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= Sun power/heat generation =
 * 2021 - [[https://youtu.be/lF7NZA9eLX4|Solar+4h Battery cheapest]]
 * 2020 - https://www.rnz.co.nz/news/world/429622/green-energy-you-ve-got-cheap-data-is-cheap-power-next
 * Renewable solar now 2019 cheaper than fossil alternatives [[https://www.greentechmedia.com/articles/read/study-fossil-fuel-generation-has-no-business-case-in-australia|Greentech Media News: Study: Fossil Fuel Generation Has No Business Case in Australia.]]
 * see [[eco/sunpower/SolarPanel]] , [[eco/sunpower/mirror]] , [[eco/BatteryStorage]]
 * [[http://www.macspares.co.za/refrigeration/insulation | macspares]] pipe insulation, Armour Flex
   * Dodgy shop, no stock, got insulation form Fereiras westrand, great with slit and seal, only problem, not UV stable.
 * http://solarelectricityhandbook.com
 * Panels
   * Thin-film amorphous silicon panels are 6-10% efficient. (perform well in high-temperature and shaded conditions)
   * crystalline panels 10-14% 
 * Micro Inverter on panel - http://www.whatpowercrisis.co.nz/Residential+Packages+with+Micro-Inverters.html
   * http://enphase.com/products/microinverters/m190-m210/
   * 2018 http://www.enluxsolar.com
 * [[http://www.eskomdsm.co.za/|Eskom Demand side management]] rebates
 * [[http://www.flexopower.com/|Portable power solutions]]
 * http://www.sessa.org.za/renewable-energy/solar-thermal-energy/solar-water-heating
 * http://on-sunsolar.com/
 * Build your own. http://www.science.org.au/nova/005/005act06.htm
 * http://www.solarwaterheatingspecialists.co.za/solar-water-heating-basics/
 * http://www.popularmechanics.com/science/research/4288743.html?page=3
 * [[http://www.popularmechanics.com/science/earth/4287132.html|Solar Power's Top 5 Next Game-Changing Technologies]]
 * [[http://www.solarbridgetech.com/|solarbridgetech]] - micro inverters and monitoring on each panel
 * [[http://www.enphaseenergy.com/|Enphase]] Microinverter System
 * [[http://www.sunrgi.com/|]]
 * http://us.sunpowercorp.com/
 * [[http://www.popularmechanics.com/technology/energy_digital/4276071.html|hydrogen from sun light ]]
 * [[http://www.heliovolt.net/|Urban Solar Solutions]]
 * http://www.plumbing-geyser.co.za/
 * http://www.sustainableprojects.co.za
 * http://www.solarmetrics.co.za

== Solar Water heating ==
 * Two main types, flat-pannel or vacuum tube, both can be gravity or forced.
      * Comparison between the two [[attachment:ITS-SOLAR-flat-plate-vs-evacuated-tube1.pdf]]
      * Explanation of how the vacuum tube works [[attachment:ITS-SOLAR-how-does-an-ethp-solar-collector-work4.pdf]]
      * [[attachment:RoboHeat(LST).pdf]] - !RoboHeat - Heat pump
 * [[http://www.solarsaver.co.za/]] South African solar water heating resellers
 * [[attachment:GeyserWise - Manual-1.pdf]] Solar control unit
 * http://www.solarbalance.co.za/
 * http://www.nastep.co.za/ - Chinese importer evacuated tubes and PV
 * [[http://www.plumberama.co.za/Plumbing_Supplies_Contractor.html#]]

== Sub metering ==
 * http://www.metro-technology.com/submetering.html

== Under floor heating ==
 * http://www.motherearthnews.com/Renewable-Energy/1979-09-01/A-Homemade-Solar-Water-Heater.aspx

 * Designing underfloor water heating [[attachment:../building/ITS-SOLAR-underfloor-heatingAfripex.pdf]]

== Pool heating ==
 * http://www.solarium.co.za/shtc.php - valve , temp controller
 * http://www.waterlinx.co.za/ - Telescopic pool covers
...
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CategoryEcoFriendly