Darrieus Wind Turbine by the umbrellas

Bike Generator Patio Furniture Made from Recycled Materia… by KlockworkKevin

How to Build a Bicycle Generator by abemckay

Dandelion Wind turbine by zamiller1

homage to duchamp's bicycle wheel - a dual mode led lamp … by pobriant

Adjustable Ribbon Generator by aprzy15

Upgrade hot-water radiator to convector by leto78

Woodstove Heat Exchanger by VertDude

A Vertical Wind Generator from Washing Machine Motor by Teslaphonics

Water Lint Trap From a 5 Gallon Bucket for All Seasons by Jewel Homes

Ice box air conditioner by chr

How to Power Supply by bricabracwizard

Cheap radiator reflectors to lower your fuel bills by Yorkshire Lass

Clothesline Hangers for Windy Conditions by LowEnergy

Mini Bio-gas plant using food waste, decomposable organic… by antoniraj

Kite with Wind-Powered LEDs by ben.chapman

Poor-Mans Smart-Grid - Blackout Protection by UPS and Ele… by bennelson

outdoor wood boiler from junk by heathbar64

Thermoelectric USB charger - off grid electricity. by scraptopower

Power Tool USB Charger by andrew.spencer.2

DIY Solar panels for RV or off grid by aleutianwind

Cheap Solar 5 volt charger/ power supply by kc8hps

12 Volt DC Solar power supply by kc8hps

Small-scale wave-power - free energy from the beach! by Kiteman

BLUEBOX portable generator by claudiopolis

how to make a strong genorator by agedesign

Dual Stator Smart Drive Wind Turbine (Tutorial) by benmurton

Smart Drive Wind Turbine by benmurton

Micro solar power system by chunkyhampton