Hello,
We know about wind turbines and solar photovoltaic and solar heat, right? And going beyond biomass, what other sources are there? Well, here are a couple:
Wave Power
A
New Jersey company that already has this sort of power generation in production. The AC that is generated is stored on the buoy in a large capacitor, and then an AC inverter sends out a 60Hz (or 50Hz) AC via a cable to shore. These buoys are set up in arrays that generate a lot of power: 150kW for each buoy, with 60 buoys in each array, totaling ~10mW. The array covers about 17 acres of area, and is located 2-3 miles offshore.
Science Friday Archives: Wave Power
Direct link to MP3 podcast:
http://media.libsyn.com/media/scienc...2007081012.mp3
Tidal power is also briefly discussed.
Here's an alternate way to make hydroelectric:
Turbines Could Tap the Mississippi's Power - Technology Review