False-Bottom Candy Pail by scoochmaroo

Dual Parabolic Dishes on Equatorial mount (and their desc… by gaiatechnician

How to Make a Seed Organizer From a Tissue Box by treesneedtobehugged

How to Make a Durable Harvest Basket Made from Recycled M… by treesneedtobehugged

How to Make a Seed Card by treesneedtobehugged

Dual Stator Smart Drive Wind Turbine (Tutorial) by benmurton

"The Solar Baby" Solar Oven, cooker. by aleutianwind

Solar Boat Kit :: KidWind Project by kidwindrob

Model Wind Turbine :: KidWind Project by kidwindrob

Recycled Solar Power by aleutianwind

Alternative to Scheffler solar kitchens by gaiatechnician

How to Make a Seed Bomb by treesneedtobehugged

The "Solar Baby 2 " Solar Oven. by aleutianwind

DIY Solar panels for RV or off grid by aleutianwind

Natural and CHEAP Weed Control by treesneedtobehugged

DIY: Simple, efficient wind turbine rotor by farrukh khan

Cardboard and Duct tape Solar Oven by aleutianwind

Solar powered Reverse Trike by farrukh khan

Thermoelectric Fan Powered by a Candle by Joohansson

Solar design t-square for designing solar cooker reflectors by gaiatechnician

Hand Cranked Flashlight Mod plus Joule Thief by Biotele

Kyoto trough solar cooker mimics a parabolic dish without… by gaiatechnician

Charge Your Cellphone Using Wasted Heat (and Build a Stea… by splitreaction

How To Make A Tesla Turbine (Greenest Turbine) by CrazyMachinist94

Software for solar design. Help improve the explanation. by gaiatechnician

Solar Hot Water Heater Batch Pre-heater by aleutianwind

Wind powered ametek 30 wind generator by aleutianwind

"Compound" parabolic solar cooker, make a templ… by gaiatechnician

Intelligent Solar Garden Light - Part 2 by zzpza

Intelligent Solar Garden Light - Part 1 by zzpza

S.P.R.E.E. (Solar Photovoltaic Renewable Electron Encapsu… by charlitron

Optics experiments on the cheap by gaiatechnician

A mould for cardboard and plastic solar cookers by gaiatechnician

Making and using a "compound" parabolic solar cooker (La… by gaiatechnician

Solar Powered AC110-120V outlet by i.need.help

Solar Generator by tk1314

Low Tech HELIOSTAT. How do I attach the suntracker? by gaiatechnician

Adapt a clock today! Cheap trackers boost solar panel and… by gaiatechnician

Hard Drive Parts Generator and Theory Tester by FullyInvolvedScientist

Make Biodiesel! by drinkmorecoffee

I need your help. IPT (Inductive Power Transfer) by puffin_juice

Make Your Own Biodiesel Processor by drinkmorecoffee

Faroun Savonius Wind Turbine by faroun

Cardboard Savonius Wind Turbine by rhackenb

Wind turbine with bicycle wheels by frednerk

How to Make a Wind Powered LED Out of a VCR by technogumbo

Make a high powered solar panel from broken solar cells by mattfelice

Simple solar powered pocket submarine with depth control. by masynmachien

Solar Powered Amplifier by pstretz

Solar Cell Phone Charger made from old parts and an...ALT… by veggiecycle

100 Ways to Reduce Your Impact by Brennn10

Lenz2 wind turbine by rhackenb

DIY Solar Panel by giladlotan

Free Energy by guyfrom7up

Pulser pump Model. A substitute for lots of fossil fuel? by gaiatechnician

Solar parabolic cooker with the mechanical mathematician! by gaiatechnician

Cordless Drill Crank Charge Batteries by babblin5

How to MAKE PV Solar Panels by VIRON

Run AC Tools on Batteries Directly, without an Inverter by TimAnderson

Build your own flat panel solar thermal collector by iwilltry