So your answer no. You have not actually harvested algae oil, and other than pilot projects, neither has anybody else. An automated harvesting system is essential to large scale oil recovery, and make the R&D expensive and problematic.
Anyone still touting the fossil fuel argument is stuck on stupid. Shell is harvesting oil from 5+miles deep in the gulf of mexico. Russia and other contries have similar deep recovery strategies. Such deep oil cannot be the result of decayed surface life. Oil is more than just a fossil fuel.
If you are looking for cheap, pollution free energy, with companies that have products which can do the job in real time, I would suggest you look at ocean current energy. The Gulf Stream could produce ten times the energy of Hoover Dam.
Underwater windmills are going to be more expensive than land windmills, and the land windmills do not make economic sense as it is. Extracting large amounts of energy from the wind and ocean currents is going to affect climate much more than CO2 emissions from coal would have. Windmills can not produce transportation fuel, at least with any efficiency.