A method and apparatus for producing electricity using Earth electromotive force is disclosed herein. The method comprises placing a first electrode into a first section of the Earth, typically a hydrocarbon bearing formation. Next, a second electrode is placed into a second section of the Earth, typically in or proximal a water zone. Further, the first and second electrodes are electrically coupling to a boost converter assembly. The boost converter assembly is adapted to convert an input voltage derived from the first and second electrodes to an output voltage higher than the input voltage. An apparatus and electrical system comprising the various components for harvesting Earth energy are further disclosed.