How to Install Solar Panels Wiring for Solar Panels
Alright! We've got the panels mounted and now we're ready to connect the wiring that brings the power down to our charge controller which is located on the ground. We're going to be using this BX style wire which is just twelve gage wire with a wrapping of sturdy aluminum on the outside to protect it from the elements. Typically used in household wiring, pretty common at your home improvement center, twelve gage is adequate for a small system like this. Black wire for our positive connection, the white wire will be negative.
It's also called the neutral in an AC system. But for this we can use the white wire as negative, and then the green will go to our frame as a ground. So, we'll just strip a little bit of wire off here. We've got our DC wires already marked coming from the panels. Red, positive and white is negative. So we'll follow that here, again, and strip these wires down. Special wiring comes out of these panels. It's USE rated versus THHN for instance. And this USE wire is UV stabilized so it can actually be out in the sunlight for many years without.
Degrading. We're using the shielded wire here could be in different styles of conduit or even a UV rated wire for a small installation like this. And your bigger grid type connections, all this can be in conduit and the wire choices would be a little more limited because of the high voltages concerned. But here, twelve to forty volts, we're not really as concerned with that as we might be. Still, it's nice to have everything solid. We're going to use our linesmen pliers here to get a nice solid twist on our positive wires and a little wire nut on top of that, snug.
It down. We've got our negative wire here, and you notice I didn't strip these both at the same time. Even through it's only 40 volts, you can still get a pretty decent shock off of these panels. So, it pays to keep the wires separate. In fact, at the other end here, we're not quite ready to make this connection, we should connect down at the bottom first before making this wire completely hot, just for safety. So now, let's leave this for a moment and go down and wire up our charge controller here in the laundry room.
How to Install Solar Panels Battery Banks for Solar Energy
Now we come to our battery bank for our Solar system. This one is made up of six volt cells combined in different ways to get the voltage we need for our individual inverters. We're going to be using the big Zantrax 1,000 watt this time, so we'll need two six volt cells, in series, to come up with that twelve volts. If you take your battery and connect a positive to a negative terminal that leaves you with a positive and negative terminal and you can get your twelve volts here. If you connect four batteries in series, positive to negative,.
You come up with twentyfour volts. And if you needed a fortyeight volt system, which is not uncommon, you'd simply expand and use more batteries. But for a twelve volt system we'll just use two. And, they're really the most dangerous part of the system. If you look down inside there, you can see a liquid and that liquid is sulfuric acid and will really seriously burn you and that's why we have a base here, Baking Soda, and if you get that acid in your eyes or in your clothing you can neutralize it with this. So, very.
Important to have this for safety. We can get a look at some of that acid here with the hydrometer, this is what you measure the actual specific gravity of the acid inside. And you can see we have several of these disks floating. We have about three disks floating with one at the bottom. So we know that this two batteries, or at least this battery, is about seventyfive percent charged. So, we're going to be very careful with that acid and stick this back here in our little cup. It's also important to note that the gases that.
How to Install Solar Panels Wiring Fuses to Solar Panel DC Side
Alright, now we're ready to wire up our fuses and charge controller on the solar panel DC side. We've got our charge controller ready to go, we're just going to slip our BX wire, which I've actually insulated one of the tips, here, so we don't spark our machine. We'll feed that wire through a strainer leaf and put another little strainer leafer, here, on our BX. Tighten that up a bit. So you can see with that little spark there, that we do have power and we should use some.
Kind of fusing in here just so, if something goes wrong and the fuse blows out instead of the electronics. So, we've got a standard car fuse, this one's rated 40 amps at 32 volts. Really, all we need is about a 15 amp fuse, here, but this should give us some measure of protection. We're going to wire this through on the positive side. We've got a fuse holder that matches our fuse, and we'll just strip off a little bit of this insulation here. We'll form a little edge, a crimp, on this so it will loop under our device nicely. Got.
Screw terminals, here, and we're just going to slip that positive wire right under one of our terminals. In a larger installation this will be done in a separate box, but for a small one, this should be fine. Now, we need to run the other side of the positive wire to our charge controller and we need a little piece of wire for that. So now we've got our little jumper wire ready to go, we're going to strip that off and connect it to the other side of our fuse. Demo So.
How Solar Energy Is Converted To Electricity Through Solar Panels
Sunlight is made up of tiny packets of energy, called photons. Every minute, enough of this energy reaches the earth to meet the world's energy demand for a whole year. Photovoltaic panels consists of many solar cells, these are materials made like silicon, one of the most common elements on earth. The individual cell is designed with a positive and a negative layer to create an electric field, just like in the battery. As photons are absorb in the cell, their energy causes electrons to come free. The electrons move towards the bottom of the cell, and exit through the connecting wire. This flow of.
Stanford Start.Home Solar Panels
We decided to go with thin film. We liked that it was a pretty new technology that's actually getting better and better. There's a lot of great things about it. First, it's a lot cheaper than monocrystalline and it's also uses a lot less material. It's just a thin sheet of glass then, then the semiconductor layer. And so we really like that about these panels. And with a onthegrid system, like our house, you're actually selling electricity back to the grid. And then the great thing about it is that you produce the.
Most PV energy, photovoltaic energy during the day, when the sun's out. And that's actually when you would pay the most for it from the electric company. And so you're selling it back at those critical peak demand times, reducing the overall load on the system. We're using a standing steamed sheet metal roof, and it has these ridges in it so that you can actually use these clip products and just attach the, the PV panels to the roof. So that really reduces the amount of time it takes to install these PVs.
How to Install Solar Panels Grid Tie Inverters for Solar Energy
So today we're installing just a small battery system but for larger houses they make a whole range of equipment. This is a grid tie inverter. We'll just take the cover off and you can see, it's not really that complex. We've got giant coils and switching and some electronics in there. So for a grid tied system you end up using different products, and some of it is quite hazardous so typically you'll hire a contractor to come in and handle the main panel connections as well as some of the paperwork is a bit tricky when you're trying to get.
How to Install Solar Panels Standard Inverters for Solar Energy
Now, we're going to look at standard inverters. Here's one of our new style, sine wave inverters. This one is made by Zantrex, rated at 1000 Watts AC, which is really about eight to ten amps, when you start drawing off of it. It's a fairly simple device. An onoff switch and a small control panel lets you know when the power is coming in and how much is going out. We also have a place to plug in a standard extension cord, and a small fuse, in case things get too high, that will pop out. That's the front controls, and on the back, a fairly.
Simple area, where we connect our battery. Very obvious plus and minus. This is a DC system, and reversing those will blow the thing up, and the mystery smoke will come out, so we watch our polarity. This one also has a fan on it, to keep the inside items cool. Here, we have a slightly smaller Exceltech inverter. This again, is a sine wave inverter. We'll rate it at 250 Watts. A fairly similar setup, we've got power coming in, positive and negative, and our regular switching, and a place to plug in. This one is a little bit.
How To Connect Solar Panels To Battery Bankcharge Controllerinverter, Wiring Diagrams
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