Energy and Dynamic Braking

Energy: you can’t destroy it, but you can certainly waste it. That’s what most motorized vehicles do, including trains. Usually, the energy generated when you stop a moving vehicle is dissipated as heat, and is lost to the atmosphere.
The energy dissipated in braking a 207-ton locomotive during the course of one year is enough to power over 8,900 average US households for a year.
The Power of Pee

“One cow can provide enough energy to supply hot water for 19 houses”
A Tracking Solar Concentrator

for the home experimenter
World’s first wave farm

The Pelamis Wave Energy Converter is a revolutionary concept, the result of many years of engineering development by PWP. It was the world’s first commercial scale machine to generate electricity into the grid from offshore wave energy and the first to be used in commercial wave farm projects.