Mastering solar planning & permits presentation 10182011

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Among the things that make a solar installation easier, is a better understanding of municipal processes, permitting and issues related to safety.

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Mastering solar planning & permits presentation 10182011

  1. 1. Mastering Solar Planning & Permits City of San Diego County of San Diego October 18, 2011 www.energycenter.org
  2. 2. California Center for Sustainable Energy Vision: To create a sustainable energy future. Mission: To foster public policies and provide programs, services, information and forums that facilitate the adoption of clean, reliable, renewable, sustainable and efficient energy technologies and practices. www.energycenter.org2
  3. 3. CCSE ProgramsCCSE operates in five focus areas: energy efficiency,renewable energy, climate change, transportation andgreen building.• California Solar Initiative• Multi-Family Affordable Solar • Self-Generation Incentive Program (Wind and Fuel Cells) Housing Project • Energy Advisory Services• Solar Water Heating Program • Urban Forestry Advisory Services• Clean Vehicle Rebate Project • Energy Resource Center• Energy Upgrade California www.energycenter.org 3
  4. 4. CCSE Services • Workshops and Events • Tool Lending & Resource Library • Expanded Display Space • Energy Advisory Services • Technical Assistance • Vendor Database • Green Career Network www.energycenter.org4
  5. 5. Upcoming Events• Oct 20 – CSI Thermal Contractor and Self-Install Training• Oct 26 – Skip’s Tips – Advanced Solar Thermal Workshop• Nov 1– Energy Upgrade California Orientation Workshop• Nov 15 – Passing the CSI Inspection Protocol www.energycenter.org5
  6. 6. 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 at www.energycenter.org/csi-presentations www.energycenter.org6
  7. 7. Installing a solar PV system in San Diego?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.
  8. 8. 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
  9. 9. Marisa SmithPlanner 1DPLU – Planning div. - County of San Diego
  10. 10. 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
  11. 11. Practical?
  12. 12. Practical? Depends
  13. 13. Coastal areas ? Don’t see as much solar on coast? Is Fog and Clouds the Determining Factor, or is it the lower HVAC costs in the coastal area?
  14. 14. •5 Acres?
  15. 15. •5 Acres?•300 Acre Project coming to SD County
  16. 16. •5 Acres?•300 Acre Project coming to SD County•6000 Acre Project coming to Central CA – 540 MW
  17. 17. FRANCE
  18. 18. FRANCE - Mountains
  19. 19. What’s with all the interest in solar?
  20. 20. "Comparing finite and renewable planetary energy reserves(Terawatt‐years). Total recoverable reserves are shown forthe finite resources. Yearly potential is shown for therenewables." (source: Perez & Perez, 2009a) "Comparing finite and renewable planetary energy reserves (Terawatt -years). Total recoverable reserves are shown for the finite resources. Yearly potential is shown for the renewables." (*source: Perez & Perez, 2009) *
  21. 21. 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)
  22. 22. Total Solar Irradiance upon Earth was measured by satellite to be roughly 1.361 Kilowatts per square meter 1 MW of PV generates 1,500,000 kWh per year
  23. 23. Other Factors Incentives - The federal and state financialincentives have undoubtedly fueled the rise in the solar industry and the economyInterest - People just like solar and being involved in doing something good for the environment
  24. 24. Trends in Solar
  25. 25. After standing at 17 gigawatts in July 2011, the US non-residential pipeline increased to 24 GW by September 2011
  26. 26. After standing at 17 gigawatts in July 2011, the US non- residential pipeline increased to 24 GW by September 2011California currently accounts for 61% of the total US project pipeline*New Projects in California, Some in SD County
  27. 27. After standing at 17 gigawatts in July 2011, the US non-residential pipeline increased to 24 GW by September 2011California currently accounts for 61% of the total US project pipeline Utility-driven activity is now evident across 35 states *
  28. 28. Recent report from Interstate Renewable EnergyCouncil shows the solar installed base of PV in 2010doubled compared to the solar installed base in 2009
  29. 29. 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
  30. 30. Solar Photovoltaic Permits Issued (Includes: Ground-Mount PV, Roof-Mount PV, & Solar Water Heaters) (Current FY Annualized)16001400 13361200 9811000 954800600 433 382400 279 219 169200 131 167 0
  31. 31. Renewable Energy Permits FY 10/11 ACTUALSSOLAR PV RESIDENTIALPERMITS ISSUED 952TOTAL RENEWABLE ENERGY PERMITS 981TOTAL FEES WAIVED $322,401RENEWABLE ENERGY CAPACITY AND GENERATION:AMOUNT OF PV GENERATING CAPACITY INSTALLED (MW) 5.44EMISSIONS REDUCTIONS (TONS) (CO2 EQUIVALENTS) IN CARBON:PHOTOVOLTAIC 6029.035TOTAL 6086.886
  32. 32. Renewable Energy Permits FY 11/12 ACTUAL PROJECTION RESIDENTIAL SOLAR PV PERMITS 330 1320 TOTAL FEES 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
  33. 33. Though State and Federal Incentives have decreased, so have the costs of Solar Modules*
  34. 34. New Technologies in Solar productsSolar SandThin FilmOrganic ModulesConcentrating PanelsCopper, Indium, Gallium, Selenide (CIGS Panels)Many, many others
  35. 35. What Do Building Departments Do andWhat Rules and Codes Do They Apply Let’s take a look
  36. 36. Promote safe and sanitary buildings, utilities, and structures, and regulatetheir use in a manner thatbest serves the individual, the environment and the community
  37. 37. 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 Building Department to become obstructionists to the change.
  38. 38. While Building Department personnel have a duty to stay in touch with the latest 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 codesOur primary responsibility is the health, safety, and well being of the residents of our communities. *
  39. 39. Personal History with Solar• 25 years ago in Julian I saw my first solar system.• Stand alone with Batteries• 150K• Lost in Cedar Fire• Rebuilt - w/solar
  40. 40. 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
  41. 41. Permit Fees within the County of San Diego• Residential Roof Mount -• Residential Ground Mount -• Commercial Roof Mount -• Commercial Ground Mount -• Agricultural -• Solar Farm/Utility Grade Solar Plant -
  42. 42. Permit Fees within the County of San Diego• Residential Roof Mount - $0• Residential Ground Mount -• Commercial Roof Mount -• Commercial Ground Mount -• Agricultural -• Solar Farm/Utility Grade Solar Plant -
  43. 43. Permit Fees within the County of San Diego• Residential Roof Mount - $0• Residential Ground Mount - $0 (could be fees charged by DEH and DPW)• Commercial Roof Mount -• Commercial Ground Mount -• Agricultural -• Solar Farm/Utility Grade Solar Plant -
  44. 44. Permit Fees within the County of San Diego• 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 -
  45. 45. Permit Fees within the County of San Diego• 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
  46. 46. Fees for Residential Solar permits are Waived under The County of San Diego’s Green Building Program and Homeowners Relief Act. These programs were created by the County Board of Supervisors to Aid Homeowners, and Promote the Use of Green Technology. Additional Funding Provided by the Federal, American Reinvestment and Recovery Act, Providing Grants to Local Government
  47. 47. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIES OVERSEEING SOLAR INSTALLATIONS•State of CA,•Local Bldg Dept•Local Planning and Zoning•Local Fire Dept•Local Health Dept•Local Public Works Dept•Area-wide Policies and Interpretation Authorities such as the local ICC Chapter•PUC, CEC•OTHER AGENCIES
  48. 48. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESGOVERNMENTAL:State of CA -
  49. 49. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESState of CA –Adopts the State Building Codes
  50. 50. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESState of CA –
  51. 51. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESGOVERNMENTAL: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.
  52. 52. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESGOVERNMENTAL: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.
  53. 53. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESGOVERNMENTAL: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.
  54. 54. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESState of CA – THE 2011 MODEL CODE WILL BECOME
  55. 55. GOVERNMENTAL REGULATORY AGENCIES & AUTHORITIESState of CA – THE 2011 MODEL THE 2013 CALIFORNIA CODE WILL ELECTRICAL CODE BECOME
  56. 56. ALL CITIES AND COUNTIES IN CALIFORNIA ARE MANDATED TO ENFORCE THE CALFORNIA BUILDING CODES
  57. 57. Local Bldg. DeptLocal Bldg. Dept –• Interprets and applies the state codes•Enacts local ordinances for topics not covered in code.•Sets policies for functions and operations•Performs plan-check and inspection to verify code compliance.
  58. 58. San Diego County Website for forms and handoutsSolar Ordinancehttp://www.sdcounty.ca.gov/dplu/ceqa/POD09006.htmlBuilding Div Forms and Handoutshttp://www.sdcounty.ca.gov/dplu/bldgforms/index.html
  59. 59. OTHER LOCAL AGENCY INVOLVEMENT•Planning/Zoning regulations•Fire regulations•Health Department (DEH) for septic systems•Public Works for flood plains, drainage courses
  60. 60. DEH Requirements for Ground Mount SystemsTwo 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 it’s 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 case where 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
  61. 61. County Fire MarshallRequirements for Solar Installations
  62. 62. ACCESS
  63. 63. ACCESSFOR SERVICING
  64. 64. ACCESSFOR SERVICINGFOR FIREFIGHTERS
  65. 65. Department of Public WorksSolar panels and equipment mustbe mounted a minimum of 12”about the recorded flood plain
  66. 66. NON- GOVERNMENTAL AGENCIES & AUTHORITIES ON SOLAR•PUBLIC UTILITIES – PUC, CEC•CODE WRITING PANELS AND COMMITTEES•STANDARDS AGENCIES AND TECHNICAL COMMITTEES ( UL, ANSI, ETC )*•NRTLs - NATIONALLY RECOGNIZED TESTING AGENCIES•THIRD-PARTY FIELD EVALUATORS•CCSE AND OTHER AGENCIES OVERSEEING “GREEN “ PROGRAMS•LOCAL ORGANIZATIONS LIKE ICC AND CALBO•OTHERS?
  67. 67. San Diego Area Electrical Newsletters Drafted by the San Diego Chapter of ICC http://www.iccsandiego.org Newsletters Linkwww.iccsandiego.org/uploads/2005%20Electrical%20Newsletter%20Final%201-10-06.pdf
  68. 68. UL STANDARDS FOR SOLAR PRODUCTSUL 1703* – For flat plate modules and panelsUL 1741* – Grid –Tied InvertersUL 2703 – Solar Racking Systems and Grounding*ANSI approved StandardUL is testing products to safety standards, but isshowing an interest in testing to efficiency standardsalso. This to help certify the claims made bymanufacturers of solar products
  69. 69. Standard Municipal Process: Plan Check Review Permit Issuance InspectionThe level of Plan review depends on the scope of the projectTypical roof mount residential plan review includes:•Roof Plan - overall layout of modules, electricalpanels/equipment, and conduit runs•Electrical plan review – single line electrical diagram•Electrical Calculations Voltage, Amperage, Derating factors,Overcurrent and conductors sizing.•Structural roof attachment review – racking system•Equipment Data Sheets•Property history review and zoning review•Permit issuance – 0 fees *•Inspection – Most residential roof-mounts are a singleinspection, performed when the job is complete
  70. 70. Standard Municipal Process: Plan Check Review Permit Issuance and InspectionTypical 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
  71. 71. Standard Municipal Process is Plan Check Review Permit Issuance and InspectionTypical 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 PlansPermit issuance – Fees Apply
  72. 72. Standard Municipal Process is Plan Check Review Permit Issuance and InspectionTypical 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
  73. 73. Sample PlansROOF MOUNTED SYSTEM
  74. 74. Sample Plan # 2 ROOF MOUNTED SYSTEM
  75. 75. IDENTIFY THE LOCATION OF THECONDUIT RUN
  76. 76. REQUIRED
  77. 77. REQUIREDREQUIRED
  78. 78. REQUIREDREQUIRED 2 GROUND RODS REQUIRED
  79. 79. REQUIREDREQUIRED AC DISCONNECT ? 2 GROUND RODS REQUIRED
  80. 80. 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, distancemounted 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%
  81. 81. 2 1/2” IMBEDMENT
  82. 82. Sample Plan # 3GROUND MOUNTED SYSTEM gmspdf
  83. 83. Sample Plan # 4 ROOF MOUNTED SYSTEM gmspdf1
  84. 84. Sample Plan # 5GROUND MOUNTED SYSTEM gmspdf2
  85. 85. Sample Plan # 6GROUND MOUNTED SYSTEM gmspdf3
  86. 86. Third-Party Grounding Devices •Must be specifically mentioned in the installation instructions for the modules •Grounding Clips tested in conjunction with a racking system that’s listed to UL 2703 must specifically identify the modules that it was tested with.
  87. 87. Class-A roofing?
  88. 88. Class-A roofing?•Some modules have a class-A rating
  89. 89. Class-A roofing?•Some modules have a class-A rating•Most require a class-A roof underneath (new construction)
  90. 90. “CLASS A” ROOF?
  91. 91. Target Fire Bakersfield Link
  92. 92. Metal Roofs
  93. 93. INDIA
  94. 94. Teaching the Basics Want to teach your kids about renewable energy in a way that’s relevant and interesting? If you’re installing a new solar power system for your home, it’s a perfect opportunity to talk about how it works, why it’s important for the environment,and you can throw in some math lessons too. Solar power is complicated enough that older children and adults can learn plenty, but it can also be explained in a way that even younger kids can understand
  95. 95. NOW SERVINGSOLAR POWER IN SAN DIEGO
  96. 96. Thank You Q&ATime Permitting
  97. 97. NEXT UPMarisa SmithPlanner 1DPLU – Planning Div. - County of San Diego
  98. 98. County of San Diego Planning Requirements for Solar
  99. 99. 1) roof-mount2) ground-mount on-site3) ground-mount off-site
  100. 100. Roof Mount Solar PV
  101. 101. Ground Mount Solar PV - residential
  102. 102. Roof mount - Solar PV - commercial
  103. 103. Ground Mount Off-Site
  104. 104. N
  105. 105. Typical Plot Plan
  106. 106. Typical Plot Plan
  107. 107. Typical Plot Plan –show all existing structure Existing SFD
  108. 108. Typical Plot Plan - setbacks
  109. 109. Typical Plot Plan
  110. 110. Typical Plot Plan
  111. 111. Typical Plot Plan
  112. 112. EXPIRED PERMITS
  113. 113. Summary
  114. 114. Q & A?
  115. 115. Development Services Department Division of Building, Safety & Construction PhotovoltaicInformation Session •Martin Montessoro October 18, 2011 1
  116. 116. Development Services Department Division of Building, Safety & Construction Resources Information Bulletin 301 Plan Template Inspection Guidelines SD Area Electrical Newsletter http://www.sandiego.gov/development -services/ 3
  117. 117. Development Services Department Division of Building, Safety & Construction Options For Plan Review Submit Plans and Documents Over-the-Counter by Appointment (SFR Per Template) Master Plan 4
  118. 118. Development Services Department Division of Building, Safety & Construction Submitted Plan Review All Commercial and Residential not per Template Documents and Plans per IB 301 10-Day Review Fees 5
  119. 119. Development Services Department Division of Building, Safety & Construction Plan Submittal• Check in on the third floor of DSC• Walk- in or Appointment at Submittal• Plan Check fees have to be paid at the time of Submittal• Plans are distributed to all reviewers (Structural and Electrical) 6
  120. 120. Development Services Department Division of Building, Safety & Construction Over-the-Counter by Appointment 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 7
  121. 121. Development Services Department Division of Building, Safety & Construction Master Plans Establish Master Plan  Submit Plans on Third Floor of DSC  10-Day Review  Fee - Hourly Plan Check Only 8
  122. 122. Development Services Department Division of Building, Safety & Construction Master Plan Installations Per Established Master Plan  Site Plan  Issued Over-the-Counter at Screening (3rd Floor, DSC)  Fees • Issuance • Records • Permit Fee 9
  123. 123. Development Services Department Division of Building, Safety & Construction Rechecks By Appointment with the reviewer Walk-In, Over-the-Counter  Electrical Counter (3rd Floor, DSC) 10
  124. 124. Development Services Department Division of Building, Safety & Construction Issuance By Appointment with the Issuance staff Walk-In Over-the-Counter Third floor DSC Permit fees 11
  125. 125. Development Services Department Division of Building, Construction and Safety Solar Photovoltaic Plan Review Process• Complying Template Projects – Roof Mounted SFD 12
  126. 126. Development Services Department Division of Building, Construction and SafetyDSD Residential Plan Template for Solar Photovoltaic• The Purpose is to reduce plan review time by: – Establishing a standard format and layout – Suggesting standard notes 13
  127. 127. Development Services Department Division of Building, Construction and Safety General Project•Residential PV Template Information Notes for each page on the right-hand side of the page Plans need to be in a simple legible format (11” X 17”) 14
  128. 128. Development Services Department Division of Building, Construction and Safety PV Company Name•Residential PV Template & Logo Designer Name Signature License # Project Location 15
  129. 129. Development Services Department Division of Building, Construction and Safety Notes font large•Residential PV Template enough to be legible Identify Property Lines Page Reference 16
  130. 130. Development Services Department Division of Building, Construction and Safety•Residential PV Template Locate Building ,Plumbing Array layout custom and Mechanical Vents to each project showing the number of modules 17
  131. 131. Development Services Department Division of Building, Construction and Safety•Residential PV Template 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. 18
  132. 132. Development Services Department Division of Building, Construction and Safety•Residential PV TemplateShow Meter Location Show Inverter Location 19
  133. 133. Development Services Department Division of Building, Construction and Safety•Residential PV Template Structural calculations are required for the roof or structure mounted PV systems if the weight of the PV system exceeds five pounds per square foot. 20
  134. 134. Development Services Department Division of Building, Construction and Safety•Residential PV TemplateRoof Framing and the Rack lay out Typical Detail to show the attachment Provide a Water Proofing Detail 21
  135. 135. Development Services Department Division of Building, Construction and Safety •Residential PV Template Single LineShow the module Identify the wire typemanufactures name and sizeand the modelnumber Show the number of modules per string and the number of strings per system 22
  136. 136. Development Services Department Division of Building, Construction and SafetyResidential PV Template Single Line Identify the wire type, and size Identify the conduit type, and size 23
  137. 137. Development Services Department Division of Building, Construction and Safety Residential PV Template Single LineShow the invertermanufactures nameand the model Identify the wire typenumber and size Identify the conduit type and size 24
  138. 138. Development Services Department Division of Building, Construction and SafetyResidential PV Template Single Line If a combiner box is used identify the ampere rating of the bus and OCP 25
  139. 139. Development Services Department Division of Building, Construction and SafetyResidential PV Template Single Line Identify the ampere rating of the bus, main breaker and back-fed PV breaker 26
  140. 140. Development Services Department Division of Building, Construction and SafetyResidential PV Template Single Line If micro inverter system is installed show the module manufactures name and the model number Systems with micro inverters need to show disconnects in compliance with (CEC 609.14 (D)) 27
  141. 141. Development Services Department Division of Building, Construction and SafetyResidential PV Template Single Line Identify DC and AC disconnects and where fuses are required show the ampere rating of the fuses 28
  142. 142. Development Services Department Division of Building, Construction and Safety Residential PV Template – Manufacturer Information SheetsInclude 8.5” by 11” Verify that allcopies of the components areManufacturer’s listed by a Nationallyspecifications Recognized Testing Laboratory for the intended use. 29
  143. 143. Development Services Department Division of Building, Construction and Safety Technical Data Module Info Inverter InfoIdentify the short circuit current (Isc) and the open circuit voltage (Voc). 30
  144. 144. Development Services Department Division of Building, Construction and SafetyDSD Residential Plan Template for Solar Photovoltaic QUESTIONS? 31
  145. 145. Development Services Department Division of Building, Construction and SafetyInspection Guidelines and Suggested Practices
  146. 146. Development Services Department Division of Building, Construction and Safety Inspection Process• To verify that the installation is in conformance with the design of the approved set of plans• To verify that the installation is in compliance with the California Electrical Code and other applicable codes and regulations
  147. 147. Development Services Department Division of Building, Construction and Safety Purpose of the Code“….the practical safeguarding ofpersons and property fromhazards arising from the use ofelectricity”
  148. 148. Development Services Department Division of Building, Construction and Safety 2010 California Electrical Code• 2008 National Electrical Code• with amendments from State agencies• California Code of Regulations,• Title 24, Part 3• Effective date – January 1, 2011
  149. 149. Development Services Department Division of Building, Construction and Safety Inspection Process• Contractor/owner responsibility to schedule and coordinate all required inspections• Responsible party on site• Provide access to all elements of system installation
  150. 150. Development Services Department Division of Building, Construction and Safety Inspection• Ground-mounted 1. footings for array frame 2. underground raceways 3. final Observe regulations for - Brush Management Zones, Environmentally Sensitive Lands, and Multiple Habitat Planning Areas
  151. 151. Development Services Department Division of Building, Construction and Safety Inspection (continued)• Roof mounted arrays Rough electrical (for any concealed work) Roof array and bond (for integrated systems or for tile roofs) Final inspection
  152. 152. Development Services Department Division of Building, Construction and SafetyNecessary Paperwork on Site• Approved plans• Inspection record card (DS-1798)• Manufacturer’s Installation instructions – modules, racking, inverter
  153. 153. Development Services DepartmentDivision of Building, Construction and Safety
  154. 154. Development Services Department Division of Building, Construction and SafetyInstallation manuals – inverters, modules
  155. 155. Development Services Department Division of Building, Construction and SafetyRoof Mounted Systems
  156. 156. Development Services Department Division of Building, Construction and Safety Roof Access• Cal -OSHA Compliant Ladder• Sitting squarely on level surface• Secured at top
  157. 157. Development Services DepartmentDivision of Building, Construction and Safety 44
  158. 158. Development Services DepartmentDivision of Building, Construction and Safety 45
  159. 159. Development Services DepartmentDivision of Building, Construction and Safety Tile roofs
  160. 160. Development Services DepartmentDivision of Building, Construction and Safety 47
  161. 161. Building Integrated Safety Development Services Department Division of Building, Construction and PV
  162. 162. Development Services DepartmentDivision of Building, Construction and Safety 49
  163. 163. Development Services DepartmentDivision of Building, Construction and Safety 50
  164. 164. Development Services DepartmentDivision of Building, Construction and Safety 51
  165. 165. Development Services DepartmentDivision of Building, Construction and Safety 52
  166. 166. Development Services DepartmentDivision of Building, Construction and Safety Micro-inverters 53
  167. 167. Development Services DepartmentDivision of Building, Construction and Safety Other Systems 54
  168. 168. Development Services DepartmentDivision of Building, Construction and Safety Other Systems 55
  169. 169. Development Services DepartmentDivision of Building, Construction and SafetyRacking Installation
  170. 170. Development Services Department Division of Building, Construction and SafetyRacking system and grounding 57
  171. 171. Flashing and Weather and Safety Protection Development Services Department Division of Building, Construction
  172. 172. Development Services DepartmentDivision of Building, Construction and Safety Properly flashed and sealed Rolled roofing penetration 59
  173. 173. Development Services DepartmentDivision of Building, Construction and Safety Clearance to Vents
  174. 174. Development Services DepartmentDivision of Building, Construction and Safety 61
  175. 175. Development Services Department Division of Building, Construction and SafetyPlumbing Vents•Plumbing vents cannot be coveredby module installation•Vents shall terminate a minimumof•6” above or 1’ away horizontallyfrom adjacent PV modules•Termination shall not be higherthat the highest point of the existingroof•Vents less than 3” can beextended /offset but shall beproperly and independentlysupported•All extensions shall meet therequirements of the CaliforniaPlumbing Code•Extension on any plumbing vent 3”diameter or larger is not allowed 62
  176. 176. Development Services Department Division of Building, Construction and SafetyUsing Identified grounding points and approved devices and materials
  177. 177. Development Services Department Division of Building, Construction and SafetyUnapproved Grounding MeansNot approved – braided copper with sheet metal screw into themodule frame 64
  178. 178. Development Services DepartmentDivision of Building, Construction and Safety 65
  179. 179. Development Services Department Division of Building, Construction and SafetyCombiner Boxes, Junction Boxes and Wiring Methods • Listed equipment • Installed per manufacturers installation instructions • Cable Management • Conduit support
  180. 180. Development Services Department Division of Building, Construction and SafetyCombiner boxes, wiring methodCombiner boxes shall be listedInstalled per the manufacturer’s instructions
  181. 181. Development Services DepartmentDivision of Building, Construction and Safety 68
  182. 182. Development Services DepartmentDivision of Building, Construction and Safety 69
  183. 183. Development Services DepartmentDivision of Building, Construction and Safety Conduit support
  184. 184. Development Services DepartmentDivision of Building, Construction and Safety Conduit Support 71
  185. 185. Development Services Department Division of Building, Construction and SafetyWiring methods and materials
  186. 186. Development Services DepartmentDivision of Building, Construction and Safety 73
  187. 187. Development Services DepartmentDivision of Building, Construction and Safety 74
  188. 188. Development Services DepartmentDivision of Building, Construction and Safety 75
  189. 189. Development Services DepartmentDivision of Building, Construction and Safety PV Wire 76
  190. 190. Development Services DepartmentDivision of Building, Construction and Safety Cable Management
  191. 191. Development Services Department Division of Building, Construction and Safety Conductor De-rating• Derating for conductor ampacity is required per new Table 310.15(B)(2)• Use the ASHRAE tables for the ambient temperature used for the correction factor• Air inside the raceway is significantly hotter than the surrounding air
  192. 192. Development Services DepartmentDivision of Building, Construction and Safety
  193. 193. Development Services Department Division of Building, Construction and SafetyInverters and DC Disconnects• Listed utility interactive inverters• As-built conforms to the design• Installed per manufacturer’s installation instructions or recommendations• System grounding electrode conductor properly terminated
  194. 194. Development Services Department Division of Building, Construction and SafetyListed Utility-Interactive Inverter
  195. 195. Development Services DepartmentDivision of Building, Construction and Safety 82
  196. 196. Development Services Department Division of Building, Construction and SafetyConductor terminations
  197. 197. Development Services DepartmentDivision of Building, Construction and Safety Inverter locations
  198. 198. Development Services Department Division of Building, Construction and Safety Service Equipment• bus rating• existing main overcurrent protection• PV overcurrent protection• manufacturer breakers• cable or conduit entry• labeling• multiwire branch circuit relocation and balanced load on bus• grounding system
  199. 199. Development Services DepartmentDivision of Building, Construction and Safety
  200. 200. Development Services Department Division of Building, Construction and Safety EXISTING PanelWhat’s the rating of the bus? Total Sum of the Over-currentDevices Permitted 87
  201. 201. Development Services DepartmentDivision of Building, Construction and Safety 400 Amp Panel – 400 Amp Bus? 88
  202. 202. Development Services DepartmentDivision of Building, Construction and Safety 89
  203. 203. Development Services DepartmentDivision of Building, Construction and Safety 90
  204. 204. Development Services Department Division of Building, Construction and Safety PV breakers and new andexisting multi-wire circuits
  205. 205. Development Services Department Division of Building, Construction and Safety Service Upgrades involvingScheduled 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
  206. 206. Development Services Department Division of Building, Construction and SafetyReady for reconnection?
  207. 207. Development Services DepartmentDivision of Building, Construction and Safety BNL 14-1 – How to Install Flashing 94
  208. 208. Development Services Department Division of Building, Construction and Safety Grounding• Verify acceptable grounding for existing service equipment or provide a supplemental electrode• Provide service and system grounding compliant with the Code
  209. 209. Development Services DepartmentDivision of Building, Construction and Safety
  210. 210. Development Services Department Division of Building, Construction and SafetyWater piping ground must be supplemented
  211. 211. Development Services Department Driven Ground RodDivision of Building, Construction and Safety
  212. 212. Development Services Department Division of Building, Construction and Safety Irreversible Splicing Devices• For grounding electrode conductors• Micro-inverter installations - #8 or #6 Cu system grounding conductors 99
  213. 213. Development Services Department Division of Building, Construction and SafetyDC and AC wiring through a structure 100
  214. 214. Development Services Department Division of Building, Construction and SafetyCAUTION – Notching and 101Boring Wood Members
  215. 215. Development Services Department Division of Building, Construction and SafetyLoad-bearing 2 x 12 floor joists @ 12” OCnotched in middle 1/3 of span 102
  216. 216. Development Services DepartmentDivision of Building, Construction and Safety 103
  217. 217. Development Services Department Division of Building, Construction and SafetyProperly fire stop around all penetrations ofrated assemblies 104
  218. 218. Development Services Department Division of Building, Construction and SafetyFire-resistive Exit Enclosures and Passageways 105
  219. 219. Development Services Department Division of Building, Construction and Safety Signage and Placarding• Alternate power source placard• DC raceways and DC disconnects• Cautionary• Site specific design• PV disconnect for utility operation
  220. 220. Development Services Department Division of Building, Construction and SafetyAlternate Power Source Placard
  221. 221. Development Services DepartmentDivision of Building, Construction and Safety 108
  222. 222. Development Services DepartmentDivision of Building, Construction and Safety
  223. 223. Development Services DepartmentDivision of Building, Construction and Safety
  224. 224. Development Services DepartmentDivision of Building, Construction and Safety 111
  225. 225. Development Services DepartmentDivision of Building, Construction and Safety
  226. 226. Development Services Department Division of Building, Construction and Safety Suggested practices• Survey the site – verify the adequacy and condition of the existing electrical system to accommodate a PV system• A service upgrade or other corrections may be required
  227. 227. Development Services Department Division of Building, Construction and SafetyInadequate work space
  228. 228. Development Services DepartmentDivision of Building, Construction and Safety 115
  229. 229. Development Services Department Division of Building, Construction and SafetyService Disconnects – Maximum Six Handles without a Main Disconnect
  230. 230. ExistingofService Department Development Services Division Entrance Building, Construction and Safety
  231. 231. Development Services DepartmentDivision of Building, Construction and Safety Existing service
  232. 232. Development Services Department Division of Building, Construction and SafetyService supplied by SIDA cable
  233. 233. Development Services Department Division of Building, Construction and SafetyAlternativeEnergySystemsinstalled withsafeguardinglife andproperty inmind
  234. 234. Development Services Department Division of Building, Construction and Safety Resources• Photovoltaic Systems, 2nd ed. Dunlop• IAEI News (www.iaei.org)• IREC (www.IRECUSA.org) Field Inspection Guidelines for PV Systems (Brooks Eng’g)• Photovoltaic Power Systems: Suggested Practices, Southwest Technology Development Institute , NMSU(John Wiles)• NEC Handbooks - NFPA• NFPA’s NEC Plus• City of San Diego Inspection Guidelines 121
  235. 235. Development Services DepartmentDivision of Building, Construction and SafetyQuestions?

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