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Course Title
100 Home
101 Introduction
102 FAQ Page
103 Course Catalog
104 Green World
105 Demand & Supply
106 Conservation Careers
107 Solar Careers
108 Wind Turbine Careers
109 Entrepreneurs
110 Employee or Employer?
200 Demand Management
201 Summary
202 Residential Energy Profile
203 Ten Conservation Rules
204 HVAC System
205 Kitchen Appliances
206 Water Heater
207 Lighting
208 Laundry Appliances
209 Calculating Savings
300 Renewable Technology
301 Solar Energy
302 Solar Collectors
303 Solar Water Heating
304 Stirling Engines
305 Basic AC-DC Electronics
306 Silicon Solar Panels
307 Thin Film Solar Panels
308 Wind Turbines
309 Inverters
310 Grid Tied and Off Grid
311 Solar Site Survey
312 Solar Site Diagram
313 Sun Path Chart
314 Site Survey Worksheet
315 Wind Turbine Site Survey
316 Wind Turbine Worksheet
400 Solar Thermal Design
401 Solar Heat Overview
402 System Configuration
403 Site Survey
404 SRCC Compliance
405 System Specification
406 Bill of Materials
407 System Installation
408 Solar Heat Incentives
409 Document Package
410 Future Products
500 Solar PV Design
501 Solar PV Overview
502 System Configuration
503 Site Survey
504 Grid Tied & Off Grid
505 System Specification
506 Bill of Materials
507 System Installation
508 Solar PV Incentives
509 Document Package
510 Future Products
600 Wind Turbine Design
601 Wind Turbine Overview
602 System Configuration
603 Site Survey
604 Grid Tied and Off Grid
605 System Specification
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Green Collar Careers - Solar PV Bill of Materials

The Solar Site Survey workbook includes two worksheets for Solar PV materials:

  • Solar PV BOM - identifies the primary electronic materials
  • Solar PV Interconnect Table - identifies cables and lengths
  • Solar PV Mounting Rack - identifies the mounting and racking materials

Solar PV BOM
After you've finished the Site Survey and selected the kit you'll be using, input the specific materials included in the kit in the Solar PV BOM.  Make sure that all utility specified and/or approved material requirements are met.

Solar PV Interconnect Table
Cable Route Lengths should have been identified during the Solar Site Survey.  After you've selected the Kit and have identified the number of panels and the voltage of the panels you'll need to determine how many sets of panels will need to be wired in series (panel to panel) and how many parallel runs will need to be made to the Combiner Box.  What you'll be doing is matching the DC Voltage input requirements for the Inverter while maintaining the most effective (and safe) use of wire between the PV Panels and the Combiner Box.

First we'll make this point; the longer the run, the lower the allowable current that a wire can carry.  Due to the cost of the connectorized PV panel cables it is strongly recommended to mount the Combiner Box as close to the PV Panels as possible.  If this is on a roof top, mount the Combiner Box in the attic at the closest safe point to mount it.  If using a ground mounted rack system, mount the Combiner Box under one of the panels and protected from the weather.  Not all Combiner Boxes are Outdoor rated.  If the Combiner Box is not outdoor rated mount it inside an Outdoor rated power box panel with door available from your local building supply store.

Solar PV Mounting Rack
After you've completed the sketch for the rack & mounting system insert the materials in the Solar PV Mounting Rack BOM.
Solar Mounting Rack is usually erected from modular extruded aluminum channels.


End of a typical rail channel.  Note the grooves where the square channel nut fits in to adjust to the span length required to mount the solar PV panel.


Square channel nut used to slide in the channel groove.


Rail channels can be mounted with threaded rod to set positions as required.