Ocean Energy - Tidal Energy
![](https://i.ytimg.com/vi/JOP33yCKmNw/mqdefault.jpg)
1:58
Wave Energy
![](https://i.ytimg.com/vi/1-2TyKqP84o/mqdefault.jpg)
11:58
Tidal energy could be huge – why isn't it?
![](https://i.ytimg.com/vi/xGfs_q__XcM/mqdefault.jpg)
7:31
Electricity from Tides - Tidal Power Plants
![](https://i.ytimg.com/vi/oos7fETc2OE/mqdefault.jpg)
4:13
BioMass Energy
![](https://i.ytimg.com/vi/AbCIiUWhkd0/mqdefault.jpg)
4:53
The underwater 'kites' generating electricity as they move | BBC News
![](https://i.ytimg.com/vi/8fjWafOajjc/mqdefault.jpg)
2:37
Why Physics Is Hard
![](https://i.ytimg.com/vi/hhnzj82hFM8/mqdefault.jpg)
3:04
Geothermal Energy
![](https://i.ytimg.com/vi/jKQbM8CzQl4/mqdefault.jpg)
6:45