I have been watching the development of using algae as an energy source for a awhile and consider it a viable source. The use of nature to take advantage of the Sun's tremendous energy source potential seems like a great way to go.
Algae has an amazing ability to crank out organic substances from inorganic fuel and, more importantly, the best fuel for that algae is greenhouse gases.
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Thus the Solar/Algae plant co-sited with coal burning electrical generation plants.
Here in PA and also in Wyoming it is "popular" to build relatively small
power plants right on top of exsisting energy sources.then building
power transmission lines to carry the power away, rather than build
a railroad to carry the coal or a pipe line to carry oil or Gas.
Power transmission lines are cheaper to construct than railroads or pipelines.
I can think of THREE Coal fired cogeneration plants locally that are only accessable
by the dirt/gravel road that was built to bring in the construction equipment
and materials to build the plant.
That is because the coal comes straight out of the ground and
is burned immediatly on-site to generate power.
typically 200-odd megawatts, though I know of one
that's only 28megawatts(kinda smallish)