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a ExprDITEn PTRMIT PROCESS FOR SIrnnI-I-SCALE PV Sysre uS MIcRo-INVERTER The information in this guideline is intended to help local jurisdictions and contractors identify when PV system insmllations are simple, needing only a basic review and when an installation is more complex. It is likely that 50%-75% of all residential systems will comply with these simple criteria. For projects that fail to meet the simple criteria, resolution steps have been suggested to provide as a path to permit approval. Require d Infoxmati on for Permit : l. Site plan showing location of major components on the property. This drawing need not be exactly to scale, but it should represent relative location of components at site (see supplied example site plan). PV arrays on dwellings with a 3' perimeter space at ridge and sides may not need separate fire service review. 2. Electrical diagram showing PV array conhguration, wiring system, overcurrent protection, inverter, disconnects, required signs, and ac connection to building (see supplied standard electrical diagram). 3. Specification sheets and installation manuals (if available) for all manufactured components including, but not limited to, PV modules, inverter(s), combiner box, disconnects, and mounting sysrem. Step 1 : Structural Review of PV Array Mounting System Is the array to be mounted on a defined, permitted roof structuref Eyes nno IJ No due to non-compltant rooJ or a ground mount, submit completedworksheetJor the structure WI(S/. Roof Information: 1. Is the roohng type lightweight lYes = composition, lightweight masonry, metal, etc.) ASPHALT SHINGLE If No,submitcompletedworksheetJorroof structureWKSI (No = heavymasonryslate,etc...). 2. Does the roof have a single roof coveringr Elyes Eno If No, submit completedworksheetJor roof structure WRSI. 3. Provide method and type of weatherproofing roof penetrations (e.9. flashing, caulk)FLASHING AND CAULKING Mounting Sy stem InJormation: I . Is the mounting structure an ggineered product designed to mount PV modules with no more than an 18" gap beneath the module frames? l{Jyes LJno If No, provide details of structural atta.chment certified by a design professional. 2. For manufactured mounting systems, fill out information on the mounting system below: a. Mounting System Manufacturer sor-ARwAREHousE Product Name and Model#L-FEET KrT (MR-SW-FL-1210HB) b. Total Weight of PV Modules and Rails 1085.8 bs c. Total Number of Attachment Points 50 d. Weighr per Attachment Point (b+c)22 lbs (if grearer rhan 45 lbs, see WKSI) e. Maximum Spacing Between Attachment Points on a Rail 48 nches (see product manual for maximum spacing allowed based on maximum design wind speed) f. Total Surface Area of PV Modules (square feet) 424-9 tU e. Distributed Weight of PV Module on Roof (b + D 2'6 ,Orrt,' IJ distributedweight of the PV system is grcater than 5lbsfff , see WI(S,. Step 2: Electrical Review of PV System (Calculations [or Electrical Diagram) In order for a PV system to be considered for an expedited permit process, the following must apply: l. PV modules, utility-interactive inverters, and combiner boxes are identified for use in PV systems. 2. The PV array is composed of 4 series strings or less per inverter. 3. The total inverter capacity has a continuous ac power output 13,44O Watts or less 4. The ac interconnection point is on the load side of service disconnecting means (690.64(8)). 5. One of the standard electrical diagrams (El.l, El.la, El.lb, or El.lc) can be used to accurately represent the PV system. Interactive PDF diagrams are available at www.solarabcs.org/permirting. I:ill ottt the standarcl electrical diagrant cornpletely A guide to the electrical diagratn is provided to help the applicanf understund each blank to,fill in. lf the electrical system is more conytlex than the standard electrical diagt'am can effectively communicate. provide an alternattve diaEam with appropriate detail. 2 tXI'EDI'I'ID I)I.RMII' PROCESS l'OR PV SYSI^EMS - N4IC]I(O- INVEruI TR