What are the advantages of induced draught cooling tower over forced draught cooling tower?

When a project is originally designed, the designer must decide whether a natural draft or mechanical draft tower offers the best economic result.

Mechanical draft towers are substantially less costly to purchase, but have the disadvantage of having a continuous auxiliary power draw. They are also physically smaller and shorter.

Natural draft towers consume no auxiliary power, but are very expensive to purchase and erect. They are very large and tall. Often times, plants do not have enough "real estate" to fit such a large structure.

One must do an economic analysis to establish which option is the best choice, economically.

They are also simpler, not having any moving parts