Thermoelectric Generator: How to Build One

A thermoelectric generator is a semiconductor device that transforms the heat difference between its two layers into electricity. It belongs to a class of materials called...

Hydrogen From Water – 3 Production Methods

Getting hydrogen from water is one of today's hottest and fastest-evolving areas in the renewable energy world. The basic methods for hydrogen production, though, have remained the same...

Genepax (Japanese Water Car Company) Shut to Silence

In June last year, everyone may have heard the buzz about a japanese water car. The buzz was about Genepax, a company from Japan who had claimed that they invented a revolutionary system that splits water into hydrogen and oxygen and then uses a fuel cell to recombine it and generate electricity. That electricity would have driven a car, fact that they demonstrated in front of the press at that time.

How to Make a $5 Solar Water Heater From Junk Fridge

One simple way of making hot water has been perfected by a blogger on thesietch.org, and it relies on a simple and easy to find piece of junk: an old refrigerator!

Solar Furnace: How to Build It With Simple Tools

This solar furnace can heat up your room from 10 degrees Celsius to 29. Here's how to build one yourself. (Photo 1) Solar furnace mounted on an...

Why Hydrogen Cars are Less Efficient Than Electrics

The efficiency of hydrogen cars versus battery electrics has been debated for a long time in the past decade. However, despite of all that...

How to Build the Simplest Fuel Cell Ever

The simplest fuel cell "burns" hydrogen in a flameless chemical reaction to produce electricity. In order to 'burn' the hydrogen, a fuel cell needs...

How to Build a Mini Hydroelectric Generator from Washing Machine Parts

In this video we will see how an old washing machine is converted into a little hydroelectric generator for powering an off the grid...

Vertical Axis Wind Turbine DIY Guide

Today I found another DIY project for generating alternative energy, by using the wind. It is a Vertical Axis Wind Turbine (VAWT), and it works by the same principle those huge wind turbines do, but they are much more easy and less expensive to build.

50 kWh Bosch EV Battery will Soon Weigh Just 190 Kilograms

German company Bosch's current goal is to create a 50 kWh battery that weighs only 190 kilograms. Based on recent comments by a company...