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[[http://www.sunreign.com/info/ProjectDonate Donate]]
[[http://www.sunreign.com/info/ParabolicTrough ParabolicTrough.org]]
[[http://www.sunreign.com/info/SolarBowl SolarBowl.org]]
[[http://www.buildingcsp.com BuildingCSP]]

=====Solar Trackers and Heliostats=====

We design custom made solar traking systems for any type of motor or application. If you have questions you may send them to [[info@sunreign.com info@sunreign.com]].

====Ways to determine position====
There are different approaches to orient towards the sun automaticaly. This also depends on the thype of mount for the mirrors chosen. The most common is using a differential between two fotocells. This does not require knowing the actual position. Another is to use stepper motors and a table of the suns position. This can also work with servo motors. Stepper motors and servos can be used to reflect sunlight, but they are a bit more expensive. A cheaper alternative to stepper motors and servo's may be an ordinary motor combined with a [[http://www.scienceprog.com/using-gray-code-for-rotary-encoders/ Gray Codeing Wheel]]. Lastly there are clock gears that can in theory operate both axis (no example known).

====Microcontroller types====
Pic(axe) based trackers

====Control Circuits====
[[http://www.greenwatts.info/ GreenWatts]]
[[http://www.redrok.com/electron.htm Redrok]]
[[http://www.theanalogguy.com/ The Analog Guy]]
[[http://www.fusionseeker.com/ Fusionseeker Products]]
[[http://home.tiscali.nl/markhome/index.html?suntrack/suntrack Suntrack]]
[[http://www.redrok.com/electron.htm#led3x Red Rock Tracker]]
[[http://www.phoenixnavigation.com/ptbc/articles/ptbc55.htm Schematics 1]]
[[http://circuitos.cl.tripod.com/schem/r21.gif schematics 2]]
[[http://www.mtmscientific.com/solartracker.html kit 1]]
[[http://solarcooking.org/plans/Cookerbo.pdf Tracker Design 1]]
[[http://www.altera.com/literature/dc/2007/t3c.pdf Tracker Design 2]]
[[http://www.8051projects.net/e107_files/public/1242614085_16317_FT0_using_pic_complete_tracker.pdf Tracker Design 3]]
[[http://www.solbot.at/ Multi heliostat ideas]]
[[http://pages.prodigy.net/rich_demartile/ Suntracker]]
[[http://www.mtmscientific.com/solartracker.html MTM Scientific]]
[[http://shiftingsolutionsllc.com/news-articles/how-to-build-a-solar-tracking-system/ Schematic]]
[[http://journal.library.iisc.ernet.in/vol200605/paper1/415-437.pdf Low Torque]]
[[http://www.devicelogic.com.au/other/heliostat-control-system-for-solar-thermal-power professionals]]
[[http://www.heliostat.us/howitworks.htm Rasp solar tracking]]
[[http://www.green-trust.org/pvtracker.htm Steve's tracker]]

[[http://www.cerebralmeltdown.com/projects/suntrackprogram/default.htm Software]]

====Heliostats PV====
[[http://www.sollandsolar.com/news/sunweb-tracker Solland Solar Tracker]]
[[http://www.ades.tv/index/2 2 Axis ADES Heliostats]]
[[http://www.solar-trackers.com/photogallery.asp 1 Axis Traxle]]
[[http://www.solazone.com.au/tracker.htm 2 Axis Solazone]]
[[http://zomeworks.com/products/pv-trackers/introduction 2 Axis Zomeworks]]
[[http://www.dobontech.com/tetra-track/tetra-track.htm Theta Track]]
[[http://www.degerenergie.de/de/products/ DEGERenergie]]
[[http://www.tracker.cat/eng/mini_solartracker_ms-3.htm 2 Axis Feina]]
[[http://www.mecasolar.com/_bin/index.php 2 Axis Mecasolar]]
[[http://www.heliotrack.com Heliostat and tracking]]
[[http://www.elvityl.gr/114655A7.en.aspx Heloitropio]]
[[http://www.google.com/patents/about?id=fIGAAAAAEBAJ&dq=7240674 Thermal Expansion Hydraulic Patent]][[http://www.youtube.com/watch?v=7hbaGZXpFRo also here]]
[[http://www.titantracker.com Titan Tracker]]

====Heliostat Solar Thermal====
[[http://www.practicalsolar.com 2 Axis Practical Solar]]
[[http://rossen.ch/solar/miniheliostatfaq.html A Swiss project]]
[[http://heliostat.us/ An interesting diy project]]
[[http://www.iwilltry.org/b/projects/build-a-heliostat-for-solar-heating-and-lighting/ Another interesting diy project]]
[[http://cheaphelios.blogspot.com/ Cheap Heliostats]]
[[http://www.heliostaat.nl/ Heliostaat.nl]]

====Gear====
[[http://www.usdigital.com/applications/solar?gclid=CNLcvNbBjp8CFeZr4wodzVYzJw US Digital Inclinometers]]
[[http://www.truetex.com/servomod.htm DC motor based servo]]
[[http://www.h-fang.com.cn/products_index.html?gclid=CM-0vbrBjp8CFR9o4wodF1rtIQ Heavy duty gear]]
[[http://www.techline.nl.linak.be/Producten/?id3=1321&gclid=CNOz-onCjp8CFYIA4wodeheGHQ Actuators (Dutch)]]
[[https://utilityscalesolar.com Untility Scale]]
[[http://letsmakerobots.com/node/14671 Servo based linear actuator]]
[[http://www.rs-online.com/index.html Linear actuators]]
[[http://www.grainger.com/Grainger/items/2L004 Gear motor]]