Editing Algae (section)

===Energy source===
{{Main|Algae fuel|Biological hydrogen production|Biohydrogen|Biodiesel|Ethanol fuel|Butanol fuel|Vegetable oil|Biogas|Hydrothermal Liquefaction}}

To be competitive and independent from fluctuating support from (local) policy on the long run, biofuels should equal or beat the cost level of fossil fuels. Here, algae-based fuels hold great promise,<ref>{{cite journal |last=Chisti |first=Y. |title=Biodiesel from microalgae |journal=Biotechnology Advances |date=May–Jun 2007 |volume=25 |issue=3 |pages=294–306 |pmid=17350212 |doi=10.1016/j.biotechadv.2007.02.001 |s2cid=18234512 |url= https://www.academia.edu/2137836}}</ref><ref>{{cite journal |last1=Yang |first1=Z. K. |last2=Niu |first2=Y. F. |last3=Ma |first3=Y. H. |last4=Xue |first4=J. |last5=Zhang |first5=M. H. |last6=Yang |first6=W. D. |last7=Liu |first7=J. S. |last8=Lu |first8=S. H. |last9=Guan |first9=Y. |last10=Li |first10=H. Y. |title=Molecular and cellular mechanisms of neutral lipid accumulation in diatom following nitrogen deprivation. |journal=Biotechnology for Biofuels |date=4 May 2013 |volume=6 |issue=1 |page=67 |pmid=23642220 |doi=10.1186/1754-6834-6-67 |pmc=3662598 |doi-access=free |bibcode=2013BB......6...67Y }}</ref> directly related to the potential to produce more biomass per unit area in a year than any other form of biomass. The break-even point for algae-based biofuels is estimated to occur by 2025.<ref>{{Cite journal |doi=10.1126/science.1189003 |pmid=20705853 |bibcode=2010Sci...329..796W |title=An Outlook on Microalgal Biofuels |journal=Science |volume=329 |issue=5993 |pages=796–799 |last1=Wijffels |first1=René H. |last2=Barbosa |first2=Maria J. |s2cid=206526311 |year=2010 }}</ref>