Within these limitations the author has certainly provided a useful book: The actual treatment of spherical harmonics occupies ten chapters with gravitational, electric, and magnetic applications.

such as the Gamesa Electric Proteus, against other models with a lower capacity to attenuate harmonics. It concludes that, in the case of the Gamesa Electric Proteus, production can be up to 0.35% ...

And without significant investments in bolstering electric grid infrastructure, the threat posed by bad harmonics is likely ...