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EXPEDITED PERMIT PROCESS FOR SMALL-SCALE PV SYSTEMS <br />MICRo-INVERTER <br />The information in this guideline is inrended to help local jurisdictions and conrracrors identify when PV sysrem inshllarions <br />are simple. needing only a basic review and when an insEllation is more complex. lt is likely rhar 50%-75% of all residenrial <br />systems will comply wirh these simple fiiteria. For projects that fail to meet rhe simple crireria, resolurion steps have been <br />suggested to provide as a path to permit approval. <br />Reqireil InJotmation for Pennit: <br />L Site plan showing location of major components on the property. This drawing need not be exactly ro scale. but it <br />should represent relative location of components ar site (see supplied example site plan). PV arrays on dwellings <br />wirh a 3'perimeter space ar ridge and sides may not need separate hre service review. <br />2. Electrical diagram showing PV array confrgurarion. wrring sysrem, overcurrent protection, inverte( disconnects. <br />required signs, and ac connection to building (see supplied s6ndard elecrrical diagram). <br />f. Specification sheets and inshllation manuals (if available) for all manufacrured componenrs including, bur not <br />limited to. PV modules, inverter(s), combiner box. disconnecrs, and mounting system. <br />Step 1 : Structural Review o[ PV Array Mounting System <br />Is the array to be mounted on a defrned, permitted roof structurc?ves lno <br />U No due to non-compliant roof or a grcund mount, submit completed. u/orhsheet Jor the structure WNSI <br />Roof Infonnntion: <br />L Is the roohng type Iighrweighr (Yes = composirion. lighrweighr masonry metal. erc Yes <br />IJNo, submit completed worhsheet lor rooJ strucntre WfiSl (TVo = heayy masonry, slate, etc...) <br />2. Does the roof have a single roof covering?ves E r.,to <br />U No, submit completed worhsheet Jor rcof s ucture WNSI <br />3. Provide method and type of wearherproofing roof penerrarions (e.g. flashing, caulk)Flashing <br />M ounting Ey stern InJormation : <br />L Is rhe mounting strucrure an glgineered product desrgned rc mount PV modules wirh no more rhan an 18" gap <br />beneath rhe module frames? [:] Yes LJNo <br />Il No , ptovide details of structural attachment certified fut a design proJessional. <br />2 For manufactured mounting sysrems, frll out inFormation on rhe mounting system below: <br />a. Mounting sysrem Manufacturer SWH Product Name and L4o6"11Solar Mount <br />b. Toral weighr of Pv Modules and Rails 1242 lbs <br />c. Total Number of Attachment Points 42 <br />d. Weight per Attachment Point (b+c) 2957 lbs (if greater than 45 lbs,seeWKSl) <br />e. Maximum Spacing Between Attachment Points on a Rail 72 inches (see produc( manual for <br />maximum spacing allowed based on maximum design wind speed) <br />f. Total Surface Area of Pv Modules (square feet) 476.53 ft'? <br />g. Distributed weighr of PV Module on Roof (b + 0 2.61 lbs/ft, <br />IJ distributed weight ol the PV system k g:reater than 5 lbste, see WXSt . <br />Step 2: Electrical Review o[ PV System (Calculations lor Electrical Diagram) <br />In order for a PV system to be considercd for an expedited permit process, the following must apply: <br />1. PV modules, utility-interac(ive inverters, and combiner boxes are identiied for use in PV systems. <br />2. The Pv array is composed of 4 series srrings or less per inverrer. <br />f. The lotal inverter capacity has a continuous ac power output 13.440 Watts or less <br />4. The ac interconnectron point is on the load side of service disconnecting means (690.64(8)). <br />5. One ofthe standard electrical diagrams(E1.1, El.la, El.lb.orEl.lc) can be used to accurately represenr rhe PV <br />system. lnteractive PDF diagrams are available at www.solarabcs.org/permitting. <br />Filt out the stand.ord, electricdt diagram convletely. A guide to the electrical diagram is provided to help the awlicant <br />understand each blank to fU in. II the electrical system is morc complea than the standard electrical diag'am can efJecttyely <br />communicate, provide an alternative diagaam with aryopiate d.etail. <br />2 ExpEDrrED PERMIT PRocEss FoR PV sysrrMs - MIcRo-INVERTER