Using empty soda pop cans, a wooden frame, vacuum hose, and plexiglass you can build your own solar heater that boosts temperatures by 15 degrees! I decided instead to take advantage of the south-facing side of the garage and build a solar furnace to collect some of that sunshine just bouncing straight off my garage . My dad built one years ago and said he recorded a 110-degree temperature differential between inlet and outlet. And I had enough scrap materials around the basement to do something similar.
I am not going to repeat all the details on how to build a solar panel, there are plenty of other instructables for this (search tool is your friend!). I will give some basics, though... and then focus more on the "hybrid" nature of my panel (PV + thermal). General characteristics:
<object height="344" width="425"><param name="movie" value="http://www.youtube.com/v/glAjbrQLsRU&hl=en_US&fs=1&rel=0&color1=0x3a3a3a&color2=0x999999"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed allowfullscreen="true" allowscriptaccess="always" height="344" src="http://www.youtube.com/v/glAjbrQLsRU&hl=en_US&fs=1&rel=0&color1=0x3a3a3a&color2=0x999999" type="application/x-shockwave-flash" width="425"></embed></object> video How to Build a Wind Power Generator Harvesting the wind for energy is not a new concept.
I started by Googling for information on home-built wind turbines. There are a lot of them out there in an amazing variety of designs and complexities. All of them had five things in common though: 1. A generator 2. Blades 3.
Introduction A solar cell's purpose is to generate electricity through the release of electrons from a material that is bombarded by electromagnetic radiation or photons. Most crystalline solar cells are sensitive to visible radiation from 400 - 700 nanometers, which correspond to 3.1 - 1.8 electron volts, of the visible region as shown by ACEPT W3 Group (1999) and also into the near infrared spectrum. As the wavelength of the electromagnetic radiation increases, the amount of electron volts decreases.
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. No electricity equals no light pollution.
High power Pedal generator (300 watts) 15/04/10 Click image for Hi res version This is my latest attempt at building a highly efficient powerful pedal generator. Pedalling a stationary bicycle can at times be a little tiresome therefore I wanted to make an as efficient as possible pedal generator so for every joule of energy I exert I then harvest the maximum amount of power out.
If you are interested in buying a bicycle generator already built, then click here Lets' say i want to power a 400w high pressure sodium grow lamp and to leave it on for 18 hours per day how long would I have to cycle for how would i even rig a 400w hps bulb to that and store the energy ??? The first step to find the answer to your question is to make some assumptions: 1- Assume you want to power your grow lamp
Use these free videos and plans to make your own pedal power bicycle generator station. Good for powering up your television or charging a battery or powering CFL / LED lights . Great source of emergency survival power and an alternative green energy source.
In the last issue, there was an excellent article by Dorothy Ainsworth on water pumping using mechanical windmills. In this issue I will address another form of "free" water pumping. There are many remote applications where a solar-powered water pump is more cost effective than installing a conventional grid-connected AC pump.
This subject will be more of an index and overview to information about how to become personally energy independent. There are many means of generating fuel and power of your own, or using alternative fuels well beyond the scope of a single 'how to' article. If you want to live comfortably 'off the grid', you certainly can. Self sufficiency doesn't mean you camp out and live like a cave man. What you are capable of, in this area, depends largely on your resources and skills, and what makes the most sense to do depends on where you are, or expect to be.
In the event of extended blackout, you may have critical systems (such as computer or medical equipment) that must remain running no matter what. This guide will yield one scalable uninterrupted power supply system. You may extend it with power generation, or solar/wind/etc. as you see fit. Most uninterrupted power supplies sold for computers 'switch' power, running a small inverter when power is interrupted, then switching back to 'normal' power when it's back on. This one simply produces AC power with a continuous duty inverter and assumes some system(s) will charge the DC battery supply it requires faster than it consumes it. This makes the design simpler and also allows more than one kind of DC power source to participate in charging the batteries.
How to Use Magnets to Power a Light As described in Halliday and Resnick’s “Fundamentals of Physics,” when a closed wire crosses a magnet’s field lines, the wire experiences an... How to Use Magnets to Create Energy Magnets are pieces of material that generate a magnetic field, with a positive and a negative pole. They are at the heart... Healing Power of Magnets The use of magnets for healing dates back to 2000 B.C. in China, recorded in the Yellow Emperor's Book of Internal Medicine....
How to Make Super Strong Permanent Magnets Magnets generate magnetic fields and can attract certain metals to them from a distance. Magnets can push or pull on each other... Making Super Magnets Regular magnets are great for sticking reminders and recipes to your refrigerator but to really command some powerful magnetism you must employ...