I have a swimming pool that would prove "that ain't necessarily so".
Algae as an energy source has the same drawbacks as any solar project. It doesn't work at night, on cloudy days, when buried under 2 feet of snow, &c. Because the sun puts out about 84 watts per square yard, you need lots of area to intercept enough energy to do anything useful whether photo-voltaic electricity, heating water for your home, or growing green slime. The state of "green energy" at this stage of the game is "NOT READY FOR PRIME TIME"! There is no way that it could maintain our current economy/life style.
Regards,
GtG
“84 watts per square yard”
So, if you have 30 lights and other electrical sources in your home that need 75 watts each, you will need....well, it’s more land than I own, that’s for dang sure. Then, there’s the whole air conditioning and refrigeration issue.
I used to correspond with a biomass guy. I couldn’t get my arms wrapped around the concept’s viability. I figured we’d need something the size of the Pacific to get to a real product.