How I built an electricity producing Solar Panel Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size. In my attempt to escape city slicker yuppies (you know the kind, the ones that like to blab loudly on their cell phone while they work on some business administration degree in a cyber cafe somewhere in Trendyland.) and their light pollution, I found a great piece of remote property. The problem is, it's so remote that there is no electric service available. That's not really a problem. I built a wind turbine to provide some power on the remote property. Here is a video of the solar panel set up and in use on my remote, off-grid property. Let me state up front that I probably won't be able to help you out much if you decide to build your own solar panel(s). So what is a solar panel anyway? After a while, I came to some conclusions: seller. A solar panel is really just a shallow box. Oops!
DIY Solar Panels Mike Davis is an astronomer. To practice his hobby away from the light pollution of cities, he bought some land in a remote part of Arizona. But there was a problem: No electricity. But he's a resourceful fellow. He built some solar panels using inexpensive blemished and damaged solar cells from eBay! Read on for more photos and some technical details to give you an idea of how he did it. I bought a couple of bricks of 3 X 6 mono-crystalline solar cells. A solar panel is really just a shallow box. Next I cut two pieces of masonite pegboard to fit inside the wells. I laid out the cells on that grid pattern upside-down so I could solder them together. I used a low-wattage soldering iron and fine rosen-core solder. Here's what the solar panel looks like from the front. Here I am testing first half panel outside in the sun. I drilled a hole in the back of the panel near the top for the wires to exit. [...] Here is the finished product, producing 18.8 volts and 3.05 amps in the sun.
Build Your Own Solar Battery Charger First we need an old window, I got mine from a construction site. Its your basic old nasty basement window. Make sure you wash both sides of the glass well with soap and water and window cleaner, more dust means less light gets through to your solar cells. Next take your multi-meter and sit in a sunny spot (or under a flood lamp) and check all your cells to make sure they get about .5 volts per cell. For this project I used 12 cells but you really only need 6. As you can see they all fit with a lot of room left over, if I wanted to I could have used this window for a larger project but I only need a battery charger for right now. Next we get down to the fun part, soldering. Solar cells are always .5 volts, no matter how large or small they are, they always pump out half a volt. There are two ways to wire power supplies (like batteries or solar cells) together. To wire in series you wire the positive wire from one power source into the negative wire or the other.
How to Make Inexpensive DIY Home-Built Solar Panels with Damaged Solar Cells from Ebay Mike Davis is an astronomer. To practice his hobby away from the light pollution of cities, he bought some land in a remote part of Arizona. But there was a problem: No electricity. But he's a resourceful fellow. Read on for more photos and some technical details to give you an idea of how he did it. I bought a couple of bricks of 3 by 6 mono-crystalline solar cells. A solar panel is really just a shallow box. Next I cut two pieces of masonite pegboard to fit inside the wells. I laid out the cells on that grid pattern upside-down so I could solder them together. I used a low-wattage soldering iron and fine rosen-core solder. Here's what the solar panel looks like from the front. Here I am testing first half panel outside in the sun. I drilled a hole in the back of the panel near the top for the wires to exit. [...] Here is the finished product, producing 18.8 volts and 3.05 amps in the sun. How much did it cost? This is just a quick overview of the project.
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DIY Thermosyphon Solar System Search The Renewable Energy site for Do-It-Yourselfers System schematic -- Thermosyphon Solar Water Heater As shown in the schematic, when sun is on the Solar Panel, the water in the panel is heated, becomes less dense and rises up into the Storage Tank. The heated water leaving the panel is replaced by cool water flowing from the bottom of the Storage Tank into the lower connection on the collector. Sun and gravity take care of the circulating the water, so no pump is needed. The system as shown here does not have freeze protection, so it must be used in non-freezing climates, or be drained for the winter. Building the Collector I used a roll of aluminum 10 " wide, which I cut to length and fit under the tubes. There is a 3/4 insulation sheet behind the plywood and another thinner plywood on the back to protect the insulation sheet. There are two sheets of sun tuf corrugated polycarbonate on top. Collector Installation Some more pictures of the finished collector. Storage Tank and Plumbing
Solar Panel Charging Rechargeable Batteries I made a weather station to continuously monitor daylight and temperature. Since the project is placed away from the house, it is more convenient to use a battery to supply power, rather than a long extension cord. During the day, the weather station should run from a solar panel as much as possible to avoid consuming the battery. And, rather than a person occasionally checking on the battery levels and replacing the batteries, the circuit should recharge the battery pack from excess solar energy from the solar panel. This article describes the solar and battery backup circuit, along with the recharging results so far. Simple Solar Circuit Schematic of a simple solar-panel based circuit. A solar panel is on the left side of the schematic. The device itself contains the usual power supply circuitry, such as capacitors to stabilize the power source and a voltage regulator to establish a voltage level usable by all of the chips and other components. Simple Solar Circuit with a Battery Back-Up
Solar power cheaper than coal as prices keep falling Solar power is now cheaper than coal in some parts of the world. In less than a decade, it’s likely to be the lowest-cost option almost everywhere. In 2016, countries from Chile to the United Arab Emirates broke records with deals to generate electricity from sunshine for less than 3 cents a kilowatt-hour, half the average global cost of coal power. Now, Saudi Arabia, Jordan and Mexico are planning auctions and tenders for this year, aiming to drop prices even further. Taking advantage are companies such as Italy’s Enel SpA and Dublin’s Mainstream Renewable Power, who gained experienced in Europe and now seek new markets abroad as subsidies dry up at home. Since 2009, solar prices are down 62 per cent, with every part of the supply chain trimming costs. Better technology By 2025, solar may be cheaper than using coal on average globally, according to Bloomberg New Energy Finance. Competition lowers costs – Reuters
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