In Hartselle, Alabama Larry Thrasher has created a water-powered hydrogen generator that has been shown to increase mileage on his 1996 Cadillac from 19 mpg to 53 mpg.
generator

Hydrogen Gas Saver in Small Alabama Town

Hydrogen Booster DIY Generator for Cars
The Smack's hydrogen generator DIY boosting system for cars electrolyzes water and injects hydrogen and oxygen into the vehicle's manifold reducing emissions significantly and increasing gas mileage as well.
How To Make Your Own Wind Powered Generator
I recently found a PDF describing a step by step method, with pictures, of how to make your own wind-powered free energy to power something up: a light bulb, your TV, laptop, or a small device. Or even charge a battery to light your house during the nights.

Voltaic Generator Solar Bags and Carrying Cases
The Voltaic Generator, due out the end of April, is the first carrying bag with solar cells powerful enough to recharge a laptop computer.

Hydrogen Generator Types
Three types of clean energy hydrogen generators are profiled including those for cars, fueling stations, research, backup power and electricity generation.

Knee-brace power generator developed
researchers have unveiled a new accessory for your knees that puts the trendy timepiece to shame. Generating more than 1000 times more energy, the "Biomechanical Energy Harvester" may provide a green way to power the portable devices of the future.

Hydrogen Generator Uses Clean Energy
A clean energy hydrogen generator has many uses from backyard experiments to powering cars and homes to bigger applications such as large-scale power plants.

KiteGen - Rivaling nuclear power for global electricity consumption
The efficiency of the system would be so great, in fact, that Sequoia estimates KiteGen could produce one gigawatt of power for just 1.5 euros per megawatt hour.

Amazing Green Bike Makes Electricity (Video)
Watch this video of the bike that generates electricity. Come see how to get exercise while producing energy at the same time!

Hydro-Hydraulic Energy Invention
Pakistan inventor Sarfraz Ahmad Khan has been working hard to develop new hydro technologies like this hydro power invention. His latest concept features the run of river active setup of micro hydro power generation blended with basic principals of hydraulics. This concept explores the possibility of transmitting the (collective) mechanical power gained from run-of-river hydro setup by converting it into hydraulic pressure.