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EXPEDITED PERMIT PROCESS FOR SMALL.SCALE PV SYSTEMS MICRO-INVERTER The information in this guideline is intended to help local jurisdic(ions and conrracrors idenrify when pv sysrem insrallarions are simple, needing only a basic review and when an installation is more complex. Ir is likely thar 50 % -75% of all residenrial systems will comply with lhese simple criteria. For proJects thar fail to meer the simple criteria. resolution steps have been suggested to provide as a parh ro permir approval. Requited Infomatiotl lor Permit: I Site plan showing location of major components on the property. This drawing need nor be exacrly ro scale. bur ir should represenr relarive locarion of componenrs ar site (see supplied example sire plan). pV arrays on dwellings with a S perimeter space at ridge and sides may not need separate hre service review. 2 Electrical diagram showing PV array configuration, wiring system, overcurrent protection. inverter. disconnects. required signs, and ac connecrion ro building (see supplied srandard elecrrical diagram). 3. Specihcation sheers and inshllation manuals (if available) for all manufactured components including, but nor Iimited to. PV modules. inverrer(s). combiner box. disconnects, and mounting sysrem. Step 1 : Structural Review o[ PV Anay Mounting System ls the array to be mounted on a defrned, permitted rcof sructurc? Eyes Effo I No due to non-compliant rool or a ground. mount. submit completed worksheet lor the structure wKSl . RooJ InJormation: l. Is the roofing rype lighrweighr ryes = composirion. lighrweighr masonry meral. erc. .)Yes IJ No, submit completed worhsheet jor roof stucture WKSI (No = heavy masonry, slate, etc. . .) 2. Does the roof have a single roof covering? Elye" !No II No, submit completed worksheet Ior rool structure WKSI. 3. Provide method and rype of wearherproofrng roof penerrarions (e.9. flashing, caulk)F lashing M ounting Sy st em Inforlnation : L Is the mounting srructure an beneath the module frames? en ineered producr designed to mount PV modules with no more rhan an I8 gap Yes tr No U No, provide details oJ stuctural attachmmt cerdrted by a design proJessionat. 2. For manufacrured mounting systems, hll out information on the mounting system below a. Mounring system Manufacturer SWH producr Name and Mo6"lxSolar Mount b. Total Weigh t of Pv Modules and Rails 1104 lbs c. Total Number of Attachment Poinr 38 d Weighr per Arrachmenr Poinr (b + c)29.0s bs (if greater than 45 lbs, see WKS I ) e Maximum Spacing Between Attachmenr Points on a Pail 72 rnches (see producr manual for maximum spacing allowed based on maximum design wind speed) f. Toul Surface Area of PV Modules (square feer)423.58 fr'] g. Distribured Weighr of PV Module on Roof (b + l)2.62 lbs/ft'? II distributed weight of the PV rystem is greater than 5 lbste , see Wt<51 . Step 2: Electrical Review o[ PV System (Calculations lor Electrical Diagram) In order for a PV s!.stem b be considered for an expediEd permlt pmcess, the fofiowing must apply: l. PV modules, urility-interactive inverlers, and combiner boxes are identihed for use in pV systems. 2. The PV array is composed of 4 series strings or less per invener. 3. The toral inverter capacify has a continuous ac power output l i,44O Watts or less 4. The ac interconnection poinr is on the load side of service disconnecring means (690.64(8)). 5. one of the sundard electrical diagrams (E L I . E L I a. E I I b, or E L I c) can be used to accurately represenr rhe pV system. Interactive PDF diagrams are available at www.solarabcs.org/permifting. Fill out the standdrd electrical diagram completely. A guide to the electricot diagram is provided to help the appticant understand each blanh to ill in. If the electrical q/stan is more complex than the standard etectrical diag:ram can ellectiyely communicate, provide an alternatiye diagram with aryropiate detail. 2 lXPEDITED PERMIT PROCESS FOR PV SYSTEMS - MICRO-INVERTER