The present disclosure addresses the problem of ensuring that wind turbine voltage levels within a wind power plant do not exceed predetermined overvoltage andor undervoltage protection levels. Specifically, the present invention provides an electrode material for use in an aluminum electrolytic capacitor, the electrode material comprising a sintered body of at least one of aluminum and an aluminum alloy. An airbag module is included that itself includes an airbag. The pair of tapered facets and the microlens are defined on the input face such that they share respective portions of the facial waveguide region on the input face, with the tapered facets occupying peripheral portions of the facial waveguide region on the input face and the microlens occupying an interior portion of the facial waveguide region on the input face. Furthermore, the present invention provides a method and apparatus that platesdeposits andor polishes a conductive material and improves the electrolyte mass transfer properties on a substrate using a novel anode assembly.