mastering solar planning permits presentation

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www.ener center.or

Mastering Solar Planning & Permits

City of San DiegoCounty of San Diego

October 18, 2011


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www.e e ce te .o

2www.energycenter.org

California Center for Sustainable EnergyVision:

To create a sustainable energy future.Mission:

To foster public policies and provideprograms, services, information and forums

that facilitate the adoption of clean, reliable,renewable, sustainable and efficient energytechnologies and practices.


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CCSE Programs

California Solar Initiative

Multi-Family Affordable Solar

Housing Project Solar Water Heating Program

Clean Vehicle Rebate Project

Energy Upgrade California

CCSE operates in five focus areas: energy efficiency,renewable energy, climate change, transportation andgreen building.

Self-Generation Incentive Program(Wind and Fuel Cells)

Energy Advisory Services Urban Forestry Advisory Services Energy Resource Center


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CCSE Services Workshops and Events Tool Lending & Resource Library Expanded Display Space Energy Advisory Services Technical Assistance Vendor Database Green Career Network


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Upcoming Events

Oct 20 CSI Thermal Contractor and Self-Install Training

Oct 26 Skips Tips Advanced Solar Thermal Workshop

Nov 1 Energy Upgrade California Orientation Workshop

Nov 15 Passing the CSI Inspection Protocol


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CCSE Housekeeping

Please sign in Turn off your cell phones Refreshments Recycle and compost Restrooms down the hall Fill out your Evaluation Forms

Tell people about CCSE! Presentation will be available online atwww.energycenter.org/csi-presentations


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Mastering Solar Planning &Permits

Among the things that make an installation easier,is a better understanding of municipal processes,

permitting and issues related to safety.

Installing a solar PV system in San Diego?


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Introduction-

Patrick HealyChief EPM Inspector*DPLU, Building div. - County of San Diego

19 years experience combination inspector County of San Diego 7 years as Electrical Specialist County of San Diego Past President - So Cal Chapter, International Association of Electrical

Inspectors Past President - International Code Council, San Diego Area Chapter Code Advisory Committee - CBSC


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Marisa SmithPlanner 1DPLU Planning div. - County of San Diego


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Agenda Trends in Solar Permits Personal History with Solar in SD County Agencies involved in solar regulations Codes Applicable to Solar State Code Process Local Ordinances Local Interpretation Local Policies Standards applicable to Solar Equipment Plan Submittal Requirements and Permitting Documentation and County Handouts Plan Submittal requirements and Process Most common solar systems

Plan technical basics

Common plan errors Commercial project requirements Q/A


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Practical?


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Practical? Depends


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Coastal areas ?

Dont see as much solar oncoast?

Is Fog and Clouds theDetermining Factor, or is it

the lower HVAC costs inthe coastal area?


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5 Acres?


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5 Acres?300 Acre Project coming to SD County


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5 Acres?300 Acre Project coming to SD County6000 Acre Project coming to Central CA 540 MW


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FRANCE


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FRANCE - Mountains


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Whats with all the interest in solar?


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"Comparing finite and rene wable planetary energy reserves

(Terawatt-years). Total rec overable reserves are shown forhe finite resources. Yearly potential is shown for the

renewables." (source: Pere z & Perez, 2009a)

"Comparing finite and renewable planetary energy reserves(Terawatt -years). Total recoverable reserves are shown for thefinite resources. Yearly potential is shown for the renewables."(*source: Perez & Perez, 2009) *
http://c1.cleantechnica.com/files/2011/08/energy-resources-renewables-fossil-fuel-uranium.pnghttp://c1.cleantechnica.com/files/2011/08/energy-resources-renewables-fossil-fuel-uranium.pnghttp://c1.cleantechnica.com/files/2011/08/energy-resources-renewables-fossil-fuel-uranium.pnghttp://c1.cleantechnica.com/files/2011/08/energy-resources-renewables-fossil-fuel-uranium.pnghttp://c1.cleantechnica.com/files/2011/08/energy-resources-renewables-fossil-fuel-uranium.pnghttp://c1.cleantechnica.com/files/2011/08/energy-resources-renewables-fossil-fuel-uranium.png


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Once you know the size of the reserves it easy tosee the number of years those reserves wouldlast. At the end of 2009 the estimates were

Oil: 46 years (depleted in 2055)

Natural gas: 63 years (depleted in 2072)

Coal: 119 years (depleted in 2128)


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Total Solar Irradiance upon Earthwas measured by satellite to be

roughly 1.361 Kilowatts per

square meter1 MW of PV generates 1,500,000 kWh per year


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Other Factors

Incentives - The federal and state financialincentives have undoubtedly fueled the rise in the

solar industry and the economy

Interest - People just like solar and being involved indoing something good for the environment


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Trends in Solar


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After standing at 17 gigawatts in July 2011, the US non-residential pipeline increased to 24 GW by September 2011

California currently accounts for 61% of the total US project pipeline*New Projects in California, Some in SD County


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After standing at 17 gigawatts in July 2011, the US non-residentialpipeline increased to 24 GW by September 2011

California currently accounts for 61% of the total US project pipelineUtility-driven activity is now evident across 35 states *


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Personal Experience with Solar

Past 7 years as the County Electrical Specialist

First year about 3 -5 permits a week Currently an average of about 10- 15 a Day Recent Surge in Commercial Recent Interest in Solar Farms and Utility Grade Plants

Solar Photovoltaic Permits Issued


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131 167 169219

279

382

433

954

981

1336

0

200

400

600

800

1000

1200

1400

1600

(Includes: Groun d-Mount PV, Roof-Mount PV, & Solar Water Heaters) (Current FY Annualized)


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ACTUALSSOLAR PV RESIDENTIALPERMITS ISSUED 952

TOTAL RENEWABLE ENERGY PERMITS 981TOTAL FEE'S WAIVED $322,401

RENEWABLE ENERGY CAPACITY AND GENERATION: AMOUNT OF PV GENERATING CAPACITY INSTALLED (MW) 5.44

EMISSIONS REDUCTIONS (TONS) (CO2 EQUIVALENTS) IN CARBON:

PHOTOVOLTAIC 6029.035

TOTAL 6086.886

Renewable Energy Permits FY 10/11


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ACTUAL PROJECTIONRESIDENTIAL SOLAR PV PERMITS 330 1320

TOTAL FEE'S WAIVED $112,211 $448,844

AMOUNT OF PV GENERATING CAPACITY INSTALLED 1.7885 7.15400

:EMISSIONS REDUCTION (TONS) (CO2 EQUIVALENTS) IN CARBON 1982.105 7928.421

Renewable Energy Permits FY 11/12


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http://c1.cleantechnica.com/files/2011/08/solar-pv-cost-trend.png


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http://c1.cleantechnica.com/files/2011/08/solar-pv-cost-trend.pnghttp://c1.cleantechnica.com/files/2011/08/solar-pv-cost-trend.png


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Though State and Federal Incentives have decreased,so have the costs of Solar Modules*
http://c1.cleantechnica.com/files/2011/08/solar-pv-cost-trend.png


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New Technologies in Solar productsSolar Sand

Thin Film

Organic Modules

Concentrating PanelsCopper, Indium, Gallium, Selenide (CIGS Panels)

Many, many others


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What Do Building Departments Do and

What Rules and Codes Do They Apply

Lets take a look


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Promote safe and sanitarybuildings, utilities, and

structures, and regulatetheir use in a manner thatbest serves the individual,the environment and the

community


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NFPA in response to GM:In the effort to rapidly change the country to Green technologies, the

last thing we need is for Building Codes and the Local BuildingDepartment to become obstructionists to the change.


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While Building Department personnel have a duty to stay in touch with thelatest trends and technologies, codes may not entirely keep up with these

quickly evolving renewable industries.It is sometimes necessary to use education, experience, and expertise in

interpreting the purpose and intent of these codes

Our primary responsibility is the health, safety, and well being of the residentsof our communities.

*


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Personal History with Solar

25 years ago in Julian I saw my first solarsystem.

Stand alone with Batteries 150K

Lost in Cedar Fire Rebuilt - w/solar


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Types of Solar Permits

Residential Roof Mount Residential Ground Mount

Commercial Roof Mount Commercial Ground Mount Agricultural Solar Farm/Utility Grade Solar Plant, Off-Site

Permit Fees within the County of


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Permit Fees within the County ofSan Diego

Residential Roof Mount - Residential Ground Mount - Commercial Roof Mount - Commercial Ground Mount - Agricultural -

Solar Farm/Utility Grade Solar Plant -



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Residential Roof Mount - $0 Residential Ground Mount - Commercial Roof Mount - Commercial Ground Mount - Agricultural -




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Residential Roof Mount - $0 Residential Ground Mount - $0 (could be fees charged by DEH and DPW) Commercial Roof Mount - Commercial Ground Mount - Agricultural -




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Residential Roof Mount - $0 Residential Ground Mount - $0 (could be fees charged by DEH and DPW) Commercial Roof Mount - Based on Size/ Percentage of Valuation Commercial Ground Mount - Based on Size/ Percentage of Valuation Agricultural - Based on Size/ Percentage of Valuation




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Residential Roof Mount - $0 Residential Ground Mount - $0 (could be fees charged by DEH and DPW) Commercial Roof Mount - Based on Size/ Percentage of Valuation Commercial Ground Mount - Based on Size/ Percentage of Valuation Agricultural - Based on Size/ Percentage of Valuation

Solar Farm/Utility Grade Solar Plant - Based on Size/ Percentage of Valuation,&/or the cost of providing the services


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Fees for Residential Solar permits are Waived under The County of San DiegosGreen Building Program and Homeowners Relief Act.

These programs were created by the County Board of Supervisors to AidHomeowners, and Promote the Use of Green Technology.

Additional Funding Provided by the Federal,American Reinvestment and Recovery Act,

Providing Grants to Local Government

GOVERNMENTAL REGULATORY AGENCIES &


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GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIES

OVERSEEING SOLAR INSTALLATIONS State of CA,Local Bldg DeptLocal Planning and Zoning

Local Fire DeptLocal Health DeptLocal Public Works Dept Area-wide Policies and Interpretation Authorities such as the local ICC ChapterPUC, CECOTHER AGENCIES



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GOVERNMENTAL:State of CA -



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State of CA Adopts the State Building Codes


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State of CA



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GOVERNMENTAL:State of CA Adopts the State Building Codes. State Agencies California Building StandardsCommission (CBSC) - Ca Fire Marshal, HCD, Others. All have an impact on whatgoes into the CA Codes.



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State of CA

THE 2011 MODELCODE WILLBECOME



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State of CA

THE 2011 MODELCODE WILLBECOME

THE 2013 CALIFORNIAELECTRICAL CODE


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ALL CITIES AND COUNTIES IN CALIFORNIA ARE MANDATED TO ENFORCE THECALFORNIA BUILDING CODES


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Local Bldg. Dept

Local Bldg. Dept

Interprets and applies the state codes

Enacts local ordinances for topics not covered in code.Sets policies for functions and operationsPerforms plan-check and inspection to verify code compliance.


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http://www.sdcounty.ca.gov/dplu/bldgforms/index.html

San Diego County Websitefor forms and handouts

Solar Ordinance

http://www.sdcounty.ca.gov/dplu/ceqa/POD09006.html

Building Div Forms and Handouts
http://www.sdcounty.ca.gov/dplu/bldgforms/index.htmlhttp://www.sdcounty.ca.gov/dplu/ceqa/POD09006.htmlhttp://www.sdcounty.ca.gov/dplu/ceqa/POD09006.htmlhttp://www.sdcounty.ca.gov/dplu/bldgforms/index.html


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OTHER LOCAL AGENCY INVOLVEMENT Planning/Zoning regulations Fire regulations Health Department (DEH) for septic systems Public Works for flood plains, drainage courses

DEH Requirements for Ground Mount Systems


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q y

Two primary concerns are addressed when DEH reviews ground mounted solar arrays. The first being the array itself and its proximity tothe septic system. Second being the utility trench to the electric panel and its proximity to the septic system. Below are the reviewstandards for DEH.

Ground Mount Array The array is considered a structure. The minimum setback for a leach line to a structure is 8 feet. The setback should be measured fromthe outermost point of the array whether it be the footing or the solar panel itself. Reasoning here is adequate room to maneuverequipment for a septic system repair. This setback must also take into account reserve leach field area. Setbacks for solar arrays to septictanks are 5 feet. Here again to the outer most edge of the array allowing for equipment access.

Utility Trench The utility trench from the solar array cannot cross over a primary or reserve leach field area. The utility trench should maintain a 5:1setback to a leach line for every foot of depth (2 ft deep utility trench = 10 ft setback to leach line). This would include reserve leach fieldareas. Utility trenches cannot cross over septic tanks and require a minimum 5 ft setback to the edge of the tank.

Plans need to identify the location of the septic tank and leach field. Then the accuracy needs to be verified by DEH records, or in the casewhere there is no record a DEH visit to the site

Good records from property owner or DEH showing no issues, sign-off is over the counter (OTC). Usually larger lots with lots of room. No records. Need licensed contractor to find system and produce an as-built (signed and dated by contractor). If DEH is comfortable

with this then an OTC is done, if not comfortable DEH may charge a 2 hr minimum consultation to do a site check. Impacts to septic system will require relocation of solar array. Impacts to septic system that cannot be mitigated with a relocation will

not be approved


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County Fire MarshallRequirements for Solar

Installations


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ACCESS


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ACCESSFOR SERVICINGFOR FIREFIGHTERS


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Department of Public Works

Solar panels and equipment mustbe mounted a minimum of 12about the recorded flood plain


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PUBLIC UTILITIES PUC, CECCODE WRITING PANELS AND COMMITTEESSTANDARDS AGENCIES AND TECHNICAL COMMITTEES( UL, ANSI, ETC )*

NRTLs - NATIONALLY RECOGNIZED TESTING AGENCIESTHIRD-PARTY FIELD EVALUATORSCCSE AND OTHER AGENCIES OVERSEEING GREEN PROGRAMS LOCAL ORGANIZATIONS LIKE ICC AND CALBOOTHERS?

NON- GOVERNMENTAL AGENCIES &

AUTHORITIES ON SOLAR


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San Diego Area Electrical Newsletters

Drafted by the San Diego Chapter of ICC

www. iccsandiego .org/uploads/2005%20Electrical%20 Newsletter %20Final%201-10-06.pdf

http://www.iccsandiego.org

Newsletters Link
http://www.iccsandiego.org/uploads/2005%20Electrical%20Newsletter%20Final%201-10-06.pdfhttp://www.iccsandiego.org/uploads/2005%20Electrical%20Newsletter%20Final%201-10-06.pdfhttp://www.iccsandiego.org/uploads/2005%20Electrical%20Newsletter%20Final%201-10-06.pdfhttp://www.iccsandiego.org/uploads/2005%20Electrical%20Newsletter%20Final%201-10-06.pdfhttp://www.iccsandiego.org/uploads/2005%20Electrical%20Newsletter%20Final%201-10-06.pdfhttp://www.iccsandiego.org/http://e/sdaenl%20jan08.pdfhttp://e/sdaenl%20jan08.pdfhttp://www.iccsandiego.org/http://www.iccsandiego.org/uploads/2005%20Electrical%20Newsletter%20Final%201-10-06.pdf


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UL STANDARDS FOR SOLAR PRODUCTS

UL1703* For flat plate modules and panelsUL 1741* Grid Tied InvertersUL 2703 Solar Racking Systems and Grounding

*ANSI approved Standard

UL is testing products to safety standards, but isshowing an interest in testing to efficiency standards

also. This to help certify the claims made bymanufacturers of solar products


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S d d M i i l P


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Standard Municipal Process:Plan Check Review

Permit IssuanceInspection

The level of Plan review depends on the scope of the project

Typical roof mount residential plan review includes:

Roof Plan - overall layout of modules, electricalpanels/equipment, and conduit runsElectrical plan review single line electrical diagramElectrical Calculations Voltage, Amperage, Derating factors,

Overcurrent and conductors sizing.Structural roof attachment review racking systemEquipment Data SheetsProperty history review and zoning reviewPermit issuance 0 fees *Inspection Most residential roof-mounts are a singleinspection, performed when the job is complete

St d d M i i l P


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Standard Municipal Process:Plan Check Review

Permit Issuanceand Inspection

Typical residential ground mount includes most items shown fora roof mount and additionally:

Plot Plan reviewStructural foundation review and support attachmentsDpt of Environmental Health review for septic concernsDpt of Public Works Review for flood plain setbacksPermit issuance $0 Building Div fees*

Inspection Most ground-mounts require multiple inspectionsFoundation, U/G Electric, and Final Inspection

*If additional electrical work needs to be performed, regular electrical fees apply* Fees apply to DEH and DPW review

St d d M i i l P i


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Standard Municipal Process isPlan Check Review


Typical Commercial and Agricultural On-site Solar would includemost of the previous items and additionally;

Professionally designed electrical and structural plansZoning Review and possible zoning criteria administeredPossible Fire Department ReviewPossible Submittal of Plans

Permit issuance Fees Apply

St d d M i i l P i


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Standard Municipal Process isPlan Check Review


Typical Solar Farm and Utility Grade Off-site Solar would includemost of the previous items and additionally;

Use Permit/Admin Permit reviewFire Department ReviewSubmittal of PlansPermit issuance Fees Apply


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Sample PlansROOF MOUNTED SYSTEM


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Sample Plan # 2ROOF MOUNTED SYSTEM


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IDENTIFY THE LOCATION OF THECONDUIT RUN


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REQUIRED


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REQUIREDREQUIRED


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REQUIRED

2 GROUND RODSREQUIRED

REQUIRED


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REQUIRED

2 GROUND RODSREQUIRED

REQUIRED

AC DISCONNECT ?


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The Combined maximum output ofinverters on the AC side X 1.25%indicates the minimum size breaker.Conductor size is determined by thebreaker rating and derating of theconductors. Derating is needed for morethan 3 conductors in a raceway, distance

mounted off the surface of the roof, andthe ambient temperature for the area ofthe installationMaximum Breaker size is determined bythe rating of the main breaker and therating of the solar breakers notexceeding the rating of the buss bar X120%


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2 1/2 IMBEDMENT


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Sample Plan # 3GROUND MOUNTED SYSTEMgmspdf
http://e/Ground%20Mount%20Sample%20%20Plan.pdfhttp://e/Ground%20Mount%20Sample%20%20Plan.pdf


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Sample Plan # 4ROOF MOUNTED SYSTEMgmspdf1
http://e/Roof%20Sample%20Reduced.pdfhttp://e/Roof%20Sample%20Reduced.pdf


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Sample Plan # 5GROUND MOUNTED SYSTEMgmspdf2
http://e/SolarCity%20Roof%20MT.pdfhttp://e/SolarCity%20Roof%20MT.pdf


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Third-Party Grounding Devices

Must be specifically mentioned in the installation

instructions for the modules

Grounding Clips tested in conjunction with a rackingsystem thats listed to UL 2703 must specifically identifythe modules that it was tested with.


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Class-A roofing?


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Class-A roofing?

Some modules have a class-A rating


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Class-A roofing?

Some modules have a class-A rating

Most require a class-A roof underneath (new construction)


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CLASS A ROOF?


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Target Fire Bakersfield


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g

Link
http://e/Target%20PV%20Fire.pdfhttp://e/Target%20PV%20Fire.pdf


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Metal Roofs


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http://buysolarpowernow.com/review/product/B002TJFGD6/buysolarnow-20/solartech-spm040p-n-40-watt-12-volt-polycrystalline-pv-solar-panel


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http://buysolarpowernow.com/review/product/B002TJFGD6/buysolarnow-20/solartech-spm040p-n-40-watt-12-volt-polycrystalline-pv-solar-panel


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INDIA


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Teaching the Basics

Want to teach your kids about renewable energy in a way thats relevant andinteresting?

If youre installing a new solar power system for your home, its a perfect

opportunity to talk about how it works, why its important for the environment,and you can throw in some math lessons too. Solar power is complicated enoughthat older children and adults can learn plenty, but it can also be explained in a

way that even younger kids can understand

NOW SERVING

SOLAR POWER IN SAN DIEGO


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SOLAR POWER IN SAN DIEGO


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Thank You

Q & ATime Permitting

NEXT UP


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Marisa SmithPlanner 1

DPLU Planning Div. - County of San Diego

NEXT UP

County of San Diego Planning


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y g g

Requirements for Solar


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1) roof-mount

2) ground-mount on-site3) ground-mount off-site

Roof Mount Solar PV


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Ground Mount Solar PV - residential


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Roof mount - Solar PV - commercial


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Ground Mount Off-Site


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N


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Typical Plot Plan


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Typical Plot Plan


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Typical Plot Plan show all existing structure


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Existing SFD

Typical Plot Plan - setbacks


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Typical Plot Plan


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Typical Plot Plan


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EXPIRED PERMITS


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Summary


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Q & A?

Development Services DepartmentDivision of Building, Safety & Construction


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1

PhotovoltaicInformation Session

Mar t in Mon tess oro

Oc to b er 18, 2011


Resources


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3

Resources Information Bulletin 301 Plan Template

Inspection Guidelines SD Area Electrical Newsletterhttp://www.sandiego.gov/development-services/



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4

Submit Plans and Documents

Over-the-Counter by Appointment(SFR Per Template) Master Plan

Options For Plan Review


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Plan Submittal


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Plan Submittal Check in on the third floor of DSC Walk- in or Appointment at Submittal

Plan Check fees have to be paid at thetime of Submittal

Plans are distributed to all reviewers

(Structural and Electrical)

6


Over-the-Counter by


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7

Plans and Documents per Plan

Template Call (619) 446-5300 for appointment Appointments are for one hour Maximum of two appointments per

day per customer Check-in at least 30 minutes prior to

your appointment

Over-the-Counter byAppointment


Master Plans


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Master Plans

8

Establish Master Plan Submit Plans on Third Floor of

DSC 10-Day Review

Fee - Hourly Plan Check Only


Master Plan


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9

Master Plan Installations Per Established Master Plan

Site Plan Issued Over-the-Counter at

Screening (3 rd Floor, DSC) Fees

Issuance

Records Permit Fee


Rechecks


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10

Rechecks

By Appointment with the reviewer Walk-In, Over-the-Counter

Electrical Counter (3 rd Floor,DSC)


Issuance


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11

Issuance

By Appointment with the Issuancestaff

Walk-In Over-the-CounterThird floor DSCPermit fees

Development Services DepartmentDivision of Building, Construction and Safety

Solar Photovoltaic Plan


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Solar Photovoltaic PlanReview Process

Complying Template Projects Roof Mounted SFD

12


DSD Residential Plan Template for


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DSD Residential Plan Template forSolar Photovoltaic

The Purpose is to reduce plan review time by: Establishing a standard format and layout Suggesting standard notes

13


Residential PV Template General Project


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14

Residential PV TemplateInformation

Notes for each

page on the

right-hand sideof the page

Plans need to be in a simple legible format

(11 X 17)


Residential PV Template PV Company Name


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15

Residential PV Template& Logo

Designer Name

Signature

License #

Project

Location


Residential PV Template Notes font large


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16

Residential PV Template enough to belegible

Identify Property

Lines

PageReference


Residential PV Template


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17

Residential PV TemplateLocate Building ,Plumbing

and Mechanical VentsArray layout custom

to each project

showing the number

of modules




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18


Identify the location of

the conduit. If DC

conductors are routed

within the building

they must be within a

metallic conduit

marked CAUTION DC

CIRCUIT every five

feet.




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19


Show Meter Location

Show Inverter Location




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20

pStructural

calculations are

required for the roof

or structure mounted

PV systems if theweight of the PV

system exceeds five

pounds per square

foot.




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21


Roof Framing and

the Rack lay out

Typical Detail to

show the

attachment

Provide a Water Proofing Detail


Residential PV Template Single Line


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22


Identify the wire type

and size

Show the number ofmodules per string

and the number of

strings per system

Show the module

manufactures' name

and the model

number




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23


Identify the wire type,

and size

Identify the conduit

type, and size




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p g

24

Identify the wire type

and size

Identify the conduit

type and size

Show the inverter

manufactures' name

and the model

number




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p g

25

If a combiner box is

used identify the

ampere rating of the

bus and OCP




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26

Identify the ampere rating of

the bus, main breaker and

back-fed PV breaker




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27

Systems with micro inverters

need to show disconnects incompliance with (CEC 609.14 ( D))

If micro inverter system is

installed show the module

manufactures' name and the

model number




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28

Identify DC and AC

disconnects and where fuses

are required show the ampere

rating of the fuses




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Manufacturer Information Sheets

29

Include 8.5 by 11copies of the

Manufacturersspecifications

Verify that allcomponents are

listed by a NationallyRecognized TestingLaboratory for theintended use .


Technical Data


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30

Identify the short circuit current ( Isc ) and the open circuitvoltage ( Voc ).

Module Info Inverter Info


DSD Residential Plan Template for


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DSD Residential Plan Template forSolar Photovoltaic

QUESTIONS?

31



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Inspection Guidelines and

Suggested Practices


Inspection Process


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p To verify that the installation is in

conformance with the design of theapproved set of plans

To verify that the installation is incompliance with the California ElectricalCode and other applicable codes andregulations



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Purpose of the Code.the practical safeguarding of

persons and property fromhazards arising from the use ofelectricity



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2010 CaliforniaElectrical Code

2008 National Electrical Code with amendments from State agencies California Code of Regulations, Title 24, Part 3

Effective date January 1, 2011


Inspection Process


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p Contractor/owner responsibility to

schedule and coordinate all requiredinspections

Responsible party on site Provide access to all elements of

system installation


Inspection


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p Ground-mounted

1. footings for array frame

2. underground raceways3. final

Observe regulations for -

Brush Management Zones,Environmentally Sensitive Lands, andMultiple Habitat Planning Areas


Inspection (continued)


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Roof mounted arraysRough electrical (for any concealed

work)Roof array and bond (for integratedsystems or for tile roofs)

Final inspection


Necessary Paperwork on Site


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y p

Approved plans Inspection record card (DS-1798) Manufacturers Installation instructions

modules, racking, inverter



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Installation manuals inverters,


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modules



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Roof Mounted Systems


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44



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45



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Tile roofs



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47


Building Integrated PV


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49



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50



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51



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52


Micro-inverters


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53


Other Systems


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54


Other Systems


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55


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Racking system and grounding57


Flashing and Weather Protection


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Rolled roofing penetrationProperly flashed and sealed

59


Clearance to Vents


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61


Plumbing VentsPlumbing vents cannot be coveredby module installationVents shall terminate a minimum

f


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of6 above or 1 away horizontallyfrom adjacent PV modulesTermination shall not be higherthat the highest point of the existingroofVents less than 3 can beextended /offset but shall beproperly and independentlysupportedAll extensions shall meet therequirements of the CaliforniaPlumbing CodeExtension on any plumbing vent 3diameter or larger is not allowed

62



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Using Identified grounding points and approveddevices and materials



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Unapproved Grounding MeansNot approved braided copper with sheet metal screw into themodule frame

64



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65


Combiner Boxes, Junction Boxesd h d


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and Wiring Methods Listed equipment

Installed per manufacturer's installationinstructions

Cable Management

Conduit support



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Combiner boxes, wiring methodCombiner boxes shall be listedInstalled per the manufacturers instructions



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68



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69


Conduit support


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Conduit Support


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71



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Wiring methods and materials



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73



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74



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75


PV Wire


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76


Cable Management


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Conductor De-rating


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Derating for conductorampacity is required pernew Table 310.15(B)(2)

Use the ASHRAE tablesfor the ambienttemperature used for thecorrection factor

Air inside the raceway issignificantly hotter than thesurrounding air



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Inverters and DC Disconnects


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Listed utility interactive inverters As-built conforms to the design

Installed per manufacturers installationinstructions or recommendations System grounding electrode conductor

properly terminated


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82


Conductor terminations


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Inverter locations


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Service Equipment bus rating


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bus rating existing main overcurrent protection PV overcurrent protection

manufacturer breakers cable or conduit entry labeling

multiwire branch circuit relocation andbalanced load on bus

grounding system



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EXISTING Panel

Whats the rating of the bus? Total Sum of the Over-currentDevices Permitted 87


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89



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90


PV breakers and new and

existing multi wire circuits


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existing multi-wire circuits


Service Upgrades involving

Scheduled Outages with SDG&E


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Scheduled Outages with SDG&E Schedule DSD inspection for day of the

scheduled outage Contact the inspector re: time frame Equipment installed, framing weather-protected,

grounded, service entrance raceway or riser and service

entrance conductors installed


Ready for reconnection?


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Grounding


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Verify acceptable grounding for existingservice equipment or provide asupplemental electrode

Provide service and system groundingcompliant with the Code



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Water piping ground must be supplemented


Driven Ground Rod


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Irreversible Splicing Devices For grounding electrode conductors Micro-inverter installations - #8 or #6 Cu system grounding

conductors

99


DC and AC wiring through a

structure


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structure

100



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CAUTION Notching andBoring Wood Members

101



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Load-bearing 2 x 12 floor joists @ 12 OCnotched in middle 1/3 of spa n

102



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103



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Properly fire stop around all penetrations ofrated assemblies 104


Fire-resistive Exit Enclosures andPassageways


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105


Signage and Placarding


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Alternate power source placard DC raceways and DC disconnects

Cautionary Site specific design PV disconnect for utility operation


Alternate Power Source Placard


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111



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Suggested practices


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Survey the site verify the adequacyand condition of the existing electrical

system to accommodate a PV system A service upgrade or other corrections

may be required



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Inadequate work space



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115


Service Disconnects Maximum Six

Handles without a Main Disconnect


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Existing Service Entrance


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Existing service



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Service supplied by SIDA cable


Alternative

EnergySystems


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gySystemsinstalled with

safeguardinglife andproperty in

mind


Resources Photovoltaic Systems, 2

nd

ed. Dunlop IAEI News (www iaei org)


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IAEI News (www.iaei.org) IREC ( www.IRECUSA.org ) Field Inspection

Guidelines for PV Systems (Brooks Engg) Photovoltaic Power Systems: Suggested

Practices, Southwest TechnologyDevelopment Institute , NMSU(John Wiles)

NEC Handbooks - NFPA NFPAs NEC Plus City of San Diego Inspection Guidelines 121

http://www.irecusa.org/http://www.irecusa.org/


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Q ti ?