Category: Solar panels review

  • How Solar Works

    Think of the wires coming into your house as if they were water lines. First, water would enter on one of the lines and exit on the other line. Then the exit line becomes the entry line with the water going out the original exit line. This happens 60 times a second in the United States. This is known as alternating current (A.C.). Solar photovoltaic (P.V.) panels work by sunlight striking the materials in the panel. When sunlight strikes the material in the panel's cells, it causes free electrons to flow as direct current (current flowing in one direction. Each solar panel has ft's own micro inverter. The micro inverter needs A.C. power to close a relay. When the A.C. relay has power Solar Brisbane, it closes and allows D.C. power to flow. Think of the inverter as having 4 silicon rectifiers configured in a square configuration, with the square resting on one point, making it look like a diamond. Silicon rectifiers work like little switches. When the voltage is zero, the switch turns on and let's power flow from the D.C. side to the A.C. side. (Think of the D.C. side as having more water pressure than the A.C. {actually electrical pressure} side) electricity flows to the side where there is less pressure. When the pressures are equal the switch shuts off and does not allow flow in the opposite direction. Picture the A.C. connections one at the top corner and the other at the bottom corner, of the square that's resting on the tilted corner. Now, on the top right hand line and the bottom left hand line, the silicon rectifier's (S.C.R.'s) are in the same direction of the tilted square; conversely, the silicon rectifiers (S.C.R.'s) on the top left hand line and the bottom right hand line, are in the opposite direction. Once your panels have sufficient sunlight, they start producing voltage. The more sun you have and the more perpendicular the sun angle is, the more electricity your panel(s) produce. Once the voltage output of your solar panel is above zero, the micro inverter can start transferring power to the A.C. line. You get 60 pulses in one direction and 60 pulses in the opposite direction. Your home and the A.C. grid see this as normal A.C. power. My current system has 37 panels. I started out with 27 panels. Two had badly connections initially; but, the connectors were easily replaced. I then added another 10 panels. You do need an engineering report, that your roof can take the weight of the system. The engineering report can be obtained free of charge, from your home's builder. Then your system must pass an inspection by the county; and, then N.V.Energy, who will provide you with a new electric meter. Your new meter will show electric use from N.V. Energy; flow back to N.V. Energy (for which you are compensated for at the same rate); and power produced (from your solar panels). I also have a separate meter on my system to show me how much power my panels produce every single day. There was one month their meter malfunctioned. I informed their customer service, that I could produce to a judge, two separate copies of my daily logs. If they tried to have me pay more than was required; I would sue them for 6 to 7 figures to teach them a lesson. They sent me the appropriate bill covering two months usage AND production.