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Portal:Projects

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The Projects Portal

Sharing knowledge to build rich, sustainable lives.
Appropedia is the site for collaborative solutions in sustainability, poverty reduction and international development through the use of sound principles and appropriate technology and the sharing of wisdom and project information. It is a wiki, a type of website which allows anyone to add, remove, or edit content. Registration is encouraged but not required for contributors.

Appropedia has been described as an "appropriate technology wiki," but it is much broader than that - it is a green wiki, and a wiki for all matters of international development and aid. But most importantly, Appropedia is an open site for stakeholders to come together to find, create and improve scalable and adaptable solutions. For more about our motivation, see Appropedia:Mission.

To create a new project page, first browse the project articles and subcategories below for examples and check for possible collaboration opportunities, such as articles similar to what you're considering writing. If you are looking for ideas for your own project, check out our suggested projects. It is highly encouraged to tag your projects with their status -- you can do this with a few templates. Be Bold!

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Selected page

Solar Charged Lawnmower
Solar Charged Lawnmower. An electric lawnmower that utilizes solar power as an energy source will address a number of issues that standard internal combustion engine mowers do not. An electric lawnmower with a solar charger will be easier to use. There is no messy dangerous gasoline to deal with. It will eliminate those pesky trips to the gas station for fill-ups. Just plug the mower into the charging station when not in use and it will be charged and ready for your next mow! Most importantly it eliminates the emissions of an internal combustion mower.

The basic idea is to convert an older non-working gas mower into an electric powered mower by replacing the gas engine with an electric motor that runs from a 12 volt battery. This battery will be charged using photovoltaic panel (A.K.A. - solar panel). I chose to convert an old gas mower rather than just starting with an electric mower due to cost and so I could design the power output. I also planned on using as many used materials as I can. This will help to save these materials from ending up in our already over filled landfills.

I would like to claim that I came up with this solar charged electric mower idea on my own but the truth is I came across an article about one in a "Home Power" magazine (Issue 107) a while back and have wanted to build one ever since. When the opportunity arose to use it as a project in my Engineering 305 class at Humboldt State University I jumped at the chance.

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Things you can do

AEF greywater

Recreating a failing greywater marsh at the Arcata Educational Farm.

This OSAT has been designed but not yet tested - use at own risk.
This OSAT has been modeled.
This OSAT has been prototyped.
This OSAT has been verified by: Name of organization.
This OSAT has been deployed by: Whom at least: How many times in: Where.

You can help Appropedia by contributing to the next step in this OSAT's status.

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Projects gallery


AEF greywater: Recreating a failing greywater marsh at the Arcata Educational Farm.  
Aleiha's parabolic solar cooker: A very hot parabolic solar cooker.  
Argentina photovoltaic: A small photovoltaic system for a natural building/permaculture institute in Central Argentina.  
Backpack frame bike trailer: Big Russ towing one of the least-expensive bike trailer designs out there built from an old backpack-frame.  
Bike snow plow: A retractable snow plow for a bike.  
Bloomfield Cobb Bench: A cobb bench at Bloomfiled Elementary School in Arcata, CA.  
Briceland PV: 960W photovoltaic installation in Briceland, CA.  
CCAT's Vermicomposting Bin: Beautiful, pentagonal, Douglas Fir worm bin.  
CCAT's Living Roof: A living roof for CCAT's Earthen Oven.  
Chris's ENGR305 Solar Food Dehydrator: A hybrid solar food dehydrator, that adheres to as many of the principles of modern food dehydration.  
DIF Adobe Senior Center: Building an Adobe senior center in Parras, Coahuila México.  
Ersson rainwater harvest and purification (original): Rainwater catchment and purification system, at less than $1500  
Greywater Ecuador La lagrima purificadora: Greywater in an Ecuadorian seed saving center.  
Hotel Perote Solar Pool Heating System: Solar hot water system for a hotel pool in Parras, Coahuila México.  
Kiva’s straw bale greenhouse: Year round veggies in a homemade, just under the permitting limit, strawbale greenhouse.  
Micro filter dams at Pedregal in Oaxaca, Mexico  
Occidental greywater: A five stage, activated sludge greywater system in drums.  
Open Solar Outdoors Test Field
Open source photovoltaic
systems performance data  
Openstreetmap
Copyright free
Map Making  
Photovoltaic system at St. Jude's church: St. Jude's Church, Cupertino, CA  
Rainwater catchment at Pedregal in Oaxaca, Mexico  
Reforestation at Pedregal in Oaxaca, Mexico  
Solar Charged Lawnmower: Converting a very used gas power lawnmower into a solar charged, low emission, almost silent, lawn cutting machine.  
Sunny Brae Yurt: Building yurt to brave Humboldt's winter. Arcata, CA.  
Terraces and Ditches at Pedregal in Oaxaca, Mexico  
Tire shingles: Roof shingles made from old racing slicks.  
UTC Solar Distiller: Building a prototype solar distiller in Parras, Coahuila México.  
Zaragoza Solar Hot Water System: Solar hot water system for a residence in Parras, Coahuila México.  

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