New Shower Costs. The actual cost of a new shower depends on your location, the materials used, the complexity of the installation, and other factors. 1  A basic shower enclosure may cost as little as $400 to $600, while a combination bath/shower unit or a top-of-the-line surround could cost $1,500 to $3,000 or more.
A metal with a large number of free flowing electrons most likely has good conductivity
In salt water, battery acid, wet earth, and human bodies, the ions found naturally in those materials are forced to flow. For example, an electric current in salt water is composed of positively charged sodium atoms moving in one direction, while negatively charged chlorine atoms go the other way. During currents in plasma, movable electrons are flowing one way while positively charged gas atoms go the other way.