Algae May Be Green Energy’s Secret Weapon

Algae are probably one of the most attractive directions of scientific development when it comes to finding new green energy sources. They are cheap. They can be used either as a direct source of oil to make biofuel from, as Exxon is doing or, as a team of Cambridge chemists did, used in a fuel cell to make electricity. This is not the first fuel cell powered by what is called biophotovoltaics. A biophotovoltaic, or BPV, is a solar cell that uses microorganisms to turn solar energy into an electric current. Algae are particularly suitable for these…

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