This easy system is affordable and there is no need to take out a 2nd mortgage:-)
http://www.greenpowerscience.com/
FRESNEL LENS GREEN POWER SCIENCE
How to assemble stock solar panels. These are water tight panels that will not suffer water damage. Free Solar Training Video.
DIY Hydro Power
It’s scenic, it’s rustic, it’s tranquil – and it’s clean, renewable energy. This DIY water wheel was created with many recycled materials and generates about half of the designer’s electrical needs – complementing the output of his solar panels at the New England home. Hydro energy is an old, but not forgotten, sustainable energy option!
Imagine the savings on your electric bill – and the environmental benefits – if you no longer depended on fossil fuels to warm your water! This DIY solar water heater is inexpensive to build and provides scalding hot water in just a couple hours. This particular project requires a little scavenging if you want to keep things cheap and the 5-gallon bucket isn’t quite enough hot water for the average family, but the mirrored solar pre-heater found on Wired actually pumps the heated water into a household tank.
Shade of Green: 100-year old pine tree
Items Needed: Stack of 2×4’s, 4 sheets of 2-inch foamular “pink board,” 4 sheets 1/2-inch CDX plywood, enough cedar tongue-in-groove paneling to cover the inside of your framed walls (exactly how much will depend on the size of your “fridge”), 2 small 24v computer fans, 1-3/4-inch hole saw, nails, general carpentry tools.
Why this Hack: Because you live in the north. Because it drives you nuts that you’re using electricity to chill your food when it’s 20 below outside. Because you’re committed.
Heart of the Hack: The idea is simple, though the execution is a bit more complicated. Basically, you’re building an insulated box that’s going to attach to the outside of your house (preferably in the kitchen area, and preferably to the exterior of an opening that already exists.
Tags: energy efficient refrigerator, hack, using electricity
This was a very successful project, I used an off the shelf 3 bladed propeller, beautifully balanced and extremely strong, made from glass filled nylon, they are designed as ‘pusher’ props and can spin at up to an amazing 13 000 rpm when driven by a radio control plane engine. I suspect just 1500 rpm will be my max as a wind generator.
As the images above show, I used more polycarbonate sheet to fabricate a turbine chassis and tail fin. Polycarbonate is extremely tough and won’t split or crack like acrylic sheet might.
In a good wind, approx 16 m.p.h I charged the 3 AAA batteries in under an hour and then tested a cluster of 60 LEDs directly powered, which were lit without a problem in a good wind (16 mph)
Here is a video of the Gotwind mini turbine in action powering 60 LEDs
link: Mini Wind turbine
Tags: mini turbine, Wind turbine
A Chinese farmer has made his own solar-powered water heater out of beer bottles and hosepipes.
“I invented this for my mother. I wanted her to shower comfortably,” says Ma Yanjun, of Qiqiao village, Shaanxi province.
Ma’s invention features 66 beer bottles attached to a board. The bottles are connected to each other so that water flows through them.
Sunlight heats the water as is passes slowly through the bottles before flowing into the bathroom as hot water, reports China Economy Network.
Ma says it provides enough hot water for all three members of his family to have a shower every day.
And more than 10 families in the village have already followed suit and installed their own versions of Ma’s invention.
Via: TerraPass Link
With the growth in demand, and hence cost of electricity, we have been lured towards soaking up some free solar energy in various ways. Solar water heater is one such device that can reduce your electricity bills by a hefty amount. However, since the cost of solar panels is high, we don’t see solar water heaters installed on every rooftop. To ease things for you Instructables has an interesting tutorial with which you can design a
solar water heater and that too by spending a mere $5.Just snag the coolant grill from an old refrigerator and spend three hours of a hot Sunday morning for the DIY and get water hot enough to burn you at the end of it all.
The only problem with the idea is when water is moving through the grill, it doesn’t get quite as hot, but if you allow it to settle it in there for a few minutes you can get better results. A little tweaking might also help you out on that. If you have thought of any tweaks that could have made this a much better product then please feel free to share them with our team.
