I saw a pgm. on cable that offered different type of bio-fuels and the technology going into them.
The interesting one that got my attention was the need carbon-dioxide(CO2) use to pressurize older oil fields into surrendering the last drops of oil from the ground. Because, the CO2 if released into the air is unwanted it too gets recycled into other portions of the field and can be routed to yet another bio-treatment facility that uses CO2 for production of algae. The algae uses the CO2 quite well, releases desirable gases, elchcol, uses the excess CO2(from oil field), when all used-up, the algae is then recycled as feed or compose. Because, it has proven successful, they're ramping up into a larger production already. Pretty neat stuff, all they shown besides the algae.
FYI - I already looked into solar and wind power home/personal production, IT AIN'T CHEAP. You would think at least something to keep the refrigerator going alone would be the biggest loser off power grid alone.
tada -----Willy 