Abstract: This invention applies technologies and processes to effectively harvest geothermal energy on a large scale defined as electrical power production 100 kilowatts and above. This invention uses Seebeck materials hosted in an infrastructure of electrically inert and near thermally and chemically inert polymers and resins to survive in the very hot and chemically active deep well environments while producing large amounts of electrical power. The Seebeck materials are subjected to geothermal heat energy in the range of 0 to 500 degrees Celsius in the deep well which can be a pre-existing man-made or naturally existing hole or one drilled specifically for this purpose. The Seebeck materials convert the geothermal energy directly to electrical power which is transmitted to the surface through a wire array imbedded in our invention. This invention is closed loop below the surface and only interacts with the radiated subterranean geothermal energy (i.e.