Expedited Permit Process for PV Systems 6

Expedited Permit Process for PV Systems

The Solar America Board for Codes and Standards (Solar ABCs) Expedited Permit Pro-cess provides a means to differentiate systems that can be permitted quickly and easily due to their similarity with the majority of small-scale PV systems. Those systems with unique characteristics may be handled with small additions to this Expedited Permit Process or may require much more information, depending on the uniqueness of the installation.

The following pages contain forms to use with the Expedited Permit Process. The forms are available as interactive PDF files at www.solarabcs.org/permitting. In jurisdictionsthat have adopted the Expedited Permit Process for PV Systems, these forms can be filled out electronically and submitted in either printed form and via email. An electronic format is used so that the supplied information is standardized and legible for the local jurisdiction.

7Solar America Board for Codes and Standards Report

Expedited Permit Process for Small-Scale PV SystemsThe information in this guideline is intended to help local jurisdictions and contractors identify when PV system installations 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.

Required Information for Permit:

1. 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 configuration, 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 system.

Step 1: Structural Review of PV Array Mounting SystemIs the array to be mounted on a defined, permitted roof structure? l Yes l NoIf No due to non-compliant roof or a ground mount, submit completed worksheet for the structure WKS1.

Roof Information:

1. Is the roofing type lightweight (Yes = composition, lightweight masonry, metal, etc…)____________If No, submit completed worksheet for roof structure WKS1 (No = heavy masonry, slate, etc…).

2. Does the roof have a single roof covering? l Yes l NoIf No, submit completed worksheet for roof structure WKS1.

3. Provide method and type of weatherproofing roof penetrations (e.g. flashing, caulk).____________

Mounting System Information:

1. Is the mounting structure an engineered product designed to mount PV modules with no more than an 18” gap beneath the module frames? l Yes l No

If No, provide details of structural attachment certified by a design professional.

2. For manufactured mounting systems, fill out information on the mounting system below:

a. Mounting System Manufacturer ___________Product Name and Model#_____________

b. Total Weight of PV Modules and Rails ___________lbs

c. Total Number of Attachment Points____________

d. Weight per Attachment Point (b÷c)_________________lbs (if greater than 45 lbs, see WKS1)

e. Maximum Spacing Between Attachment Points on a Rail ______________inches (see product manual for maximum spacing allowed based on maximum design wind speed)

f. Total Surface Area of PV Modules (square feet)_________________ ft2

g. Distributed Weight of PV Module on Roof (b÷f)_______________ lbs/ft2

If distributed weight of the PV system is greater than 5 lbs/ft2, see WKS1.

Step 2: Electrical Review of PV System (Calculations for Electrical Diagram)In order for a PV system to be considered for an expedited permit process, the following must apply:

1. 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 13,440 Watts or less4. The ac interconnection point is on the load side of service disconnecting means (690.64(B)).5. One of the standard electrical diagrams (E1.1, E1.1a, E1.1b, or E1.1c) can be used to accurately represent the PV

system. Interactive PDF diagrams are available at www.solarabcs.org/permitting.

Fill out the standard electrical diagram completely. A guide to the electrical diagram is provided to help the applicant understand each blank to fill in. If the electrical system is more complex than the standard electrical diagram can effectively communicate, provide an alternative diagram with appropriate detail.

Expedited Permit Process for PV Systems 8

Site Plan

9Solar America Board for Codes and Standards Report

Site Plan

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Expedited Permit Process for PV Systems 10

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____________________________________________________________________

Notes for O

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