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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 - Fabricating a Solar Survey Transit

Home Made Transit

Using a  video tripod with a center post or removable head it can be can converted in into a Solar Survey Transit for determining sun azimuth / direction and elevation / altitude paths.

Materials needed:

  • Video tripod with removable rotating head ($30)
  • Abney Level  ($40)
  • Round 360 4-6" diameter Protractor with solid center ($5)
  • 3" diameter margarine tub lid
  • Two 1-1/4" inner diameter flat washers (just large enough to fit over stem)


  1. Remove the rotating head from the tripod.
  2. Drill a hole dead center in the protractor just large enough to slide over the tripod head stem
  3. Drill a hole dead center in the margarine tub lid just large enough to slide over the tripod head stem
  4. Trim the outside of the margarine tub lid just enough that the protractor scale can be read
  5. Install the first washer on the stem
  6. Install the protractor on the stem
  7. Install the margarine tub lid on the stem
  8. Install the second washer on the stem
  9. Reassemble the head with the protractor pieces fixed to the stem
  10. Mount the Abney Level on the camera mounting screw

The stem height should be set so it slightly binds the protractor.  You will rotate the protractor to calibrate 0 to magnetic north using the compass.  It will later be reset to true north for the survey.

Chances are there will be steel parts in the tripod that may affect a compass reading.  Check alignment to magnetic north with the compass at least 10 feet away then move closer to the tripod to see where/if any changes begin to occur.