Wiring Harnesses 2012 UL 61215 Crystalline Module Type Approval 2012 UL 61646 Thin film Module Type Approval 2012 UL 62108 Concentrator Module Type Approval 2014 UL 62109 1 Power Converters 2000 > 2010 > 2020 International Collaborator IEC 61215 Module Type Qualification Series IEC 61724 System performance monitoring IEC 61730 1/2 Module safety IEC 61853 1/2 Module performance IEC 62078 Guidelines quality system IEC 62093 BOS design Qualification IEC 62109 1/2/3/4 Safety of Power Converters IEC 62446 System commissioning and Inspection IEC 62509 Battery charge controller performance IEC 62548 PV array design requirements IEC 62738 PV plant guidelines IEC 62804 System voltage durability for modules IEC 62938 Snow load testing IEC 62947 Energy performance August 2, 2016 2016 Solar Energy Industries Association 11

PV Standards System Reference PV Modules w/ Junction Box Roof or Ground mounted PV Modules UL 1703 UL/IEC 61215 UL/IEC 61646 UL/IEC 62108 IEC 61730 UL-SU 8703 BIPV UL 1703 / UL 790 Connector UL 6703 Fuse UL-SU 2579 Fuse Holder UL-SU 4248-18 ANSI-UL4248-1 Disconnects UL-SU 98B UL-SU 508i Circuit Breakers UL 489B Arc Fault Protection UL 1699B Combiner Box Charge Controller Inverter Cable for PV UL 4703 UL 9703 UL854 (USE-2) Combiner Box UL 1741 Charge Controller UL 1741 Inverter UL 1741 UL/IEC 62109 (PV+ only) IEEE 1547 Rack Mounting & Clamping Devices UL 2703 Solar Trackers UL 3703 Fire Test UL 1703 (roof mounted modules) Polymeric Materials UL 1703 UL 94 UL-SU5703 UL 746A/B/C Storage UL 1989 UL 2054 UL 9540 UL 1973 Batteries Many of the components or functions can be built into one product, such as the inverter. AC Loads Grid Tied or Stand Alone August 2, 2016 2016 Solar Energy Industries Association 12

IEEE 1547 - Grid Interconnection Standard UL 1741 references IEEE 1547 - Interconnecting Distributed Resources with Electric Power Systems and works in conjunction with grid tied products that operate in parallel with or backfeed power to the utility grid. IEEE 1547 Interconnection System Requirements Voltage Regulation Grounding Disconnects Monitoring Islanding IEEE 1547.1 Interconnection System Testing Temperature Stability Response to Abnormal Voltage Response to Abnormal Frequency Synchronization Protection from EMI Surge Withstand Paralleling Device DC Injection Unintentional Islanding Reverse Power Open Phase Reconnect after disturbance Harmonics UL 1741 Interconnection Equipment Construction Testing normal and abnormal Protection against risks of injury to persons and connected equipment. Ratings, Markings and Instructions Specific DR Tests for specific technologies Production line testing Certifications address NEC and electric utility interconnection needs. August 2, 2016 2016 Solar Energy Industries Association 13 13

UL1741SA for Grid Support Utility Interactive Inverters UL1741 Supplement Grid Support Utility Interactive created to bridge the gap until the IEEE 1547 and IEEE 1547.1 Grid Support revisions are completed. Mandatory Anti-Islanding L/HVRT L/HFRT Must Trip Test Normal Ramp Rate Soft-Start Ramp Rate Specified Power Factor Volt/Var Mode Ballot closed on 6/16/2016 Adoption approved but 200+ comments need to be resolved & recirculated. Expected publication in late August/early September http://www.energy.ca.gov/electricity_analysis/rule21/ August 2, 2016 2016 Solar Energy Industries Association 14

UL1741 - Rapid Shutdown The 2017 NEC code panel meeting revised a 690.12 proposal to include new requirements for rapid shutdown protection internal to a PV array and includes the following options: Option 1: List and label or field-label PV array as a rapid-shutdown PV array. Option 2: Limit control conductors within the array boundary to 80 V or less within 30 seconds of rapid-shutdown initiation. Option 3: Install nonmetallic PV array with no exposed wiring and array more than 8 feet from any grounded metal parts * Implementation of Option 1 requires development of a safety standard for evaluation and certification of rapid-shutdown products for use in PV arrays. CMP 4 added a delayed adoption date, specifying that 690.12(B)(2) shall become effective January 1, 2019. to allow time for the standard s development process August 2, 2016 2016 Solar Energy Industries Association 15

UL 1703 Photovoltaic Modules and Panels Recent proposed revisions with Bulletins Issued: April 1, 2016: Addition of Allowable PV Cable Connectors to Module Documentation and Revising the Reference to the Standard for Component Connectors for Use in Data, Signal, Control and Power Applications, UL 1977, to the Standard for Connectors for Use in Photovoltaic Systems, UL 6703. April 29, 2016: Revision to Expand the Definition of Type 3 Module in the Section 16, Fire Performance. Current Topics under discussion within the UL1703 STP: Mechanical loads and groupings Frames used as grounding conductors Move fire testing requirements to UL 2703 August 2, 2016 2016 Solar Energy Industries Association 16

UL 2703 Mounting Systems, Mounting Devices Recent proposed revisions with Bulletins Issued: November 2, 2015: Addition of an Option for Including a QR Code for Installation Instructions. Current Topics under discussion within the UL2703 STP : Bonding and grounding Mechanical loading Manuals and markings Corrosion resistance August 2, 2016 2016 Solar Energy Industries Association 17

UL - IEC Standards Adoption Activities IEC 61730-1/-2: Photovoltaic (PV) module safety qualification. IEC 62891: Indoor testing, characterization and evaluation of the efficiency of photovoltaic gridconnected inverters IEC 62509: Battery charge controllers for photovoltaic systems - Performance and functioning IEC 62093: Balance-of-system components for photovoltaic systems - Design qualification natural environments IEC 62738: Design guidelines and recommendations for photovoltaic power plants IEC 62548: Photovoltaic (PV) arrays - Design requirements IEC 62446: Grid connected photovoltaic systems - Minimum requirements for system documentation, commissioning tests and inspection IEC 61724: Photovoltaic system performance monitoring - Guidelines for measurement, data exchange and analysis IEC 61215-1./-1.1/-2 : Terrestrial photovoltaic (PV) modules Design qualification and type approval IEC TS 62941: Terrestrial photovoltaic (PV) modules Guidelines for increased confidence in PV module design qualification and type approval * US Technical Advisory Group assigned to UL August 2, 2016 2016 Solar Energy Industries Association 18

UL Standards Certification and Labeling Third-Party certification to UL standards for PV products is required by many programs and codes. Certification to a given standard may be done by an accredited certification body. Right to mark product with certification marks. Online listings of certifications available from most certifiers August 2, 2016 2016 Solar Energy Industries Association 19

Want to learn more about UL Standards Development? Find out how you can become involved in the UL standards development process: http://csds.ul.com/ Or learn more about UL Standards: http://ul.com/standards Thank you! Scott Jezwinski scott.jezwinski@ul.com August 2, 2016 2016 Solar Energy Industries Association 20

Solar Heating and Cooling Shawn Martin Director of Technical Services, ICC-SRCC smartin@solar-rating.org

Solar Heating & Cooling Solar thermal technology uses solar energy to directly heat fluids. No electrical energy generation (usually). Applications: Domestic water heating Space heating (air and water) Pool heating Cooling July 22, 2016 2016 Solar Energy Industries Association 22

Standards in Solar Heating and Cooling Building Codes Laws, Regulations & Ordinances Other Standards Incentive Programs SHC Standards Product Certification Programs July 22, 2016 2016 Solar Energy Industries Association 23

Key Standard Developers for SHC Solar Rating and Certification Corporation (ICC-SRCC) Underwriter s Laboratories (UL) ASTM International International Association of Plumbing & Mechanical Officials (IAPMO) ENERGY STAR Florida Solar Energy Center (FSEC) July 22, 2016 2016 Solar Energy Industries Association 24

SRCC Solar Thermal Standards Non-profit organization certifying and rating solar thermal systems and components. Established in 1980 s through the efforts of several states, DOE and SEIA. Current SRCC ANSI-approved standards ICC 901/SRCC 100-2015 Solar Thermal Collectors ICC 900/SRCC 300-2015 Solar Thermal Systems Cited by dozens of incentive programs nationwide, IRS tax code, ICC International Residential Code (IRC), IAPMO Uniform Solar Energy Code (USEC) July 22, 2016 2016 Solar Energy Industries Association 25

UL Solar Thermal Standards UL 1279-2010 Outline of Investigation for Solar Collectors Addresses factory-built collectors used in active and thermosiphon systems. Referenced by the IAPMO Uniform Solar Energy Code (USEC) Where PV modules are used within solar thermal systems, compliance with UL 1703-2014 Flat-Plate Photovoltaic Modules and Panels is required July 22, 2016 2016 Solar Energy Industries Association 26

ASTM Solar Thermal Standards ASTM E44.25 Heat Metering Committee E44 on Solar, Geothermal and Other Alternative Energy Sources Addresses performance and operational characteristics for heat meters, regardless of energy source. Final draft nearly ready to be submitted to ASTM for ballot, final version ~ end of 2016. No current references. July 22, 2016 2016 Solar Energy Industries Association 27

IAPMO Solar Thermal Standards Non-profit association of plumbing and mechanical officials. Develops related codes and standards and offers certifications and ratings for solar thermal systems and components. Current IAPMO SHC standards IAPMO S1001.1-2013 Design and Installation of Solar Water Heating Systems IAPMO S1001.4-2015 Energy Production Rating of Solar Heating Collectors Referenced by a limited number of incentive programs. July 22, 2016 2016 Solar Energy Industries Association 28

SHC Certification and Labeling Third-Party certification to several of the standards for collectors and systems is required by many programs and codes. Certification to a given standard may be done by any accredited certification body. Right to mark product with certification marks. Online listings of certifications available from most certifiers. July 22, 2016 2016 Solar Energy Industries Association 29

Getting Involved SEIA Codes and Standards Committee Monitor standard development Help to establish SEIA position Direct standard development Contact the committee chair or staff secretariat Participate in public comment periods SHC Industry groups SEIA SHC Alliance ICC-SRCC Codes and Standards Committee July 22, 2016 2016 Solar Energy Industries Association 30

Structural Joe Cain Chair, SEIA Codes & Standards Working Group joecainpe@gmail.com

Referenced Standards for Structural Engineering Structural standards directly referenced in IBC Chapter 35: American Society of Civil Engineers/Structural Engineers Institute ASCE/SEI 7-10 Aluminum Association (AA) ADM1 2015 American Iron and Steel Institute (AISI) North American Specification (a family of standards) American Institute of Steel Construction (AISC) Manual of Steel Construction, 14 th Edition American Concrete Institute (ACI) ACI 318-14 August 2, 2016 2016 Solar Energy Industries Association 32

Example Referenced Standard ASCE 7 Structural standards directly referenced in IBC Chapter 35 ASCE/SEI 7-10 August 2, 2016 2016 Solar Energy Industries Association 33

Referenced Standards for Structural Engineering AISI for Cold-Formed Steel (CFS) AISC for Hot- Rolled Steel August 2, 2016 2016 Solar Energy Industries Association 34

AISC American Institute of Steel Construction August 2, 2016 2016 Solar Energy Industries Association 35

American Concrete Institute - ACI 318-14 American Concrete Institute ACI 318-14 August 2, 2016 2016 Solar Energy Industries Association 36

ICC Acceptance Criteria AC 428 Modular Framing Systems Additional guidance that is not a referenced standard ICC Evaluation Services Acceptance Criteria 428 Acceptance Criteria for Modular Framing Systems Used To Support Photovoltaic (PV) Panels Required to obtain an evaluation report Also useful as voluntary guidance Wind calculation method specific to flush mounted PV systems on sloping pitched roofs Primary development conducted by Dr. Tim Reinhold of IBHS and Todd Ganshaw, P.E., of Unirac Allows internal pressure set equal to zero (within constraints) in Components & Cladding method July 22, 2016 2016 Solar Energy Industries Association 37

ICC Acceptance Criteria AC 365 for BIPV Additional guidance that is not a referenced standard ICC Evaluation Services Acceptance Criteria 365 Applies to Building-Integrated Photovoltaic (BIPV) Roof Covering Systems Structural provisions are the same as for any other roof covering materials and systems July 22, 2016 2016 Solar Energy Industries Association 38

FM Global Property Loss Prevention Data Sheets Additional guidance that is not a referenced standard FM Global Property Loss Prevention Data Sheet 1-15 Roof Mounted Solar Photovoltaic Panels Wind Fire Exposure and Classification Gravity Loads and Roof Drainage Hail Earthquake Operation and Maintenance Electrical Boundary Layer Wind Tunnel Testing and Ballasted PV Systems PV Systems Fastened to Standing Seam Roofs Fires and Electrical Ignition Sources July 22, 2016 2016 Solar Energy Industries Association 39

FM Global Property Loss Prevention Data Sheets Additional guidance that is not a referenced standard FM Global Property Loss Prevention Data Sheet 7-106 Ground-Mounted Solar Photovoltaic Power Natural Hazards Fire Electrical Lightning and Transient Protection Hot Work Supervision of Property July 22, 2016 2016 Solar Energy Industries Association 40

SEAOC Seismic white paper PV1, August 2012 Incorporated with modifications into ASCE 7-16 SEAOC developed seismic method to justify use of ballasted, non-penetrating PV mounting systems. Primary research conducted by Joe Maffei, PhD, S.E. of Maffei Structural Engineering and Rob Ward, S.E. of SunLink. Based on displacement method of analysis. July 22, 2016 2016 Solar Energy Industries Association 41

SEAOC Wind paper PV2, August 2012 Incorporated with modifications into ASCE 7-16 SEAOC developed low-profile wind calculation method based on combined solar-specific wind tunnel data points. Wind Tunnel Researchers: David Banks, Gregory Kopp, Timothy Reinhold. Includes commentary on Effective Wind Area. July 22, 2016 2016 Solar Energy Industries Association 42

Future DRAFT SEAOC White Papers in Development SEAOC PV Systems Committee is actively working on new white papers Gravity Design Loads by primary author Gwen Searer of WJE Structural testing requirements by primary author Rob Ward of SunLink Also in progress is: PV2 Wind update to ASCE 7-16 Rack stiffness/load sharing July 22, 2016 2016 Solar Energy Industries Association 43

SEIA Engagement Codes & Standards Working Group Member and industry driven initiatives focused on existing, new and upcoming new codes and standards proposals and requirements Meets bi-weekly by teleconference, in-person at Solar Power International August 2, 2016 2016 Solar Energy Industries Association 44

SEIA Membership & Benefits Market & industry intelligence and research Powerful advocacy and influence New business development opportunities Tools and programs to advance your business Upcoming SEIA Codes & Standards Webinars / Events: Solar Installed: The People and the Process enabling Market Acceptance and Implementation (August, free) Exploring the Rules of Engagement: An Introduction to Codes & Standards and the State of Regulations for Designing and Installing Solar (SPI, fee) August 2, 2016 2016 Solar Energy Industries Association 45

Q&A August 2, 2016 2016 Solar Energy Industries Association 46

SEIA Contacts Membership: Thomas Kiggen, Director of Membership E-mail: tkiggen@seia.org Phone: +1-202-540-5347 Codes & Standards: Evelyn M. Butler Director of Codes & Standards E-mail: ebutler@seia.org Phone: +1-202-681-4156 August 2, 2016 2016 Solar Energy Industries Association 47

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