Electricity generators are provided that can include: members having opposing bases that include chambers to facilitate the conversion of source energy to mechanical energy with one of the members rotating in relation to another of the members and a housing about the rotating member. Generator components can be operably engaged to the housing and rotating member to generate electricity. Methods for generating electricity are also provided. The methods can include: rotating a first cylindrical member in relation to a fixed second member about a center rod along a shared axis within a housing; and generating electricity between conductive components along both the sidewalls of the first cylindrical member and the housing.