Abstract: Systems for producing electrical energy from heat are disclosed. The system may include a carbon-nanotube based pathway along which heat from a source can be directed. An array of thermoelectric elements for generating electrical energy may be situated about a surface of the pathway to enhance the generation of electrical energy. A carbon nanotube-based, heat-dissipating member may be in thermal communication with the array of thermoelectric elements and operative to create a heat differential between the thermoelectric elements and the pathway by dissipating heat from the thermoelectric elements. The heat differential may allow the thermoelectric elements to generate the electrical energy. Methods for producing electrical energy are also disclosed.