Hi, I'm Amy from the altE Store. The Kyocera KD140 solar panel is very popular for DIY off grid solar. It is available in two different versions, the SX and the GX. So what's the difference and when should I use one over the other The solar cells and frame are identical between the two. The only difference is how you connect them to your solar system. The KD140GX comes with a sealed junction box on the back with about 3 feet of PV wire coming out of the back with solar connectors known as SMK already.
On them for plus and minus. This makes it very easy to wire them in series with other panels, and then you just take an extension cable, cut it in two, and use the resulting 2 cables to wire to your combiner box or pass thru box to continue on to inside in conduit. If you are just wiring 2 in parallel, you can optionally use a coupler to connect the pluses together and the minus together. The GX is also nice for if you have a portable system, such as on a boat or RV, and need.
To remove the connection. With the key, you can just disconnect and store the panels. The KD140SX comes with a junction box, or Jbox, without cables. This allows you to open the back and use your own wire to wire up your system. This can be an advantage when you are installing the solar panel on a boat and want to use marine grade tinned wire. It is also great for a small solar system with only one or two solar panels, you can just wire them together inside the junction box.
By getting your own PV wire and lugs, you can wire them together without needing to have the specialized solar connector cables. Note that the SX comes with 2 water tight strain reliefs tucked inside the jbox to provide a watertight seal around the wire. If you found this tutorial helpful, please like and share it. Please watch more of our tutorials here and subscribe to our channel, altEstore, to be notified as soon as we release a new one! Also visit our website at altEstore, where we have been making renewable doable since 1999.
DIY Solar Panel System Cost
The total of the system and materials was $22K. I ended up spending about another $1,800 in permit fees and a structural engineer and $400 for an electrician, several hundred dollars for a guy to come help me out for the two afternoons he spent with me. Xcel Energy gave me $16,538 rebate. Fix cost based on the number of kilowatts you are installing and has nothing to do with how much you pay the permit office or the electrician. My final cost after rebate was $7,237. I started my research in solar probably about a year before I actually installed it went.
And got a couple of bids from some of the local solar people both from contractors that my friends have used as well as just searching the internet and while talking to one of the guys I find of developed a good feeling from him, and I asked the question Would it be possible to do some of the work myself and kind of learn along the way he said Sure I absolutely support the doityourselfer DIY so I said why don't you throw me bids, what it would cost just come home and have solar one day and what it would cost to have.
It done where I do some or all the work myself. And throw them both to me and I said let's try the second one. The guys name is Steve Cross from Sun Spot Solar. I gave him my electric bills and said this is how much I think I need to generate and he said I agree and lets do these types of panels 180 watts each, you will need some where around 19 to 22 we figured out 21 fit pretty well. So I went and got all the permit information from Golden, filled it out. He came by 12.
Hour one day he type all the Xcel application on the internet and I kind of ran the process and when I had a question I would just send him an email and he helped me out. I think in parallel we order the equipment he dropped off in my driveway. Then one of his installers came out and helped me for two afternoons and I pretty much myself put in the whole rack system on the roof and the installer came out and helped me kind of a two man job carrying the panels up, putting the panels down and bracketing them down.
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The photovoltaic industry is at a very interesting point right now. For a long time the cost of solar electricity was dominated by the cost of the solar panel you had to put on your roof. This was a bunch of expensive semiconductors that you had to put up on your roof. So that's typically dominated the focus of the research trying to decrease the cost of solar energy. So we typically refer the costs of solar power as being composed of the cost of the solar panel and also the cost of the balance of system the ancillary stuff. We're now.
At a point where even if I dramatically reduce the cost of silicon solarcells. These guys are about 20 efficient I'm getting in to tis law of diminishing returns where, even if I started giving you silicon solarcells for free, I'm not actually lowering the overall cost of solar power produced. So that's were concentrating photovoltaics come in.And that's where you're able to take very highefficiency solar cells like what are used on the space station and leverage the very expensive cost by using cheap inexpensive optics like lenses, basically like white magnifying glasses in order to redirect a lot of sunlight very.
Small areas of solar cell. So you can still generate a lot of power, but you don't need very much expensive solar cells. So what we did is we basically tried to take concentrating photovoltaics and scale them down to a much smaller more compact size basically trying to achieve concentrating photovoltaics in the in the same form factor as standard photovoltaics panels. So that you could substitute these very highefficiency concentrating photovoltaics in applications that are traditionally dominated by standard photovoltaics panels. What we've tried to do is implement something that's that achieves that tracking through translation.
DIY 15$ 40w Solar Panel
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