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EXPEDITED PERMIT PROCESS FOR SMALL-SCALE PV SYSTEMS <br />STANDARD STRING SYSTEM <br />The information in this guideline is intended to help local jurisdictions and contractors identify when PV system installarions <br />are simple. needing only a basic review and when an insmllation is more complex. lt is likely that 50%-75% of all residenrial <br />systems will comply with these simple criteria. For projects that fail to meet the simple criteria, resolution steps have been <br />suggested to provide as a path to permit approval. <br />Reqrired Information fot Peflnit: <br />I Site plan showing location of major components on the property. This drawing need not be exactly ro scale, but ir <br />should represent relative location of components at site (see supplied example site plan). Pv arrays on dwellings <br />with a S perimeter space at ridge and sides may no[ need separate frre service review <br />2. Electrical diagram showing PV array configuration, wiring system. overcurrent protection. inverte( disconnects, <br />required signs, and ac connection to building (see supplied standard electrical diagram). <br />3. Specihcation sheets and insmllation manuals (if available) for all manufactured components including, bur not <br />limired to, Pv modules, inverter(s). combiner box, disconnects, and mounting system. <br />Step I : Structural Review o[ PV Array Mounting System <br />Is the array to be mounted on a dehned, permitted roof sructure? Ey"" Effo <br />U No due to non-compliant rco.f or a ground mount, submit completed worksheet.for the structure wKSl. <br />Roof Inform ion: <br />L Is rhe roofrng type lightweight (Yes = composition. Iightweight masonry. metal. etc. ..)YES <br />Il No, submit completed worksheet Jor rooJ structure WXSI (No = heavy masonry, slate, etc.. ) <br />2 Does rhe roof have a single rooF coveringz Eyes E r,lo <br />IJ No, submit completed worhsheet Jor rooJ structure WXSI. <br />3. Provide method and type of weatherproohng roof penetrations (e.g. flashing, caulk)Flashing, geocell sealant <br />M ount ing Sy s t em I nfo nnation : <br />l. ls the mounting structure an enqrneered product designed to mount PV modules with no more lhan an l8' gap <br />benearh rhe module frames? EIv"" E lio <br />U No, provide details ol structural cttachment certijed W a design proJessional. <br />2 For manufactured mounling systems, nll out information on the mounring system below: <br />a. Mounting Sys tem N4anufacturer ZeP producr Name and 14o6"19 Comp Mounl Type C <br />b. Total Weigh t of PV Modules and Rails 702 bs <br />c. Total Number of Attachment Poin t. 31 <br />d. Weight per Attachment Point (b + c)22.65 bs (if greater than 45 lbs, see WKS I ) <br />Maximum Spacing Between Attachment Points on a Rail 48 inches (see product manual for <br />maximum spacing allowed based on maximum design wind speed) <br />f. Total Surface Area of PV Modules (square feel)234 <br />g Distributed Weight of PV Module on Roof (b + f)3.0 lbs/frr <br />IJ distributed weight oJ the Pv system is greater than 5 lbstf, see wKSl . <br />Step 2: Electrical Review of PV System (Calculations lor Electrical Diagram) <br />In order for a PV system to be considered for an expedited permit pmcess, the following must apply: <br />I PV modules, utility-interactive inverters. and combiner boxes are identifred tor use in PV sysrems. <br />2. The PV array is composed of 4 series strings or less per inverter. <br />3 The total inverter capacity has a conlinuous ac power output 13,440 Watts or less <br />4. The ac interconnection point is on the load side of service disconnecting means (690.64(8)). <br />5. One ofthe standard electrical diagrams (El.l, El.l a, El.lb, or El.lc) can be used to accurately represent the PV <br />system. lnteractive PDF diagrams are available at www.solarabcs.org/permitting. <br />Fill out the stondard electrical diagram completely. A guide to the electricol diagram is provided to help the applicant <br />understand each blank tolll in. If the electical syitem is more complex than the staldard electrical diagram can elfectively <br />communicate, provide an alternative diagram with aryropriate detail. <br />2 ExpEDrrED PERMri PRocEss FoR PV sysrEMs <br />e