Step 5: Junction Box At The Back

At the back of the panel I made a junction box with a terminal block. At one site of the block the + and from the panel is going in and at the out side will go the wire going to the inverter. In the junction box is also an diode in between the + from the panel to the + going to the inverter, this will prevent electric current to flow to the panel when the panel is not producing any electricity (like at night).
<p>I used to have big problem finding effective ways to build my solar panels and maximizing my solar power.But I am getting better result now, after I stumbled upon this excellent guide I found <a href="http://the-natural-treatment.com/Solarpanel.php" rel="nofollow">HERE</a>. It was a godsend. It gave me great Solar Panel tips and showed me what I was doing wrong before.</p>
<p>Really cool stuff ! Currently we can <a href="http://batteryrecover.com" rel="nofollow">recondition batteries</a> in simple way. Thank you Gregory !</p>
<p>Sun-powered boards are really making a play in the business<br>world. Business properties have been a portion of the most up to date<br>advancements utilizing sun-powered vitality, and it will just keep on growing.<br>Entrepreneurs have found that doing the change to sunlight based boards can<br>receive different rewards. <a href="http://www.worldsolarpanels.com/" rel="nofollow">http://www.worldsolarpanels.com</a></p>
<p>For those new to solar:</p><p>-Your battery bank is the very heart of an off-grid system. All the panels do are recharge the batteries.</p><p>-You need a charge controller between your battery bank and the panels. If you buy a PWM controller, you MUST match the panel voltage to your battery bank voltage. If you want to pay more you can get an MPPT controller and mix/match voltages.</p><p>-You need TRUE deep cycle batteries, NOT Marine batteries, which are a compromise and a waste of money as they will not last. Golf Cart batteries have long been the best bang for the buck.</p><p>-For an Inverter, don't waste your money on MSW (modified sine wave) as you will encounter all kinds of problems down the line. Some TV's will have shorter lifespans, motors run hotter, digital clocks and timers won't work right, fans will make funny noises and run hotter, things like that. Bite the bullet and get a good pure sign wave inverter. </p><p>-Don't try to use AC switches and circuit breakers with DC current. Arcing is a real problem with DC and you need switches and breakers designed for DC. Not kidding! (As AC cycles it reaches a 0 voltage point. With DC, it stays 'ON' and will arc when trying to switch it off. With high enough DC power, it may never turn off and just keep arcing until something burns/melts.)</p>
We need solar sells
<p>yo how many volts</p>
<p>I used to have big problem finding effective ways to build my solar panels and maximizing my solar power.But I am getting better result now, after I stumbled upon this excellent guide I found <a href="http://the-natural-treatment.com/Solarpanel.php" rel="nofollow">HERE</a>. It was a godsend. It gave me great Solar Panel tips and showed me what I was doing wrong before.</p>
<p>What are some of the cheaper alternatives? Thanks!!</p>
<p>I encourage everyone to get 1-3 panels, a great charge controller and two golf cart batteries. Enjoy running any one item you choose off the sun.</p>
<p>I encourage everyone to get 1-3 panels, a great charge controller and two golf cart batteries. Enjoy running any one item you choose off the sun.</p>
<p>I encourage everyone to get 1-3 panels, a great charge controller and two golf cart batteries. Enjoy running any one item you choose off the sun.</p>
<p>I encourage everyone to get 1-3 panels, a great charge controller and two golf cart batteries. Enjoy running any one item you choose off the sun.</p>
<h3><a href="http://inplix.blogspot.com/" rel="nofollow">inplix.com SCAM HOW TO BUILD SCAM ALERT / SPAM</a></h3><br><p><strong>inplix</strong>.blogspot.com/</p><div><div><div>Dec 10, 2015 - <em>inplix</em>.com<br> scam claims you can build our wind turbines and solar panels if you pay<br> him and download his crap , he is spamming wind turbine ...</div></div></div>
<p>I learned on INPLIX page how to make it easy!!!</p>
<p>Although I'm all for self build, this doesn't seem to be economically viable. Your self assembled panels cost 211 euros (&pound;160) for an 87W array, but fully finished encapsulated 100W panels cost from about 105 euros (&pound;80) and you can get 2x100W panels for the same price as this diy version panel or a 100W panel with controller box for the same price. (all quickly sourced from Amazon).</p>
<p>Just noting, when this instructable was published 7 years ago, the cost of commercial solar panels per Watt was MUCH higher than it is today. So yes, the economics have changed substantially and cost information is out of date. It might still be a worthwhile exercise for those who enjoy making something themselves, or want a custom size/shape, or have a supply of materials on hand.</p>
<p>Apologies and thanks for your considered reply. I didn't realise how old this instructable actually was. I'll leave my reply, firstly to show I was an idiot and secondly because it does point out how quickly the market is changing. Your instructable popped up now when I wrote the comment under some other feature page, so tit must still be relevant! I can see how cheap this would have been 7 years ago! It also shows how cheap solar will eventually become once the production in China ramps up to world wide market penetration and newer and better technologies become available.</p>
<p>Your link is broken...</p>
<p>Your link is broken...</p>
You don't need a payback period for solar panels. That is a myth.<br /> <br /> What is the payback period of a $20,000 automobile?<br /> What is the payback period of your hot water heater?<br /> What is the payback period of your home furnace?<br /> <br /> When he has a power outage, he can hook the panels to some batteries and run a laptop. He can charge power tool batteries and flashlight batteries.<br /> <br /> You can run a single super efficient fridge off these three panels easily. FOREVER (or until the fridge breaks) This will work even a cloudy climate. <br /> What price can you put on that?<br /> <br /> Why not invest in solar panels. They last 20+ years...and counting.<br /> <br /> What is a $20,000 car going to look like in 20 years?<br /> Like a trash heap. You will barely be able to get scrap value for that car.<br /> Oh yeah, what about all the repair parts you bought all those years.<br /> <br /> I encourage everyone to get 1-3 panels, a great charge controller and two golf cart batteries. Enjoy running any one item you choose off the sun.<br /> <br /> It's called progress!<br /> <br /> <br />
I think that might be a bit of whimsy asking about the payback on a car. There is, in fact a pay back on a car. You balance the cost of the car, insurance and gas against the cost of taxis or buses or trains, the cost of shoe soles, wear and tear on knee and ankle and hip joints, lost work do to being late and sweaty all the time and just plain convenience (it has a value, too). The payback on a water heater is balanced against burning cords of wood under big metal tubs to have clean drinking and bathing water and the medical cost to you and your family for not having such a system and the cost to the environment of burning all that wood (or coal) to heat the water. (Yes I know that the electric company burns coal to make electricity and the plumes of smoke are horrible, but the efficiency factor for one large centralized place burning it as economically as possible to make a profit as compared to everybody in every neighborhood of every city in every state burning a bucket or twelve of coal a day is an enormous difference and part of the payback computation. So, solar panels cost X and not using solar panels cost Y. X and Y are not equal and how much of a difference between X and Y is acceptable is a calculation that everybody makes. There is an economic argument to every green project. There is also the argument about how does this change my life and am I willing to do that. Lastly, there is the SPECS argument (South Park Electric Car Smugness) in which some people will choose to do a thing just so that they can enjoy the smell of their own farts. Bottom line is that there are lots of alternatives. Solar is one and it comes with a cost (including the environmental cost of producing solar cells). There are lower tech ways to spend less and save more and they don't require changing lifestyles (which we are never going to do anyway). Cost is a factor,... ALWAYS. Payback is balanced between cost and benefit and it is an empty argument to say it doesn't exist as a factor.
<p>What are some of the cheaper alternatives? Thanks!!</p>
Forget the payback, the simple fact that if the grid goes down he will still have usable power makes it worth it. If chit hits the fan try cooking some food with your cd. Keep trucking, i hope to start making my first panel soon.
Due to the cost of instatllation going with a Battery Based Grid-tied system is the best way to go.&nbsp; However, for the long term benefit of solar power you really should have a Direct Grid-tied system.&nbsp; Installation is the biggest issue when you <a href="http://how-to-build-your-own-solar-panels.com/tips-for-building-solar-panels/save-money-build-your-own-solar-panels-2/" rel="nofollow">build your own solar panels</a>.&nbsp; Go Solar<br /> <br /> <br />
Another thing to consider is that when the sun isn't shining, the wind is probably blowing. The opposite is also usually true. (hot sunny days with no wind anybody,..). My point being that a good use of your investment dollars would include solar and wind integrated direct grid tie.
What an awesome comment ! I never thought of it that way before, :) You Sir or madam, are a genius. I still can't afford the panels yet, but I definitely will remember what you said, when I'm ready to plunk down the lettuce, Thanks, Joe
<p>Running solar panels without any sunlight is easy with the help of radium chloride. Paint both sides of a sheet of paper with radium chloride, sandwich both sides with a pair of solar panels facing inwards, and hook them up to your electrical system.</p>
<p>Don't forget to factor in the lead sheeting to stop you getting radiation poisoning.</p>
<p>But if somebody else's disapproval is not an &quot;issue&quot;, then why not create a battery pack for an electric car out of alternating layers of solar panels and these replaceable painted sheets? Then this starts to sound like one of the varieties of Tesla legends involving an electric car whose non-rechargeable battery pack only required changing out its (radium?) plates once every few hundred miles (300-500 depending on whose version of this story is retold). And the process of exchanging the old plates for the newer replacements was so easy that a child could do it in a matter of minutes! Golly, gosh!</p>
<p>And a whole year's supply of these plates could fit into the trunk of the car! Wow!</p>
Solar cells kaha milegi ?
<p>Spotted a guy suffering just like me :P</p>
<p>One note about the glass one uses, you have to make sure that it is just plain clear glass, most window glass is low E made to block allot of the ultra violet rays, etc., the panels need to produce power. A NON yellowing acrylic sheet would also be better, because it is not low E, and it will take things like Hail better without shattering.</p><p>But as far as your build goes, great job at saving money twice!!</p>
<p>how did u solder the panels together? i cant see any tabs in the picture</p>
<p>You may have made a vital mistake in your construction . You have sandwiched the cells between two sheets of glass but you made no reference to creating a vacuum. The air left behind between the glass will heat up during the day and turn into moisture when the panel cools down this will damage the panel in the end. The encapsulating with using EVA film costs less and you can suck all the air out with a hoover. </p>
<p>Sadly, your link is broken. </p>
<p>I was looking for a higher capacity Solar System (400W or more). I found a really nice instructable. Heres a link<a href="https://www.instructables.com/id/Apartment-Solar-System/" rel="nofollow">https://www.instructables.com/id/Apartment-Solar-System/</a></p>
Have you thought of using some bypass diodes? They are pretty cheap and will increase power production when the panel is partially shaded.
I do agree that solar energy is a great alternative energy source that not only will create a dent in your electric bill, but also it is environmentally friendly. Being someone that knows every little on this subject, I was extremely intrigued on how it would be possible on building a home made solar panel. I feel like a lot of the details were left out of the building process. I do believe that building your own solar panels could potentially be extremely risky if you don't know exactly what you are doing. I recently ran into this website in where you can purchase solar panels around the same price that you spent in purchasing the materials to build your home made solar panels. I do believe that purchasing a solar panel could be a better route to take if you don't have any experience in building mechanics. Here is the website if you are interested in checking it out. Siliconsolar.com
Solar is almost always a good idea. Within certain logical constraints. The investment here for a trial and error configuration is considerable. From what I am seeing the possibility for a total loss is high. You need much more detail on this panels wiring configuration, mounting, etc. This is reads like an overview of your entire project. You seem to have put a lot of time into this but 90% focus on the panel itself would have been nice brother. <br> <br>One day you might want to get back into a panel for a repair. If it we're my panel I'd want to be able to get back into it. Might I suggest 1&quot; foam weather stripping between the glass instead of silicone. It's waterproof, flexible, easily sandwiched, and possibly reusable. <br> <br>For safety's sake if you are mounting a DIY solar panel look at the hardware used on a real installers work. These panels can literally fly away in a very strong wind if not securely mounted. Imagine your cash spinning through the air heading towards who knows what. <br> <br>I had ten panels installed about 6 years ago. I am on the grid. And yes, Edison pays &quot;Me&quot; for the juice as my meter runs backwards often. I get one bill a year and it is about half of what my neighbor pays in just one month. The installation has paid for itself. Now I'm changing out CFLs for LEDs and checking out making a small inconspicuous wind addition to the panels. But yeah without batteries... <br> <br>
it's hard to &quot;be nice&quot; on a page that is uninformative and seems to be a ad then a DIY. aside from the &quot;shopping list, there are no instructions, no step by steps, no websites. I am all for going off the grid, but instructables like this seem to do more harm then good
wow it's a nice idea
Neither Link works anymore!
Definitely per day, as he was saying about 65w per panel times 3 panels is 195w, times X hours of sun per day on average. Where I live it's 14 cents per KWh, so he saves 7 cents a day (optimally set up maybe 10 cents), and $25.55 a year, so about a 25 year payback on the $600+ cost to set up, not including the interest which could be earned if you invested that $600 up front. Add the fact that cell performance degrades over time (warranties on commercial ones allow for performance loss over time) and it'll more likely be 30-35 years, or never if you allow 2-3% interest earned on say a $600 CD investment. <br> <br>I'd love to use such a system if it were viable, but that's only true if you start off the grid and would have to pay up front to get tied to the grid, matching the cost of a PV install. If you're already on the grid, conserving power and being more efficient is the best money saving option. <br> <br>Attach those phantom load appliances to power strips that you can switch off, or to outlets which are controlled by a wall switch, to eliminate that load.
the site given dont work, broken link...
CAn you give any specifics about the requirements for the cells, voltage etc and the dimensions. Or if you have any brand suggestions, that'd be great. Im from the UK
I think this is the site <br>http://www.kpn.com/
The website is still unavailable at 10 april 2012.<br><br>404 error
unfortunately the site is still unavailable today 30th of january...<br>404 page not found on the KPN website..<br>any plans or progress to fix it?
Interesting post, and neat looking panel for a home build, but your link to: http://home.kpn.nl/maas5455/ still is not working. No such page I'm afraid (at 26th December 2011).

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