How Solar Works
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How Solar Works

System Components
A commercial solar system normally includes the following components:
1.  Solar Hot Water Collectors (Evacuated Tube or Flat Plate)
2.  Circulation pump
3.  Controller
4.  Hot Water Storage Tank(s)
5.  Backup Energy Source 
Operation
1. Energy in sunlight is absorbed by the solar collector, heating up the liquid inside.
2. The heated liquid is transferred back to the hot water tank by the circulation pump.
3. Throughout the day solar energy gradually raises the temperature in the hot water tank.
4. If the solar energy is not sufficient to provide hot enough water, a backup energy source (electricity, gas, oil etc) is used to further heat the water. 
The same basic system design shown in the residential system below is applicable to commercial projects, just with more collectors, more powerful circulation pump and more hot water storage capacity. Commercial solar hot water systems are normally configured to provide "pre-heated" hot water to the existing boiler equipment.
Overview Video
The following video provides an overview of the design of Apricus evacuated tube collectors, basic solar water system operation as well as guidelines for solar collector location, direction and installation angle.
 
Founded in 2003 by Australian Mick Humphreys with a specific focus on solar thermal solutions, Apricus has since grown into a global company with distribution and support offices worldwide. 

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