Sun power/heat generation
2021 - 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 Greentech Media News: Study: Fossil Fuel Generation Has No Business Case in Australia.
see eco/sunpower/SolarPanel , eco/sunpower/mirror , eco/BatteryStorage
macspares pipe insulation, Armour Flex
- Dodgy shop, no stock, got insulation form Fereiras westrand, great with slit and seal, only problem, not UV stable.
- 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
Eskom Demand side management rebates
http://www.sessa.org.za/renewable-energy/solar-thermal-energy/solar-water-heating
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
solarbridgetech - micro inverters and monitoring on each panel
Enphase Microinverter System
Solar Water heating
- Two main types, flat-pannel or vacuum tube, both can be gravity or forced.
Comparison between the two ITS-SOLAR-flat-plate-vs-evacuated-tube1.pdf
Explanation of how the vacuum tube works ITS-SOLAR-how-does-an-ethp-solar-collector-work4.pdf
RoboHeat(LST).pdf - RoboHeat - Heat pump
http://www.solarsaver.co.za/ South African solar water heating resellers
GeyserWise - Manual-1.pdf Solar control unit
http://www.nastep.co.za/ - Chinese importer evacuated tubes and PV
http://www.plumberama.co.za/Plumbing_Supplies_Contractor.html#
Sub metering
Under floor heating
http://www.motherearthnews.com/Renewable-Energy/1979-09-01/A-Homemade-Solar-Water-Heater.aspx
Designing underfloor water heating ../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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