Red Rock Energy Heliostats πΩθ©±°²³µ¼½¾÷ø shortcut theenergydude forsale 2/3 Motion Heliostat 3M SMF1100 Solar Film Acro Solar The Acronym Finder Air Analemma APRS Arc Heliostat Arizona Solar Center American Solar Energy Society Ben Wiens Bizarre Stuff Borealis Keith Burnett Calculators CampaTracka Cell Si Co Cerebral Meltdown Chace CiraLight ClearDome Solar CLFR Colon Concepts Cooker CRACKED CREST Currency Definitions Rich DeMartile Dew Point Dish DNP Group DSIRE Ecomall Edit+ EGIS El Cheapo Electronic Goldmine Electronics Electronics Lab Energy Warrior EV Event Flight Simulator For Sale Focal Length Formulae Four Solar Free Energy Fun Science Gallery Leo Gerst Greenpeace & PV Heat Engine Heliostats Helio Track H-Ion Home Heliostat HomePower Magazine HotBot Philip J. Hurley HyperPhysics Ingrams Jade Mountaim Junk Science Richard J.
Geothermal Installation by the Numbers in Pennsylvania A lot of friends and neighbors ask why we switched to geothermal; here is the answer to that question by the numbers. All numbers used are verified averages, they are not estimates. In August of 2009 we installed a 5 ton geothermal heating and cooling system to replace our propane furnace and central air conditioner. The chart to the left shows the system cost. Don't let the initial cost scare you away - the signficantly lower cost of operation will make up for it. $3,000 - $4,000 per year to Heat with Propane Making a simple Savonius wind turbine by Lance Turner There are many situations where you might need a small amount of electricity, for instance running gate openers, safety lights, water level indicators and other low-power devices. While solar would seem like the ideal solution, quite often this is not possible due to location and shading problems. Just such a situation arose when I decided to make our new gates automatic. There were just too many trees in the way for solar power to work, and I didn’t want to run power some 30 metres or so from the house, as it would have meant digging a trench for the cables, which is almost impossible in our rocky ground.
Solar Air Collector Performance Testing for DIY Collectors Search The Renewable Energy site for Do-It-Yourselfers The method used was to build 4 by 8 ft prototypes of several different designs and test them side by side. Side by side testing of collectors eliminates a lot of the difficulties in doing good comparison tests of collectors -- if the two collector designs being compared are sitting right next to each other and aimed in the same direction, then the performance of the two can be compared in a pretty straight forward way -- you don't have to worry of variations in sun intensity, ambient temperature, wind, ... because both collectors are seeing the same conditions. In each of the side by side tests, a new collector design was tested next to the same baseline design collector that is the same each time.
e72 . lab 7 : Solar Seeker In this lab we created a solar seeker, namely a simple device that tracks a light source. Such a device can be used in satellites to keep the solar panels aligned with the sun, or in search and rescue robots that try to guide trapped people towards light. In order to implement the solar seeker we used two Cadmium Sulfide (CdS) photocells and a servo motor that rotated the photocells.
Wind Turbine This post is not about Embedded Systems. But it is about a DIY project of mine. Old PC Fan to Wind Turbine. I looked at the some old PC Fans I have and thought that they can be used as Small Wind Turbines. The PC Fan is Brush less DC ( BLDC ) Motor.
Alternative Energy Solar Roadways: Replacement for Costly Asphalt Emergency: Please Donate to ForbiddenKnowledgeTV! For nearly 5 years, we have striven to keep this service free for all - but must now ask for voluntary donations from the viewers who enjoy this site. According to my mass-emailing service, I receive an average of 20,000 page views per day, sometimes much more but usually not much less. This is the traffic which I receive from subscribers of my newsletter and to whomever they may forward my newsletters. How I built an electricity producing wind turbine 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. I found a great piece of property.
almost free garage heat – just drink a lot of soda I’ve had a few days during the HMX build while I’m either waiting for parts or waiting for something to dry and had some free time. I’m not exactly one to sit and watch TV when I have nothing planned, so I set out on another project. While I have electricity out to the garage now, heat has been an issue all winter long. Mattar graciously lent me his kerosene heater, which did an okay job of taking the bite off the chill. Insulating the garage would go a long way to help keep the bitter Vermont cold out, but that’s a project for another day.
Arduino Platform - Differential Gap Control (Solar Tracker) Download schematic and source code - 19.66 KB Introduction This article gives a very simple introduction into writing a differential gap controller on the Arduino platform. Ibasei's Cappa provides hydroelectricity on a small scale The Cappa compact hydropower generator can deliver 250 W of electricity Image Gallery (4 images) Despite being the most widely used form of renewable energy worldwide, hydroelectricity is generally reserved for large-scale commercial installations built around massive dams.
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.
Comparing Solar Air Heater Designs & Performance — Stonehaven Life In my last post – Solar Heat: Free for the Taking, I covered some of the background information on how to take advantage of the sun’s energy to help heat your home. Building a solar air heater is an easy and rewarding project for both beginner or experienced DIYers and there are all kinds of different designs and plans floating around – just ask Mr.Google. The most popular and flexible DIY solar heater projects seems to be the self-contained unit which can be attached to a wall or roof for supplementary heat. Today I’m going to look at 4 of the most popular variations of these units. And thanks to Gary & Scott, a couple of dedicated solar enthusiasts, I can share a brief summary of the comparable performance you might expect from these units. Design basics
Super Simple Sun Tracker. - Jose Pino's Projects and Tidbits. I Got some solar cells since two months ago, but it wasn't until the last week I decided to put those solar cells to work. I really didn't have any good idea for it, I was thinking to use it to power toys or some homemade projects. Finally, I thought I can use those solar cells to charge rechargeable batteries.