How to Build a DIY Toy Wind Turbine for Your Kids

This fun DIY project is easy enough to make with kids, and is a great way to get them excited about renewable energy. It...

Solar Stirling Engine Efficiency Records Broken by Ripasso Energy

Solar Stirling engine efficiency has been topped this year by Ripasso Energy, a solar technology company based in Sweden. They have designed a Solar stirling...

31% Efficient Stirling Engines Used to Convert 1.5MW of Arizona Solar Power

Stirling engines are known to mankind for about 200 years but they are not so widely used today, except maybe for the pacemakers and long-distance robotic spacecrafts. This will soon change as 60 stirling engines will be used in Phoenix, Arizona, to harvest solar power which will be converted into electricity.

Mechanical Battery – Flywheel-Powered 90% Efficient Energy Storage

We have been so focused on chemical storage systems lately, that some us forget other old, seemingly more efficient, mechanical batteries. Such a battery is the flywheel. Several successful experiments have been carried out in the last 50 years, and the flywheel's applications ranged from acting as a UPS for a hospital to putting an entire train to movement and then to cruise speed, only by its power.

How to Produce Hydrogen From an Aluminum Soda Can and Water

Here's how you can produce hydrogen to power cars, homes, or even toys. Hydrogen is the cleanest energy carrier in the universe, and is...

Gravel Energy Storage System Funded by Bill Gates

The inventor, Aaron Fyke, says his gravel-energy storage system is more efficient and 40% cheaper than pumped hydro, and can be installed virtually anywhere...

The global transition to clean energy – explained in 12 charts

A report released by Renewable Energy Policy Network for the 21st Century (REN21) goes into that question in considerable detail. The Renewables Global Status...

Innovative Device Harnesses Heat at Night

New device generates electricity from darkness. Winter is fast approaching, days are getting shorter, nights are getting colder. It is inevitable that even the most...

DIY: How to Make a Solar Cell at Home From Readily Available Stuff and…...

A very neat experiment that anyone with some skills can do in the garage or kitchen is creating a solar cell out of blackberry juice and titanium dioxide (and several other components).

How to Build Your Own Water Car at Home

In July 2005, an American mechanic released most of the details of his simple conversion system which allows an ordinary car to use water...